When is it safe to unplug a mounted usb drive?

I'm making a headless media player that I want to automatically play music off of any usb stick or hard drive plugged into it. Because it doesnt have a monitor users wont be able to unmount the drive. If the drive is mounted read only is there any possibility of corrupting the data?

alphaniner wrote:
I would think it would be safe if mounted ro. Drive caching is for write, not read AFAIK.
But you should go the extra mile: have music files copied to ramdisk if space is available, then unmount the device automatically. Preempt the reset button to properly unmount any device. Better yet, if the mobo has any serial ports, they could be used to great effect...
Only 126 mb of ram, so that's a no :-), right now I'm using an old pentium 3 dell but I'll use a raspberry pi once I get my hands on one. What were you thinking of for the serial, an unmount drives button? Can you point me the right way for serial port programming?

Similar Messages

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

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.

[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

[SOLVED] Mounting USB drive in Gnome

I just got a brand new music player (USB, HD-based) and try to mount it in Gnome. Of course i want it to automount, and tried to enable the gnome-volume-manager, which i finally managed. But nothing happens when i plug in the USB. I also created a /media directory (i hoped it would like to mount there...).
Then i searched these forums and found http://bbs.archlinux.org/viewtopic.php?t=7572, which i followed. Still without any success. Now i have no clue, whatsoever...
(It works of course in M$ 'dos)

make sure to modprobe usb-storage and check your logs to see what /dev entry is connected to your usb drive. add that to fstab and gnome-volume-manager should work if you followed iphitus' advice above.

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

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

Mounting USB Drive in Single user mode

My Intel Imac fails to boot up. fsck -y fails too ... can't think of any other way to get my data out ...
I am left with the only option to copy my data into my usb drive in the terminal mode .
But I am unable to mount my USB drive. I also need to know the mount point. can anyone provide me with help.

The mountpoint can be anything you want. The tricky part is figuring out the device your drive is using. I don't know for sure (can't test it right now), but dmesg or one of the system logs might have that information in it if you boot to SUM with the external drive attached. The logs also might have a record of what device this drive used in the past when connected. It will likely use the same device every time.
If not, you can guess. I have seen one of my external disks mount using the device disk1s2. If I were to attach that to my machine in SUM, I could then mount it like this:
mount_hfs /dev/disk1s2 /Volumes/recover
where the mount point /Volumes/recover is something I created (i.e. just a simple "mkdir /Volumes/recover"). This could be anything you want.

Mounting USB drive as regular user (with ntfs-3g)

Hello. First of all, I not asking to do the homework for me, rather is someone can help me understand why I can't get this work.
I spent the last night trying to figure how mount an USB drive as a regular user, using ntfs-3g. I read the related wiki entries and researched quite a lot in the forums. I came up with this:
fstab:
# /etc/fstab: static file system information
# <file system> <dir> <type> <options> <dump> <pass>
devpts /dev/pts devpts defaults 0 0
shm /dev/shm tmpfs nodev,nosuid 0 0
#/dev/cdrom /media/cd auto ro,user,noauto,unhide 0 0
#/dev/dvd /media/dvd auto ro,user,noauto,unhide 0 0
#/dev/fd0 /media/fl auto user,noauto 0 0
/dev/sda1 / ext3 defaults,noatime 0 1
/dev/sda2 /home ext3 defaults,noatime 0 2
/dev/sda3 swap swap defaults 0 0
/dev/sdb1 /mnt/usb ntfs-3g noauto,uid=0,gid=0,noatime,umask=000, 0 0
I created a ntfsuser group, added my user to that group and trim permissions to the ntfd-3g executable (link in this post). That allows me mount the partition as root and read/write as regular user. It works, so (i think) not big deal here.
However if I add user to the mount options the following error shows up:
Mount is denied because setuid and setgid root ntfs-3g is insecure with the
external FUSE library. Either remove the setuid/setgid bit from the binary
or rebuild NTFS-3G with integrated FUSE support and make it setuid root.
Please see more information at http://ntfs-3g.org/support.html#unprivileged
What bugs me the most is I don't understand why I can't mount as regular user when the user option is set in the fstab. Shouldn't that allow regular users to mount and unmount? Is not like that I'm mounting and dismounting USB drives every 5', but I would like to get this done because I know it can be done
Sorry for asking such trivial question, but I sense that I'm missing something really stupid and I just can't figure what it is

Beware of the double post! (+1)
Ok, I decided I'd get this to work, although the method and the implications it could have might not seem pretty to some. There are certain conditions for a user to mount any ntfs volume with ntfs-3g, I will name them here:
1. ntfs-3g with integrated fuse support. You'll get this by:
1A. Removing ntfs-3g and fuse from your system if you have them installed as separate packages, so do this as root:
pacman -Rn ntfs-3g
pacman -Rn fuse
Now you can install the new package.
1B. Getting a modified version of the PKGBUILD found in that AUR link previously mentioned by me, here's mine:
# Maintainer: Gula <gulanito.archlinux.org>
# Slightly modified by anderfs
# Don't forget to setuid-root for the ntfs-3g binary after you install this
pkgname=ntfs-3g-fuse-internal
pkgver=2010.5.16
pkgrel=1
pkgdesc="Stable read and write NTFS driver (whit internal fuse suport)"
url="http://www.tuxera.com"
arch=('i686' 'x86_64')
license=('GPL2')
depends=('glibc')
conflicts=('ntfs-3g')
makedepends=('pkgconfig')
options=('!libtool')
source=(http://www.tuxera.com/opensource/ntfs-3g-${pkgver}.tgz
http://aur.archlinux.org/packages/ntfs-3g-fuse-internal/ntfs-3g-fuse-internal/25-ntfs-config-write-policy.fdi)
sha1sums=('895da556ad974743841f743c49b734132b2a7cbc'
'200029f2999a2c284fd30ae25734abf6459c3501')
build() {
cd "${srcdir}/ntfs-3g-${pkgver}"
ac_cv_path_LDCONFIG=/bin/true ./configure --prefix=/usr \
--with-fuse=internal --disable-static || return 1
make || return 1
package() {
cd "${srcdir}/ntfs-3g-${pkgver}"
make DESTDIR="${pkgdir}" install || return 1
ln -s /bin/ntfs-3g "${pkgdir}/sbin/mount.ntfs" || return 1
install -m755 -d "${pkgdir}/usr/share/hal/fdi/policy/10osvendor"
install -m644 "${srcdir}/25-ntfs-config-write-policy.fdi" "${pkgdir}/usr/share/hal/fdi/policy/10osvendor/" || return 1
Save this as PKGBUILD, preferrably in an empty directory so it doesn't clutter things up when you build it.
1C. Now go to the directory where you saved it and do this as a regular user:
makepkg PKGBUILD
After that's done, you'll get a package called ntfs-3g-fuse-internal-2010.5.16-1-i686.pkg.tar.xz, or something similar.
1D. Install that package as root:
pacman -U ntfs-3g-fuse-internal-2010.5.16-1-i686.pkg.tar.xz
If all went well you now have ntfs-3g compiled with integrated fuse support.
2. The ntfs-3g version must be higher than 1.2506, this is already covered, the package installed from AUR matches this requirement.
3. The ntfs-3g binary must be set to setuid-root, to accomplish this you shall do the following as root:
chown root $(which ntfs-3g)
chmod 4755 $(which ntfs-3g)
I used 4750 instad of 4755, I guess that last bit can be a matter of personal taste as long as it isn't something obnoxious like "7".
4. The user must have the right access to the volume. Okay, this is the ugly part, volumes are owned by root and managed by the disk group with permissions brw-rw----, this means you have to add any users you want mounting this volume to the disk group.
4A. So, do this as root:
gpasswd -a [user] disk
Where [user] is obviously the name of whichever user you're adding to the disk group, do this for any user you want mounting this volume.
Any users currently logged in will have to log out and back in for these change to take effect, this most likely includes you.
4B. Now that you logged back in, try this:
groups
One of the groups listed should be disk, if it's not there you didn't completely log out of all open sessions.
5. The user must have the right permissions/access to the mount point. For a user to be able to mount something to a mount point, that user needs to have read permission (pretty self-explanatory), write permission (so the user can make any changes to the sub-structure of the mount point), and execute permission (so the user can change-dir to that mount point) to it. Mount points can be anywhere, so this really depends where you're mounting.
In my case, I'm mounting these volumes on certain directories under /mnt/, for example /mnt/example. If you're mounting stuff there, you might as well take advantage of the fact your "mounting user" is already in the group disk, and do the following as root:
chgrp disk /mnt/example
chmod 774 /mnt/example
Now users in the disk group will be able to manage these mount points.
6. Mount it. That's it, you should now be able to mount ntfs volumes as an "unpriveleged enough" user. Here's an example of what you'd have to put in /etc/fstab:
UUID=XXXXYYYYXXXXYYYY /mnt/example ntfs-3g noauto,noatime,user,uid=0,gid=6,fmask=137,dmask=027,rw 0 0
uid=0 means root will be the owner of this mount-point and anything in it after it's mounted. This is due to the fact that even though users might own their mountpoints and have rwx permissions on them, you might still not want them to write to the mounted ntfs volumes. Remove this if you want them to be able to write to the volume.
gid=6 means this will be managed by the disk group in my system. Perhaps the disk group has a different id in your system, run "id root" to find out, as root usually is part of this group.
fmask = 137 means the owner (root) can do anything with files in this volume except executing files. Group members (disk) can only read files here, not create or execute them. And other users can't do anything in this volume.
dmask = 027 means the owner can do anything with directories (execute here is needed to chdir), users can't write directories but they can read or execute in them (once again, needed by 'cd'), and finally other users still don't have any access.
You can use whichever fmask and dmask makes sense to you, or use an umask instead.
Last edited by anderfs (2010-07-15 11:34:48)

Mount USB drive

I am trying to mount a USB drive, using this command:
mount -t usbfs /dev/sdb1 /usb
When I list the contents of /usb it says: 001 002 devices
What am I doing wrong?

either the filesystem is corrupted or it's not a fat filesystem (anymore)
try, as moetunes suggests, mounting without -t option and see if mount can mount on it's own
and if not please give us the output for fdisk -l /dev/sdb

Automatically Mount USB Drive on TC

I have a USB drive attached to my TC and I use it for my itunes library. This works fine but when I use itunes on my macbook pro at home I must manually mount the drive. I would like to have the drive automatically mount whenever I am using my home network.
Is there any way to do this?

johnvic, welcome to the discussions!
Open System Preferences, click on Accounts and then click on the Login Items tab.
Click the + (plus) button at the bottom of the Login box and navigate to select your Time Capsule disk. Click Add.
Time Capsule will open automatically the next time you restart your computer.

[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.

Mounting USB drive over network

Hello,
I'm working through an issue that I don't quite understand, I think. Here's my setup.
iBook G3 running 10.4.7
iMac G4 running 10.4.7
Airport Express (both computers connecting wirelessly)
My Book external USB 250Gb Drive connected to the iMac G4
I'm trying to access the My Book drive with the iBook using the "Connect to Server" selection on the "Go" finder menu. I type in the local IP of the iMac and it asks me how I want to connect. (Guest or Registered)
I choose registered, and use the username and password of the admin account on the iMac. It presents me with the user folder and the hard drive volume as well as any disk images that I might have loaded (a downloaded .dmg, for instance) but the USB drive never shows up in the list of volumes to mount.
I downloaded Share Points and added the drive to the list of shared volumes, then restarted the iMac, but it still does not come up in the list when I try connecting to the iMac from the iBook. I'm not real confident that I have Share Points set up correctly, I haven't spent enough time to wrap my head around exactly what that software is trying to do.
Any ideas as to where I've gone wrong?
Is there a better way to go about doing this?
It's a hassle to switch the drive back and forth to either machine as I want to work on one or the other. All the cords limit mobility on the laptop as well.
I should like to leave the drive connected to the iMac and use the files with either computer.

trying checking or unchecking the "Ignore Ownership
on this volume" box when you "get info" (file menu)
on the firewire drive.
I don't seem to have this option. It sounded promising, nonetheless... The Disk Utility also doesn't mention this.
Does it matter that it's a FAT32 volume? I hadn't thought to include this initially... If it does, and it's not possible, then I can give up, as I don't have another drive to back up to and reformat the one I'd like to use. Perhaps this will result in finally getting a dreamy LaCie drive... =)

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.

Unplugging headphone disconnect usb drives and sd slot causing data lost

Hi i'm Michele from Italy
On my macbook pro, when i unplug headphone and there is a usb drive connected i have problems an system give me message of unsure eject and sometimes the drive became unreadble forcing me to reformat.
Same problem with sd slot but my sd card became corrupted and i can not use it anymore.
Very bad first experience for me just caming from windows/pc notebook.
Michele
[email protected]

Welcome to Apple Discussions!
It sounds like you have been unplugging these before ejecting them. To eject something, click on Finder at the lower left of your display. In the Finder window, you will see your USB device with a symbol to the right that looks like a triangle with a line under it. Click on this symbol to eject the device, and once the icon has disappeared from the desktop and the drive has spun down, you can safely turn off the device and unplug it.
Hope this helps!

When is it safe to unplug a mounted usb drive?

Similar Messages

Maybe you are looking for