10.5.2 mount USB-Drive read only while booting

Hi,
since the update to 10.5.2 my usb drive is always mounted read only if it is connected while booting.
If I connect it after booting or unmount and remount it after booting everything works fine.
Any ideas?
thx
Bapf
Message was edited by: Bapf

strangely enogh ... the last two boots it worked again
I hope it stays that way

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Pcmanfm is "Not Authorized" to mount usb drives

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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

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Select the drive on your desktop and hit command+i. This brings up an information panel.
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Cheers.

[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

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)

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?

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.

External hard drive read only unless you unplug and replug in

I've got an external firewire hd (fw 400 with an adapter) connected to a MacBook Pro 2009 running OS X 10.6.2. It's been working flawlessly until recently. I'm not sure what happened and I don't think it's the result of any system upgrade or modification, but now, at startup, the drive shows up as read-only. But, if I eject, unplug, and replug it in, or eject, turn if off, and back on, it mounts correctly as read/write. Get Info on the drive shows that it should be read/write. I've tried repairing permissions and doing a repair disk from Disk Utility, but no problems are found.
Any idea on what the problem/solution is?

I'm not sure where the issue is but you do you do have it running. One thing you can do to see if it's the computer or the drive is to get another FW drive and connect it and see if it works. If the Mac automatically detects it (like it should!) then that tells you it something with the original drive and if it doesn't then it's obviously something with the MBP. If you take it to an Apple Store and explain the issue they can probably provide another drive to test it out.
If it turns out to be the drive (that's my guess) then it might be a power supply problem or the FW connection, a hunch tells me it would be the power supply.
At least you are finally making progress and can use the drive though!

Time Machine - External Hard Drive Read only error

Just recently got a Iomega 1TB MiniMax FireWire 800 USB 2.0 Desktop Hard Drive and used Time Machine to backup my computer. This was my first time using Time Machine and it successfully backed up 350 GBs. It continued to do backups every hour. When I turned my computer off and then turned it on the next day Time Machine wouldn't allow me to do a backup because it said the hard drive was read only. When I checked info it said it was read/write. I used disc utility to verify disc it said it could not verify disc do a disc repair. Disc repair failed and it said reformat disc. I erased the hard drive tried again and I got the same error message. The hard drive is formatted Mac OS Extended (Journaled). I searched this forum and the trouble shooting links and couldn't find anything on how to correct this. Any help on this problem would be appreciated.

See the following:
What to do if Time Machine reports you don't have permission
This was posted in the Apple Discussions by V.K. I have only modified it slightly to be more generic.
The problem seems to be that 10.5.6 changes permissions on a file so that even the root user doesn't have write peivileges. I have no idea why they did this. The workaround suggested in [an]other post will probably work, too, but i did something less drastic. Instead of deleting the file I changed permissions on it, and it worked just fine. An added benefit is that the permission change seems to stick, so you don't have to delete the file every time you change a drive.
[Open the Terminal application in your Utilities folder. At the prompt [enter] the following command:
sudo chmod 644 /volumes/"TM drive name"/.xxxxxxxxxxxx
The name of the file .xxxxxxxxxxxx is based on the MAC address of your computer and will be different for every computer. Put the name of the TM drive in the above and keep the quotes.
You'll have to enter your admin password (which you won't see) which is normal.
This was edited by Kappy just for cleanup.
Enable Finder to Show Invisible Files and Folders
Open the Terminal application in your Utilities folder. At the prompt enter or paste the following command line then press RETURN.
defaults write com.apple.finder AppleShowAllFiles TRUE
To turn off the display of invisible files and folders enter or paste the following command line and press RETURN.
defaults write com.apple.finder AppleShowAllFiles FALSE
Alternatively you can use one of the numerous third-party utilities such as TinkerTool or ShowHideInvisibleFiles - VersionTracker or MacUpdate.
Also, see User Tips for Time Machine for help with TM problems. Also you can select Mac Help from the Finder's Help menu and search for "time machine" to locate articles on how to use TM. See also Mac 101- Time Machine.
Message was edited by: Kappy

10.5.2 mount USB-Drive read only while booting

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