Problems mounting USB drives

I am having some problems getting USB flash drives to (auto) mount on my system.
In the past, when I plugged in the device (a simple USB flash drive), it showed up in Thunar and I could click on it to mount it. Now nothing shows up in thunar when I plug in the device. dmesg shows the following, so I know the device is being recognized:
usb 2-2: new high speed USB device using ehci_hcd and address 14
but it isn't being assigned to /dev/sd*. fdisk -l also doesn't show the device. lsusb shows the following for the device:
Bus 002 Device 014: ID 0781:b6b7 SanDisk Corp.
I added a udev rule to automount in /media, as per the udev wiki instructions, but that didn't do anything. Installing udisks and udiskie was similarly unhelpful. I tried this with multiple USB drives (which I both confirmed were working on other machines) so it doesn't seem to be a HW problem.
Thanks in advance.

You might try reformatting the usb drive using Disk Utility. Use MacOS Extended(Journaled). That might help.
lenn

Similar Messages

Disk Utility 13 problem with USB drives

There appears to be a problem with Disk Utility 13 (part of OS X 10.9). At least, so far as I can tell, everything traces back to this app, or possibly OS X 10.9 itself.
I recently upgraded my MacBook Air to OS X 10.9 (reformatted hard drive, installed system from scratch, updated with all the latest Apple updates). I pre-checked all my third party software to make sure it was 10.9 compatible before installing it after the system cleanup, so everything I’m running supposedly has been approved as safe for 10.9. But I’m seeing a problem formatting USB drives that I do not encounter when running under 10.8.
I have a Seagate STAA500101 (“FreeAgent GoFlex”) drive connected via Seagate’s USB3 adapter that I’ve used for some time as a Time Machine backup. Post-overhaul, I decided to erase the backup and start fresh. When I attempt to format it (single GUID partition) with Disk Utility, I see the following messages go by:
Formatting disk1s2 as Mac OS Extended (Journaled) with name Untitled 1
Could not mount disk1s2 with name (null) after erase
Then there’s a pause, and the format appears to conclude fine. But if I run a “Verify Disk” immediately, I get this:
Verifying partition map for “Seagate FreeAgent GoFlex Media”
Checking prerequisites
Checking the partition list
Checking for an EFI system partition
Checking the EFI system partition’s size
Checking the EFI system partition’s file system
Checking all HFS data partition loader spaces
Volume on disk1s2 has 0 bytes of trailing loader space and it needs 134217728 bytes
Problems were found with the partition map which might prevent booting
Error: Partition map needs repair because a data partition needs loader space.
As the drive has just been formatted, that seemed odd. I took it over to another Mac still running 10.8.5 and formatted it there — it worked just fine. Verified just fine. Took the drive back to my MacBook Air and tried to verify the disk — same failure.
I wanted to rule out bad media, so I took a Lexar 16GB USB flash drive and tried to format it with Disk Utility 13 — got the same problem.
The only success I’ve had formatting USB drives under 10.9 is to boot up into OS X Recovery. Disk Utility there formatted my Seagate drive without an error. But once I booted back into normal 10.9 operating mode, the drive once again fails to verify; it makes me leery about using it as a Time Machine backup.
I suppose it’s possible there could be some background component like Sophos causing problems when formatting drives, but if I format a drive via OS X Recovery or another Mac under 10.8, that wouldn’t explain why the drives fail to verify.
Anyone got any other observations on this issue?

Problem resolved. I'm posting this note for anyone else who might run into this situation and come across this discussion.
It actually did turn out to be Sophos -- Cloud, that is. I'd been using Sophos' free Mac antivirus software on a variety of systems but forgot that I was now testing out Sophos Cloud on my own MacBook, which is their new endpoint solution, and supposed to be compatible with OS X 10.9 (although the Mac version is listed as "beta") Sophos Cloud includes a new feature called Device Control which allows you to create a company-wide policy to control access to hardware such as USB drives, optical drives, etc. But apparently it's still pretty buggy. I had my Device Control configured with the default setting of "monitor but do not block" but it was most definitely gumming up the system. With Sophos Cloud installed, here's what happens if I try to run "Verify Disk" on any attached drive. Note on the left side how "disk2s2" shows as a sub-volume for each hard drive.
So if I uninstall Sophos Cloud, reboot and rescan, here's what I get:
Works fine. Note that the "disk2s2" subvolumes are also gone. This is the way Disk Utility also appears on a 10.8 or 10.9 system, even if you have the standard free Sophos for Mac software installed. It's only Sophos Cloud that's not playing nice. It also appears to have stopped me from being able to play DVDs from an attached Apple USB SuperDrive -- that problem was likewise solved by removing Sophos Cloud.

Pcmanfm is "Not Authorized" to mount usb drives

Hi,
I recently installed arch linux it's a nice distro but I got a few problem with it.
The biggest one is that I am actually not able to mount usb drives with pcmanfm this means that I am not able to use my old debian /home so far.
I tired multiple thinks (some of them are still active) e.g for example I used to setup a udev rules which wasn't helpful at all (and even after deleting this rule I always see server empty folder in /media (but that's another problem)).
Any ideas why I am not able to mount encrypted and not encrypted USB drives in arch linux?
Last edited by 42sec (2011-12-28 13:21:41)

wonder wrote:paste ck-list-sessions output, uname -r and cat /etc/pam.d/login
[sec42@archlinux ~]$ ck-list-sessions
Session1:
unix-user = '1000'
realname = ''
seat = 'Seat1'
session-type = ''
active = FALSE
x11-display = ''
x11-display-device = ''
display-device = '/dev/tty1'
remote-host-name = ''
is-local = TRUE
on-since = '2011-12-28T14:28:01.840505Z'
login-session-id = '1'
idle-since-hint = '2011-12-28T14:28:32.462384Z'
[sec42@archlinux ~]$ uname -r
3.1.5-1-ARCH
[sec42@archlinux ~]$ cat /etc/pam.d/login
#%PAM-1.0
auth required pam_securetty.so
auth requisite pam_nologin.so
auth required pam_unix.so nullok
auth required pam_tally.so onerr=succeed file=/var/log/faillog
# use this to lockout accounts for 10 minutes after 3 failed attempts
#auth required pam_tally.so deny=2 unlock_time=600 onerr=succeed file=/var/log/faillog
account required pam_access.so
account required pam_time.so
account required pam_unix.so
#password required pam_cracklib.so difok=2 minlen=8 dcredit=2 ocredit=2 retry=3
#password required pam_unix.so sha512 shadow use_authtok
session required pam_unix.so
session required pam_env.so
session required pam_motd.so
session required pam_limits.so
session optional pam_mail.so dir=/var/spool/mail standard
session optional pam_lastlog.so
session optional pam_loginuid.so
-session optional pam_ck_connector.so nox11
-session optional pam_systemd.so

Problems mounting USB thumb drives and transferring files

My iMac 24" (10.5.4) won't recognize a USB thumb drive (even if plugged directly into computer, not hub) unless I restart. Then when I try to transfer large number of files back or forth from thumb drive, it won't complete the transfer, gets hung up.
None of these problems with my Intel MacBook (also 10.5.4).

You might try reformatting the usb drive using Disk Utility. Use MacOS Extended(Journaled). That might help.
lenn

[SOLVED]Mounting usb drives "not authorized" with thunar-volman (XFCE)

Hi,
I'm new to Arch (even though I must be approximately at my 15th try at installing it properly) and I have a problem with thunar-volman.
Whenever I log in as user, and try to mount a usb drive with thunar, let's say I want to plug a drive labeled Ext3_8Go, I get the same message in a pop-up window : "Failed to mount Ext3_8Go (or anything close, not in English in the text), not authorized (that part is in English)"
My install is :
- net install
- partitions : 9Go for /, no swap, no separate /home
- packages : base and base-devel. The only modifications in the package list is that I remove ppp, pcmciautils, and xfsprogs.
- config : at the install stage I only modify rc.conf to change LOCALE and HOSTNAME, and pacman's mirrorlist to allow all French mirrors in addition to the one at the top.
When the usb installation is over, I run this script :
"installation_xfce.sh" (there may be some errors left, I modify this script as I learn) :
#!/bin/bash
# expected environment : freshly installed archlinux, login : root.
echo "Are you connected to internet ? If not, please Ctrl+C and reload this script when connected"
echo "Otherwise, press ENTER to continue installation"
read var_dummy
echo "Creation of the user : please type in your user name :"
read var_username
useradd -u 1000 -g users -G audio,lp,storage,optical,video,wheel,games,power,network -d /home/$var_username/ -s /bin/bash -m $var_username
echo "You will now be asked to create the password for this user:"
passwd $var_username
# Add servers for pacman to find packages
cat >> /etc/pacman.conf << EOF
[multilib]
Include = /etc/pacman.d/mirrorlist
[archlinuxfr]
Server = http://repo.archlinux.fr/\$arch
[catalyst]
Server = http://catalyst.apocalypsus.net/repo/catalyst/\$arch
EOF
# Install packages
pacman -Syyu
pacman -S acpi acpid alsa-oss alsa-plugins alsa-utils catalyst catalyst-utils cpufrequtils cups dbus gstreamer0.10-base-plugins iptables laptop-mode-tools mesa net-tools netcfg ntp pm-utils rfkill rsync sudo ttf-dejavu vim wireless_tools xf86-input-evdev xorg-server xorg-utils xorg-xinit xorg-xinput yaourt conky gamin gnome-icon-theme gnome-keyring gvfs-afc network-manager-applet networkmanager slim slim-themes archlinux-themes-slim hicolor-icon-theme xfce4 xfce4-goodies
# If pacman failed, better stop the script here, and wait for a network connection
if [[ $?!=0 ]]
then
echo : failed to install packages - check your network connection, or review script
exit 1
fi
# Fix sound issue
cat > /home/$var_username/.asoundrc << EOF
pcm.!default{
type hw
card 1
device 0
ctl.!default{
type hw
card 1
device 0
EOF
chown $var_username:users /home/$var_username/.asoundrc
# Configure video settings for X to use Catalyst
if [[ ! -e /etc/X11/xorg.conf.d ]]
then
mkdir /etc/X11/xorg.conf.d
fi
cat > /etc/X11/xorg.conf.d/20-fglrx.conf << EOF
Section "Monitor"
Identifier "aticonfig-Monitor[0]-0"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
EndSection
Section "Device"
Identifier "aticonfig-Device[0]-0"
Driver "fglrx"
EndSection
EOF
sed -e 's/top_left/bottom_right/' -e '/alignment/i\double_buffer yes' -e '/CPU Usage/a\${color lightgrey}Temperatures:' -e '/CPU Usage/a\ CPU:$color ${hwmon 0 temp 1}°C' </etc/conky/conky.conf >/home/$var_username/.conkyrc
chown $var_username:users /home/$var_username/.conkyrc
# Install clickpad support
yaourt -S xf86-input-synaptics-clickpad
# Add french keyboard to X
sed '/MatchIsKeyboard/a\\tOption "XkbLayout" "fr"' </etc/X11/xorg.conf.d/10-evdev.conf >/etc/X11/xorg.conf.d/10-evdev.conf.new
mv -f /etc/X11/xorg.conf.d/10-evdev.conf.new /etc/X11/xorg.conf.d/10-evdev.conf
# Add new daemons, remove old ones, disable hwclock and remove netfs since I don't use it. add it if you need it
sed '/DAEMONS=/c\DAEMONS=(!hwclock dbus syslog-ng networkmanager laptop-mode acpid @alsa @cupsd @cpufrequtils ntpd crond)' </etc/rc.conf >/etc/rc.conf.new
mv -f /etc/rc.conf.new /etc/rc.conf
# Slim login manager ; change theme
mv /usr/share/slim/themes/archlinux-darch-grey /tmp/
mv /usr/share/slim/themes/default /tmp/
rm -r /usr/share/slim/themes/*
mv /tmp/archlinux-darch-grey /usr/share/slim/themes
mv /tmp/default /usr/share/slim/themes
sed '/^current_theme/c\current_theme archlinux-darch-grey' </etc/slim.conf >/etc/slim.conf
# XFCE login, and thunar launched as a daemon
sed '/^# exec/c\' </etc/skel/.xinitrc >/tmp/.xinitrc
sed '/^# .../c\' </tmp/.xinitrc >/home/$var_username/.xinitrc
cat >> /home/$var_username/.xinitrc << EOF
exec ck-launch-session startxfce4
thunar --daemon &
EOF
chown $var_username:users /home/$var_username/.xinitrc
# Boot to runlevel 5 now, and run slim then
sed -e 's/id:3/#id:3/' -e 's/#id:5/id:5/' -e 's|x:5:respawn:/usr/bin/xdm|#x:5:respawn:/usr/bin/xdm|' -e 's|#x:5:respawn:/usr/bin/slim|x:5:respawn:/usr/bin/slim|' </etc/inittab >/etc/inittab.new
mv -f /etc/inittab.new /etc/inittab
# Add colored prompt to user and root
sed '/^PS1/c\' </etc/skel/.bashrc >/root/.bashrc
cat >> /root/.bashrc << EOF
PS1='\[\e[0;32m\]\u@\h\[\e[m\] \[\e[0;35m\]\w\[\e[m\] \[\e[m\] \[\e[0;32m\]\t -\[\e[m\] \[\e[1;31m\]\$ \[\e[m\] '
EOF
cp /root/.bashrc /home/$var_username/.bashrc
chown $var_username:users /home/$var_username/.bashrc
# How does one do that automatically ?
# Manually add user to sudoers
EDITOR="vim" visudo
# Reboot, because it's quick and I'm too lazy to learn how to start all the daemons and others.
reboot
I can mount as a user, no password asked, with :
udisks --mount /dev/sdb2
but the GUI method tells me "not authorized".
"groups user" outputs :
lp wheel games network video audio optical storage power users
the command "ck-list-sessions" outputs :
Session2:
unix-user = '1000'
realname = ''
seat = 'Seat1'
session-type = ''
active = TRUE
x11-display = ':0.0'
x11-display-device = '/dev/tty7'
display-device = ''
remote-host-name = ''
is-local = TRUE
on-since = '2011-08-15T08:56:03.716103Z'
login-session-id = '1'
Session1:
unix-user = '1000'
realname = ''
seat = 'Seat2'
session-type = ''
active = FALSE
x11-display = ':0.0'
x11-display-device = ''
display-device = ''
remote-host-name = ''
is-local = TRUE
on-since = '2011-08-15T08:56:03.573029Z'
login-session-id = '1'
For those who don't have time to read the installation script, DBUS is in the DAEMONS list of rc.conf, and .xinitrc launches : exec ck-launch-session startxfce4
Any idea ?
Last edited by choubbi (2011-08-15 15:05:04)

Thanks a lot !
That worked !
I stumbled across this part of the wiki several times before, but didn't really understand so I had not tried.
If anyone's interested in the script, here's the corrected version :
#!/bin/bash
# expected environment : freshly installed archlinux, login : root.
echo "Are you connected to internet ? If not, please Ctrl+C and reload this script when connected"
echo "Otherwise, press ENTER to continue installation"
read var_dummy
echo "Creation of the user : please type in your user name :"
read var_username
useradd -u 1000 -g users -G audio,lp,storage,optical,video,wheel,games,power,network -d /home/$var_username/ -s /bin/bash -m $var_username
echo "You will now be asked to create the password for this user:"
passwd $var_username
# Add servers for pacman to find packages
cat >> /etc/pacman.conf << EOF
[multilib]
Include = /etc/pacman.d/mirrorlist
[archlinuxfr]
Server = http://repo.archlinux.fr/\$arch
[catalyst]
Server = http://catalyst.apocalypsus.net/repo/catalyst/\$arch
EOF
# Install packages
pacman -Syyu
pacman -S acpi acpid alsa-oss alsa-plugins alsa-utils catalyst catalyst-utils cpufrequtils cups dbus gstreamer0.10-base-plugins iptables laptop-mode-tools mesa net-tools netcfg ntp pm-utils rfkill rsync sudo ttf-dejavu vim wireless_tools xf86-input-evdev xorg-server xorg-utils xorg-xinit xorg-xinput yaourt conky gamin gnome-icon-theme gnome-keyring gvfs-afc network-manager-applet networkmanager slim slim-themes archlinux-themes-slim hicolor-icon-theme xfce4 xfce4-goodies
# If pacman failed, better stop the script here, and wait for a network connection
if [[ $?!=0 ]]
then
echo : failed to install packages - check your network connection, or review script
exit 1
fi
# Fix sound issue
cat > /home/$var_username/.asoundrc << EOF
pcm.!default{
type hw
card 1
device 0
ctl.!default{
type hw
card 1
device 0
EOF
chown $var_username:users /home/$var_username/.asoundrc
# Configure video settings for X to use Catalyst
if [[ ! -e /etc/X11/xorg.conf.d ]]
then
mkdir /etc/X11/xorg.conf.d
fi
cat > /etc/X11/xorg.conf.d/20-fglrx.conf << EOF
Section "Monitor"
Identifier "aticonfig-Monitor[0]-0"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
EndSection
Section "Device"
Identifier "aticonfig-Device[0]-0"
Driver "fglrx"
EndSection
EOF
sed -e 's/top_left/bottom_right/' -e '/alignment/i\double_buffer yes' -e '/CPU Usage/a\${color lightgrey}Temperatures:' -e '/CPU Usage/a\ CPU:$color ${hwmon 0 temp 1}°C' </etc/conky/conky.conf >/home/$var_username/.conkyrc
chown $var_username:users /home/$var_username/.conkyrc
# Install clickpad support
yaourt -S xf86-input-synaptics-clickpad
# Add french keyboard to X
sed '/MatchIsKeyboard/a\\tOption "XkbLayout" "fr"' </etc/X11/xorg.conf.d/10-evdev.conf >/etc/X11/xorg.conf.d/10-evdev.conf.new
mv -f /etc/X11/xorg.conf.d/10-evdev.conf.new /etc/X11/xorg.conf.d/10-evdev.conf
# Add new daemons, remove old ones, disable hwclock and remove netfs since I don't use it. add it if you need it
sed '/DAEMONS=/c\DAEMONS=(!hwclock dbus syslog-ng networkmanager laptop-mode acpid @alsa @cupsd @cpufrequtils ntpd crond)' </etc/rc.conf >/etc/rc.conf.new
mv -f /etc/rc.conf.new /etc/rc.conf
# Slim login manager ; change theme
mv /usr/share/slim/themes/archlinux-darch-grey /tmp/
mv /usr/share/slim/themes/default /tmp/
rm -r /usr/share/slim/themes/*
mv /tmp/archlinux-darch-grey /usr/share/slim/themes
mv /tmp/default /usr/share/slim/themes
sed '/^current_theme/c\current_theme archlinux-darch-grey' </etc/slim.conf >/etc/slim.conf
# XFCE login, and thunar launched as a daemon (note that the part with 'if [ -d /etc/X11/xinit/xinitrc.d ]" is not present, to avoid mounting problems when logged as regular user)
cat > /home/$var_username/.xinitrc << EOF
#!/bin/sh
# ~/.xinitrc
# Executed by startx (run your window manager from here)
exec ck-launch-session startxfce4
thunar --daemon &
EOF
chown $var_username:users /home/$var_username/.xinitrc
# Boot to runlevel 5 now, and run slim then
sed -e 's/id:3/#id:3/' -e 's/#id:5/id:5/' -e 's|x:5:respawn:/usr/bin/xdm|#x:5:respawn:/usr/bin/xdm|' -e 's|#x:5:respawn:/usr/bin/slim|x:5:respawn:/usr/bin/slim|' </etc/inittab >/etc/inittab.new
mv -f /etc/inittab.new /etc/inittab
# Add colored prompt to user and root
sed '/^PS1/c\' </etc/skel/.bashrc >/root/.bashrc
cat >> /root/.bashrc << EOF
PS1='\[\e[0;32m\]\u@\h\[\e[m\] \[\e[0;35m\]\w\[\e[m\] \[\e[m\] \[\e[0;32m\]\t -\[\e[m\] \[\e[1;31m\]\$ \[\e[m\] '
EOF
cp /root/.bashrc /home/$var_username/.bashrc
chown $var_username:users /home/$var_username/.bashrc
# How does one do that automatically ?
# Manually add user to sudoers
EDITOR="vim" visudo
# Reboot, because it's quick and I'm too lazy to learn how to start all the daemons and others.
reboot
The important part of the script to solve the problem is :
cat > /home/$var_username/.xinitrc << EOF
#!/bin/sh
# ~/.xinitrc
# Executed by startx (run your window manager from here)
exec ck-launch-session startxfce4
thunar --daemon &
EOF
chown $var_username:users /home/$var_username/.xinitrc

MacBook Air 2 isnt mounting usb drives

Hi. I've installed new OSX Lion onto my dad's MacBook Air 2nd gen. The new OS has a couple of bugs. 1st is the WiFi dropping, but i see it isn't only my problem, so i will hope Apple will fix this in 10.7.1 ASAP. But, we found out that MacBook isn't mounting any USB drives. When I plug flash drive into mac, it doesn't show it. I have to go into Disk Utility and manually mount it. I have to do this with every USB drive. Flash disk, memory card reader, hard drive, everything.
Anybody knows how to fix this?
Thanks.
(sorry for my bad english)

It was probably a SMC reset here:
Shift-Control-Option keys and the power button
http://support.apple.com/kb/HT3964
Or a PRAM reset
Command-Option-P-R keys
http://support.apple.com/kb/ht1379

How to mount usb drives in osx maverick?

Tried to connect external usb drive and got thel following message:
NTFS-3G could not mount /dev/rdisk5s1
at /Volumes/FreeAgent Drive because the following problem occurred:
/Library/Filesystems/fusefs.kext faailed to load - (libkern/kext) link error, check the system/kernel logs fir errors or try kextutil(8). the MacFUSE file system is not available (71)

Other t han Paragon NTFS for OS X which has been supported and works fine the others have had trouble since 10.7.3 era.
I use both Paragon NTFS and also their HFS+ for Windows. The demo is fully functional for 10 days and is under $20 (may be on sale too).
The software that some drive cases come with are often the source of trouble and best not to install, and to reformat the drive as well.
I believe Paragon has a utility to convert a drive to/from NTFS and HFS but check their site.
www.paragon-software.com

[SOLVED] Thunar (XFCE4) Does not Auto-mount USB Drive

After reading some posts related to USB auto-mounting in Thunar and yet still having the problem, I decided to post this. Thunar used to detect the USB drives and auto-mount them. These days (I GUESS after moving to systemd), It cannot do so. Still, there is the icon of USB drive on the left side panel, but when I click on it to browse it, I get this error:
Failed to mount "USB_LABLE".
Error when getting information for file
'/media/usbhd-sdc1': Transport endpoint is not connected.
I am still able to use "sudo mount..." and get the job done, but I would prefer the convenient way it used to work. Here are some information about my system:
command> cat ~/.xinitrc
if [ -d /etc/X11/xinit/xinitrc.d ]; then
for f in /etc/X11/xinit/xinitrc.d/*; do
[ -x "$f" ] && . "$f"
done
unset f
fi
exec startxfce4
command> loginctl show-session $XDG_SESSION_ID
Id=1
Timestamp=Sat, 2012-11-10 20:35:51 CET
TimestampMonotonic=34276379
DefaultControlGroup=name=systemd:/user/username/1
VTNr=7
Display=:0.0
Remote=no
RemoteUser=root
Service=slim
Leader=297
Audit=1
Type=x11
Class=user
Active=yes
State=active
KillProcesses=no
IdleHint=no
IdleSinceHint=0
IdleSinceHintMonotonic=0
command> systemctl status polkit
polkit.service - Authorization Manager
Loaded: loaded (/usr/lib/systemd/system/polkit.service; static)
Active: active (running) since ...
Docs: man:polkit(8)
Main PID: 305 (polkitd)
CGroup: name=systemd:/system/polkit.service
305 /usr/lib/polkit-1/polkitd --no-debug
command> dmesg
Attached scsi generic sg1 type 0
[sdc] 15470592 512-byte logical blocks: (7.92 GB/7.37 GiB)
[sdc] Write Protect is off
[sdc] Mode Sense: 23 00 00 00
[sdc] No Caching mode page present
[sdc] Assuming drive cache: write through
[sdc] No Caching mode page present
[sdc] Assuming drive cache: write through sdc: sdc1
[sdc] No Caching mode page present
[sdc] Assuming drive cache: write through
[sdc] Attached SCSI removable disk
I'd rather not edit the /etc/fstab; the way Thunar used to behave, was working with every new USB. I wonder if anybody can shed some lights.
Last edited by Shahab (2012-11-10 21:56:24)

The error looks suspiciously like one I had not so long ago and it turned out I still had an 11-media-by-label-auto-mount.rule in /etc/udev/rules.d. Once I removed that and rebooted everything was fine again.

Password required to mount usb drive in linux

Hi all. Hoping someone can help me with a problem I have trying to mount a drive connected to the USB port on my BT Homehub 4.
I have a Toshiba USB drive connected to the USB port on the BT Homehub 4. I can access this drive from any windows device by browsing to the homehub IP address \usb1.
When I try to mount the drive in linux on my Raspberry PI however, it asks for a password. I have tried the homhub admin password but this doesn't work.
I know that there is no permissions problem with the drive or PI because I was able to mount the same drive using the same mount command on the same Raspberry PI using the Homehub 3. The problem only occured when I upgraded from homehub 3 to homehub 4.
Any ideas?

Quite a bit of the old Speedtouch coding probably remains from the earlier home hubs, so you try "Administrator" (capital A) and a blank password, or use BT as the password.
There are some useful help pages here, for BT Broadband customers only, on my personal website.
BT Broadband customers - help with broadband, WiFi, networking, e-mail and phones.

Permissions / Sharing - Problem with USB Drives

Hi,
I suspect it's possible to do what I want, but not via the "easy" route. I'm very new to OS X, so hoping there's some more advanced functionality I haven't found yet.
This is what I want to do:
I have a USB drive connected to a Mac Mini running Snow Leopard. I have two users setup - one admin, one normal. I want only the local admin account to be able to access the files on the USB drive. I want the admin account to share the contents via the local network with my (Vista) laptop (which is setup with the same username / password as the admin account).
Problem I have is that whenever I try to apply any permissions to the USB drive, they are ignored. From what I've found on the internet, that is "by design" behaviour.
Are there any ways around this that people can suggest? Scripts? Other utilities? Other settings hidden away somewhere?
Beyond that, ideally I'd like to encrypt the whole drive as a TrueCrypt partition, mount the drive automatically when the laptop is detected (using a keyfile stored on the laptop), and then only let the laptop access the drive. But I'll accept a simple solution for now!
Thanks,
David

select the external drive in finder and enter command+i. in the resulting popup unlock the lock and uncheck the box to ignore ownership on this drive. permissions won't be ignored now. give your admin user read+write permissions to the drive and remove them from everybody else. that should do it.
I don't use TrueCrypt and can't comment on that.

Problem mounting usb stick with ISO installed on it [SOLVED]

I'm experiencing a weird problem regarding mounting usb sticks. Archlinux stopped auto-mounting usb sticks on my machine, but only those that contains an operating system. Empty or data usb sticks mount without problem.
A few weeks or month ago, I don't remember exactly, still everything was all right, but due to updates(?) usb sticks won't auto mount any more.
I have two arch partitions none of them mount usb sticks anymore with operating systems on them.
Today, I wanted to test a new operating system and write it on my usb stick, and of course I couldn't because arch didn't mount it. Luckily, on my other partitions a few old distos are still installed – I don't use them anymore for years- I booted them up and they mounted the usb stick without problem; it seems only the up-to-date system have problem handling the usb sticks. I have two Arch system installed on two different partitions, Gnome 3 and Enlightenment, both system are up to date.
Here are some info:
[mak@myhost ~]$ dmesg | grep -E "sd[a-z]"
[ 1.369732] sd 2:0:0:0: [sda] 234441648 512-byte logical blocks: (120 GB/111 GiB)
[ 1.369819] sd 2:0:0:0: [sda] Write Protect is off
[ 1.369821] sd 2:0:0:0: [sda] Mode Sense: 00 3a 00 00
[ 1.369872] sd 2:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 1.369924] sd 3:0:0:0: [sdb] 625142448 512-byte logical blocks: (320 GB/298 GiB)
[ 1.369982] sd 3:0:0:0: [sdb] Write Protect is off
[ 1.369985] sd 3:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[ 1.370070] sd 3:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 1.371642] sda: sda1 sda2 sda3 sda4 sda5 sda6
[ 1.372298] sd 2:0:0:0: [sda] Attached SCSI disk
[ 1.429438] sdb: sdb1 sdb2 sdb3 sdb4 sdb5 sdb6 sdb7 sdb8 sdb9
[ 1.430159] sd 3:0:0:0: [sdb] Attached SCSI disk
[ 2.244580] EXT4-fs (sda5): mounted filesystem with ordered data mode. Opts: (null)
[ 2.348031] systemd[1]: Expecting device dev-sdb8.device...
[ 2.362842] EXT4-fs (sda5): re-mounted. Opts: discard,data=ordered
[ 3.358252] Adding 2097148k swap on /dev/sdb8. Priority:-1 extents:1 across:2097148k FS
[ 5.458907] EXT4-fs (sda5): re-mounted. Opts: discard,data=ordered,commit=0
[ 52.120360] sd 6:0:0:0: [sdc] 15679488 512-byte logical blocks: (8.02 GB/7.47 GiB)
[ 52.121310] sd 6:0:0:0: [sdc] Write Protect is off
[ 52.121319] sd 6:0:0:0: [sdc] Mode Sense: 43 00 00 00
[ 52.122191] sd 6:0:0:0: [sdc] No Caching mode page present
[ 52.122199] sd 6:0:0:0: [sdc] Assuming drive cache: write through
[ 52.125825] sd 6:0:0:0: [sdc] No Caching mode page present
[ 52.125838] sd 6:0:0:0: [sdc] Assuming drive cache: write through
[ 52.126999] sdc: sdc1 sdc2
[ 52.131071] sd 6:0:0:0: [sdc] No Caching mode page present
[ 52.131084] sd 6:0:0:0: [sdc] Assuming drive cache: write through
[ 52.131093] sd 6:0:0:0: [sdc] Attached SCSI removable disk
[mak@myhost ~]$
[root@myhost mak]# fdisk -l
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.
Disk /dev/sda: 120.0 GB, 120034123776 bytes, 234441648 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: gpt
# Start End Size Type Name
1 2048 18431 8M BIOS boot parti BIOS boot
2 18432 56641478 27G Linux filesyste sda2
3 56641536 113264582 27G Linux filesyste sda3
4 113264640 169887686 27G Linux filesyste sda4
5 169887744 226510790 27G Linux filesyste sda5
6 226510848 234441614 3.8G Linux filesyste Spare
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.
Disk /dev/sdb: 320.1 GB, 320072933376 bytes, 625142448 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: gpt
# Start End Size Type Name
1 2048 18431 8M BIOS boot parti Bios boot
2 18432 54544383 26G Microsoft basic Partition 2
3 54544384 109070335 26G Linux filesyste Partition 3
4 109070336 163596287 26G Microsoft basic
5 163596288 218122239 26G EFI System Partition 5
6 218122240 272647630 26G Microsoft basic Partition 6
7 272648192 327174143 26G Linux filesyste Partition 7
8 327174144 331368447 2G Linux swap Swap
9 331368448 625142414 140.1G Linux filesyste Storage
Disk /dev/sdc: 8027 MB, 8027897856 bytes, 15679488 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x5fadc669
Device Boot Start End Blocks Id System
/dev/sdc1 * 0 4040703 2020352 0 Empty
/dev/sdc2 4036 38595 17280 ef EFI (FAT-12/16/32)
Disk /dev/sdc1: 2068 MB, 2068840448 bytes, 4040704 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x5fadc669
Device Boot Start End Blocks Id System
/dev/sdc1p1 * 0 4040703 2020352 0 Empty
/dev/sdc1p2 4036 38595 17280 ef EFI (FAT-12/16/32)
[root@myhost mak]#
[root@myhost mak]# blkid -o list -c /dev/null
device fs_type label mount point UUID
/dev/sda1 (not mounted)
/dev/sda2 ext4 (not mounted) 0a76a275-1798-495b-aa27-732626029de2
/dev/sda3 ext4 (not mounted) 0e9363ef-3791-409c-8db9-393385007689
/dev/sda4 ext4 (not mounted) 8f043c02-8b56-4689-a0ee-ed34ccc6f21f
/dev/sda5 ext4 / 82699b0e-8fe9-41e2-be13-65c798ed8a73
/dev/sda6 ext4 (not mounted) 3eaab6bf-2d05-4a7b-a6f7-8675e5f18723
/dev/sdb1 (not mounted)
/dev/sdb2 ext4 (not mounted) 17069311-9f14-4430-8298-be48194eb874
/dev/sdb3 ext4 (not mounted) 2e3b383d-3fa7-40df-b52d-c5d07caf252e
/dev/sdb4 ext4 (not mounted) 9d9b0656-d4ca-4efa-b6f8-1797bd4ead1f
/dev/sdb5 ext4 (not mounted) 05abf58a-ae6e-4377-9b3d-d6bacd92226d
/dev/sdb6 ext4 (not mounted) 8d7c6d55-dc47-471f-84f6-aae8864dfdd7
/dev/sdb7 ext4 (not mounted) b2155741-8f88-4063-bd1b-39b210004b17
/dev/sdb8 swap <swap> 97cf7cdf-299c-4e0d-a438-c8b79766699c
/dev/sdb9 ext4 (not mounted) 426648fd-98f5-4fb0-9114-bdbdfea9047c
/dev/sdc1 udf Sabayon GNOME (not mounted) 2013-07-29-13-08-13-27
/dev/sdc2 vfat (not mounted) CF68-C2B6
[root@myhost mak]#
Thanks for the help.
jmak
Last edited by jmak (2013-08-14 00:12:54)

cfr wrote:
What is sdc1p? Is that another USB stick? It seems to have an equally weird partition map.
By the way, you can't create an Arch USB bootable in EFI mode with dd. Obviously don't know about sabayon.
EDIT: Did you dd to the disk or to a partition? What command exactly did you use? Because it almost looks as if you did something like dd once and create one thing and then dd over the top of one of the partition so you've got a partition which itself has a partition map. Not sure that's possible but it sure looks weird.
I would wipe the key and start over.
I don't know what is that. It is a partition on the same usb stick, it was the “dd” that made that partition automatically, I guess. When I burn images into usb, I always use this command:
# dd bs=4M if=/path/to/archlinux.iso of=/dev/sdx && sync
I used this when burned Sabayon and it works perfectly.
The problem is that Arch can't auto-mount its own installation usb either. I put the arch install usb in and I get the following output:
[root@myhost mak]# blkid -o list -c /dev/null
device fs_type label mount point UUID
/dev/sda1 (not mounted)
/dev/sda2 ext4 (not mounted) 0a76a275-1798-495b-aa27-732626029de2
/dev/sda3 ext4 (not mounted) 0e9363ef-3791-409c-8db9-393385007689
/dev/sda4 ext4 (not mounted) 8f043c02-8b56-4689-a0ee-ed34ccc6f21f
/dev/sda5 ext4 / 82699b0e-8fe9-41e2-be13-65c798ed8a73
/dev/sda6 ext4 (not mounted) 3eaab6bf-2d05-4a7b-a6f7-8675e5f18723
/dev/sdb1 (not mounted)
/dev/sdb2 ext4 (not mounted) 17069311-9f14-4430-8298-be48194eb874
/dev/sdb3 ext4 (not mounted) 2e3b383d-3fa7-40df-b52d-c5d07caf252e
/dev/sdb4 ext4 (not mounted) 9d9b0656-d4ca-4efa-b6f8-1797bd4ead1f
/dev/sdb5 ext4 (not mounted) 05abf58a-ae6e-4377-9b3d-d6bacd92226d
/dev/sdb6 ext4 (not mounted) 8d7c6d55-dc47-471f-84f6-aae8864dfdd7
/dev/sdb7 ext4 (not mounted) b2155741-8f88-4063-bd1b-39b210004b17
/dev/sdb8 swap <swap> 97cf7cdf-299c-4e0d-a438-c8b79766699c
/dev/sdb9 ext4 /run/media/mak/426648fd-98f5-4fb0-9114-bdbdfea9047c 426648fd-98f5-4fb0-9114-bdbdfea9047c
/dev/sdc1 iso9660 ARCH_201305 (not mounted) 2013-05-01-07-12-33-00
[root@myhost mak]#
It doesn't appear in nautilus side panel.
Last edited by jmak (2013-08-13 02:44:45)

Rescuing a non-mounting USB drive...

Is there anything I can do to rescue an external USB drive that won't mount?
Yesterday the drive didn't show up on the desktop. This had happened infrequently before, and unplugging the USB cord and re-plugging it in always solved the problem. Drive would immediately mount. However, this time I got the device removal error when I unplugged it, despite the fact the drive was NOT mounted on the desktop. And now the drive still won't show up on the desktop. What can I do to fix this WITHOUT erasing the data onboard? I need to keep (rescue) the files on this drive if at all possible.
Troubleshooting info:
-drive doesn't show up on the desktop (can't access files at all)
-shows up in disk utility and passes disk verification ("appears to be okay")
-shows up correctly in the system profiler
-tried the other USB ports to rule out a port problem
-won't mount on my laptop either (G4, OS 10.4.7)
-spins up, sounds fine (no audible "dead-drive" noises)
-LaCie 160GB external USB drive on a G5, OS 10.4.7
Any help would be greatly appreciated!
G5 (2.0 gHz) Mac OS X (10.4.7)
PowerBook G4 Mac OS X (10.4.7)

Welcome to the Apple Forums.
If it's not mounting on the desktop, but gives you a "unplugged" warning, that's a good sign.
You can use Data Rescue to "see" the drive and recover files.
I would do that first.
Then I would search Apple main page for Onyx and run all the "Automation" followed by a reboot.
I would also seriously consider getting a external drive and learn how to clone my boot drive to it. You can hold option and boot from it, repair recover or simply reverse clone. It's also useful to isolate a problem in the OS or hard drive from the rest of the hardware. Not to mention saving your assets one day.
Some cloning tips:
1: Always repair permissions before and after a clone on all drives.
2: Always Disk Utility Erase w/Zero option all new drive one time before loading them up with data. No matter how long it takes. Drives get mishandled and the result is bad sectors which corrupt data. This Zeroing maps off those bad sectors, and supposedly if you get enough, you'll get a SMART warning and can return the new drive.
3: Don't do anything else, run anything else during a cloning process. Reboot to shutdown Dashboard if you don't want to shutdown the widgets.
4: Keep cloning a whole boot drive to boot drive clone, until you learn more and can experiment with partial cloning (copying)
5: Option boot from the clone and check it out carefully, you might need it someday. Run all of OnyX "Automation" to clean things up a bit, do a little OS optimization.
6: You need a firewire 400/800 drive to clone to. It's best to have two or more OS clones, just in case. If clone #1 gets hooked up to a infected system, C boot from the installer disk and Erase w/Zero all infected drives, disconnect from internet before hooking up clone #2 to reverse clone from.
7: Visit donation-ware Carbon Copy Cloners forums for advice and software.

Could not mount USB drive on Solaris 10 x86 system

Hi All,
I am having difficulty mounting a USB drive on Solaris 10 x86 system with the following different unsuccessful attempts:
# uname -a
SunOS venus 5.10 Generic_139556-08 i86pc i386 i86pc
# rmformat
Looking for devices...
     1. Volmgt Node: /vol/dev/aliases/cdrom0
        Logical Node: /dev/rdsk/c0t0d0s2
        Physical Node: /pci@0,0/pci-ide@4/ide@0/sd@0,0
        Connected Device: TEAC     DV-28E-V         1.AC
        Device Type: DVD Reader
     2. Logical Node: /dev/rdsk/c4t0d0s2
        Physical Node: /pci@0,0/pci108e,534b@2,1/storage@9/disk@0,0
        Connected Device: WD       My Book 1140     1007
        Device Type: Removable
     3. Volmgt Node: /vol/dev/aliases/rmdisk0
        Logical Node: /dev/rdsk/c4t0d0p0
        Physical Node: /pci@0,0/pci108e,534b@2,1/storage@9/disk@0,0
        Connected Device: WD       My Book 1140     1007
        Device Type: Removable
# svcs volfs
STATE STIME    FMRI
online Apr_13   svc:/system/filesystem/volfs:default# ls -lt /mnt
total 0
# mount -F pcfs /dev/dsk/c4t0d0p0:c /mnt
mount: I/O error
# mount -F pcfs /dev/rdsk/c4t0d0p0:c /mnt
mount: Block device required
# mount -F pcfs /dev/dsk/c4t0d0s2:c /mnt
mount: I/O error
# mount -F pcfs /dev/rdsk/c4t0d0s2:c /mnt
mount: Block device required
# fsck /dev/dsk/c4t0d0p0
Can't open /dev/rdsk/c4t0d0p0: I/O error
# fsck /dev/rdsk/c4t0d0p0
Can't open /dev/rdsk/c4t0d0p0: I/O error
# fsck /dev/dsk/c4t0d0s2
Can't open /dev/rdsk/c4t0d0s2: I/O error
# fsck /dev/rdsk/c4t0d0s2
Can't open /dev/rdsk/c4t0d0s2: I/O errorSecond try,
# svcadm disable volfs
# svcs volfs
STATE          STIME    FMRI
disabled       20:47:00 svc:/system/filesystem/volfs:default
# mount -F pcfs /dev/dsk/c4t0d0p0:c /mnt
mount: I/O errorLast try,
# mkdir /rmdisk
mkdir: Failed to make directory "/rmdisk"; File exists
# ls -lt /rmdisk
total 4
lrwxrwxrwx   1 root     nobody        16 Oct 1 2009 rmdisk0 -> ./unnamed_rmdik
drwxr-xr-x   2 root     nobody       512 Sep 30 2009 unnamed_rmdisk
# cd /rmdisk
# ls -lt
total 4
lrwxrwxrwx   1 root     nobody        16 Oct 1 2009 rmdisk0 -> ./unnamed_rmdik
drwxr-xr-x   2 root     nobody       512 Sep 30 2009 unnamed_rmdisk
# ls -lt unnamed_rmdisk
total 0
# ls -lt rmdisk0
lrwxrwxrwx   1 root     nobody        16 Oct 1 2009 rmdisk0 -> ./unnamed_rmdik
# df -h
Filesystem             size   used avail capacity Mounted on
/dev/dsk/c1t0d0s0      5.1G   4.0G   1.1G    78%    /
/devices                 0K     0K     0K     0%    /devices
ctfs                     0K     0K     0K     0%    /system/contract
proc                     0K     0K     0K     0%    /proc
mnttab                   0K     0K     0K     0%    /etc/mnttab
swap                   5.9G   984K   5.9G     1%    /etc/svc/volatile
objfs                    0K     0K     0K     0%    /system/object
sharefs                  0K     0K     0K     0%    /etc/dfs/sharetab
/usr/lib/libc/libc_hwcap2.so.1
                       5.1G   4.0G   1.1G    78%    /lib/libc.so.1
fd                       0K     0K     0K     0%    /dev/fd
swap                   5.9G   148K   5.9G     1%    /tmp
swap                   5.9G    32K   5.9G     1%    /var/run
/dev/dsk/c1t0d0s7      129G   1.7G   126G     2%    /export/home
# /etc/init.d/volmgt stop
# svcs volfs
STATE          STIME    FMRI
disabled       21:02:31 svc:/system/filesystem/volfs:default
# pwd
/rmdisk
# cd /
# ls -lt /rmdisk
total 4
lrwxrwxrwx   1 root     nobody        16 Oct 1 2009 rmdisk0 -> ./unnamed_rmdik
drwxr-xr-x   2 root     nobody       512 Sep 30 2009 unnamed_rmdisk
# /etc/init.d/volmgt st
# svcs volfs
STATE          STIME    FMRI
disabled       21:02:31 svc:/system/filesystem/volfs:default
# /etc/init.d/volmgt start
volume management starting.
# svcs volfs
STATE          STIME    FMRI
online         21:04:44 svc:/system/filesystem/volfs:default
# svcs volfs
# mount | grep rmdisk
# pwd
# ls -lt /rmdisk
total 4
lrwxrwxrwx   1 root     nobody        16 Oct 1 2009 rmdisk0 -> ./unnamed_rmdik
drwxr-xr-x   2 root     nobody       512 Sep 30 2009 unnamed_rmdisk
# ls -lt /rmdisk/unnamed_rmdisk
total 0
# iostat -En
c0t0d0           Soft Errors: 3 Hard Errors: 0 Transport Errors: 0
Vendor: TEAC     Product: DV-28E-V         Revision: 1.AC Serial No:
Size: 0.00GB <0 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 3 Predictive Failure Analysis: 0
c1t0d0           Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
Vendor: HITACHI Product: HUS1514SBSUN146G Revision: SA04 Serial No: 0921B2Y3PC
Size: 146.81GB <146810535936 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0
c1t1d0           Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
Vendor: HITACHI Product: HUS1514SBSUN146G Revision: SA04 Serial No: 0921B2Z5NC
Size: 146.81GB <146810535936 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0
c4t0d0           Soft Errors: 21 Hard Errors: 0 Transport Errors: 0
Vendor: WD       Product: My Book 1140     Revision: 1007 Serial No:
Size: 2000.37GB <2000365289472 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 21 Predictive Failure Analysis: 0
#This is a working production system with 2 146.81GB mirrored hard disks. There is no disk error for either local or external 2TB Western Digital USB disks that works on Windows 7 or XP.
Any idea on what else to look for?
Thanks in advance,
Jack
Edited by: 797805 on 6/06/2012 04:48

Hi All,
Looks like it was a driver / incompatibility / unsupported issue since 2 other much smaller USB keys (Lexar USB Flash Drive – 32GB, SanDisk Cruzer Colors – 4GB) were successfully mounted automatically by volfs service as follows:
# df -h
Filesystem             size   used avail capacity Mounted on
/dev/dsk/c1t0d0s0      5.1G   4.0G   1.1G    78%    /
/dev/dsk/c1t0d0s7      129G   1.7G   126G     2%    /export/home
/vol/dev/dsk/c3t0d0/unnamed_rmdisk#1:c   3.7G   2.4G   1.3G    65%    /rmdisk/unnamed_rmdisk#1
/vol/dev/dsk/c2t0d0/unnamed_rmdisk:c    29G    96K    29G     1%    /rmdisk/unnamed_rmdiskIt also appears that the Device status of Not Ready from “iostat –En” below may not be correct either since both smaller drives are working fine:
# iostat -En
c4t0d0           Soft Errors: 23 Hard Errors: 0 Transport Errors: 0
Vendor: WD       Product: My Book 1140     Revision: 1007 Serial No:
Size: 2000.37GB <2000365289472 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 23 Predictive Failure Analysis: 0
c2t0d0           Soft Errors: 7 Hard Errors: 0 Transport Errors: 0
Vendor: Lexar    Product: USB Flash Drive Revision: 1100 Serial No:
Size: 31.41GB <31406948352 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 7 Predictive Failure Analysis: 0
c3t0d0           Soft Errors: 60 Hard Errors: 8 Transport Errors: 0
Vendor: SanDisk Product: Cruzer Colors+   Revision: 8.02 Serial No:
Size: 4.02GB <4022337024 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 8 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0In other word, the same question remains on whether it is possible to install a driver to overcome this issue and where to such driver?
It is necessary to install additional driver that came with the disk on Windows XP platform. However,
Thanks again,
Jack

Problem with USB drive not writing/freezing on unmount.

I have a sandisk cruzer blade USB drive, which I have used for the past hours extensively. At one point, I couldn't manage to write data to it. It acted like it had, but it didn't, as it silently remounted as readonly. I solved this by remounting as rw and retried.
Now, when using the same drive, after writing around 2 GiB worth of data to it (creating files), and attempting to unmount, the unmount command freezes for a long period of time. I check dmesg and it says its frozen. So I open up another tab to try and rescue the writes I made by typing sync. This also freezes and generates dmesg messages.
As I'm typing this the commands seemed to have succeeded, but I'm wondering, what causes these problems? Is the problem known?
dmesg output:
[ 1440.339510] INFO: task umount:1540 blocked for more than 120 seconds.
[ 1440.339518] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1440.339523] umount D ffff88021da81950 0 1540 1539 0x00000004
[ 1440.339531] ffff8801d9ad7c70 0000000000000082 0000000000014500 ffff8801d9ad7fd8
[ 1440.339538] ffff8801d9ad7fd8 0000000000014500 ffff88021da81950 ffff88022ec94500
[ 1440.339545] ffff8801d9ad7bc0 ffffffff81091995 ffff88022211c380 0000000000000002
[ 1440.339551] Call Trace:
[ 1440.339565] [<ffffffff81091995>] ? check_preempt_curr+0x85/0xa0
[ 1440.339571] [<ffffffff8108ecfa>] ? ttwu_stat+0x9a/0x110
[ 1440.339579] [<ffffffff81093a0c>] ? try_to_wake_up+0x1fc/0x2c0
[ 1440.339586] [<ffffffff814e1029>] schedule+0x29/0x70
[ 1440.339593] [<ffffffff814dd909>] schedule_timeout+0x219/0x290
[ 1440.339599] [<ffffffff8107b746>] ? __queue_work+0x136/0x390
[ 1440.339606] [<ffffffff814e03c3>] wait_for_common+0xd3/0x180
[ 1440.339612] [<ffffffff81093b10>] ? wake_up_process+0x40/0x40
[ 1440.339617] [<ffffffff814e048d>] wait_for_completion+0x1d/0x20
[ 1440.339625] [<ffffffff811c8bd0>] writeback_inodes_sb_nr+0x80/0xb0
[ 1440.339648] [<ffffffff811c8c25>] writeback_inodes_sb+0x25/0x30
[ 1440.339655] [<ffffffff811cdedd>] sync_filesystem+0x2d/0xa0
[ 1440.339662] [<ffffffff811a1cb0>] generic_shutdown_super+0x30/0xe0
[ 1440.339668] [<ffffffff811a1f97>] kill_block_super+0x27/0x70
[ 1440.339678] [<ffffffff811a22fd>] deactivate_locked_super+0x3d/0x60
[ 1440.339684] [<ffffffff811a28e6>] deactivate_super+0x46/0x60
[ 1440.339689] [<ffffffff811bdeaf>] mntput_no_expire+0xef/0x150
[ 1440.339695] [<ffffffff811bf0b1>] SyS_umount+0x91/0x3b0
[ 1440.339701] [<ffffffff814ea5dd>] system_call_fastpath+0x1a/0x1f
[ 1560.250364] INFO: task umount:1540 blocked for more than 120 seconds.
[ 1560.250371] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1560.250375] umount D ffff88021da81950 0 1540 1539 0x00000004
[ 1560.250383] ffff8801d9ad7c70 0000000000000082 0000000000014500 ffff8801d9ad7fd8
[ 1560.250390] ffff8801d9ad7fd8 0000000000014500 ffff88021da81950 ffff88022ec94500
[ 1560.250397] ffff8801d9ad7bc0 ffffffff81091995 ffff88022211c380 0000000000000002
[ 1560.250403] Call Trace:
[ 1560.250416] [<ffffffff81091995>] ? check_preempt_curr+0x85/0xa0
[ 1560.250422] [<ffffffff8108ecfa>] ? ttwu_stat+0x9a/0x110
[ 1560.250429] [<ffffffff81093a0c>] ? try_to_wake_up+0x1fc/0x2c0
[ 1560.250435] [<ffffffff814e1029>] schedule+0x29/0x70
[ 1560.250442] [<ffffffff814dd909>] schedule_timeout+0x219/0x290
[ 1560.250448] [<ffffffff8107b746>] ? __queue_work+0x136/0x390
[ 1560.250454] [<ffffffff814e03c3>] wait_for_common+0xd3/0x180
[ 1560.250460] [<ffffffff81093b10>] ? wake_up_process+0x40/0x40
[ 1560.250465] [<ffffffff814e048d>] wait_for_completion+0x1d/0x20
[ 1560.250473] [<ffffffff811c8bd0>] writeback_inodes_sb_nr+0x80/0xb0
[ 1560.250493] [<ffffffff811c8c25>] writeback_inodes_sb+0x25/0x30
[ 1560.250499] [<ffffffff811cdedd>] sync_filesystem+0x2d/0xa0
[ 1560.250506] [<ffffffff811a1cb0>] generic_shutdown_super+0x30/0xe0
[ 1560.250513] [<ffffffff811a1f97>] kill_block_super+0x27/0x70
[ 1560.250522] [<ffffffff811a22fd>] deactivate_locked_super+0x3d/0x60
[ 1560.250528] [<ffffffff811a28e6>] deactivate_super+0x46/0x60
[ 1560.250533] [<ffffffff811bdeaf>] mntput_no_expire+0xef/0x150
[ 1560.250538] [<ffffffff811bf0b1>] SyS_umount+0x91/0x3b0
[ 1560.250545] [<ffffffff814ea5dd>] system_call_fastpath+0x1a/0x1f
[ 1560.250550] INFO: task sync:1547 blocked for more than 120 seconds.
[ 1560.250553] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1560.250556] sync D ffffffff811cdd00 0 1547 985 0x00000000
[ 1560.250561] ffff8801be2e1e68 0000000000000086 0000000000014500 ffff8801be2e1fd8
[ 1560.250567] ffff8801be2e1fd8 0000000000014500 ffff8801c1335460 ffff8801be2e1e70
[ 1560.250573] ffffffff811326ab ffff8801be2e1de0 ffff88020bdbc280 0000000000000080
[ 1560.250579] Call Trace:
[ 1560.250586] [<ffffffff811326ab>] ? filemap_fdatawait_range+0x17b/0x1a0
[ 1560.250594] [<ffffffff811cdd00>] ? generic_write_sync+0x60/0x60
[ 1560.250599] [<ffffffff814e1029>] schedule+0x29/0x70
[ 1560.250604] [<ffffffff814e1d85>] rwsem_down_read_failed+0xc5/0x120
[ 1560.250610] [<ffffffff81292744>] call_rwsem_down_read_failed+0x14/0x30
[ 1560.250616] [<ffffffff814dffa7>] ? down_read+0x17/0x20
[ 1560.250620] [<ffffffff811a34cc>] iterate_supers+0x9c/0x110
[ 1560.250628] [<ffffffff811cdf85>] sys_sync+0x35/0x90
[ 1560.250633] [<ffffffff814ea5dd>] system_call_fastpath+0x1a/0x1f

mr.MikyMaus wrote:You do know that flash memories have limited number of write cycles, right?
Limited how? Like all storage devices have (in other words, after a while they break)?
The drive is completely new, like 3 weeks or something.

Problems mounting fat drives

Whenever I try and mount either my floppy drive or my memory stick in my clie I am told that there is either a bad block or wrong file type.
I have fat (vfat) compiled into the kernel, but it still doesn't work. I'm confident there isn't a problem with the drives.
Can anyobne suggest anything? This is quite frustrating...

Check dmesg to see if the stick is recognized as /dev/sda. If it is, run fdisk /dev/sda to see what partitions are on it.
If there are several partitions, mount the stick with
mount -t vfat /dev/sda /mnt/usbstick
I used to mount my stick with /dev/sda (even though it held 4 different partitions! Found that out afterwards), but today I had to repartition and format the thing, so I made one big (256MB) FAT16 partition which I now have to mount with /dev/sda1.

Problems mounting USB drives

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