[SOLVED] USB unmount problems (HAL related?)

lpallard · 07-09-2011, 11:49 AM

OK the up[grade is "complete"! I can now boot (I used the huge kernel instead of the generic)... I believe the generic does not support reiserfs out f the box...

Now what leaves me clueless is the fact that after reboot, I am back in XFCE 4.4.... I however upgraded everything, including the package xfce-4.6 that is installed.... why am I still using 4.4?

markush · 07-09-2011, 12:11 PM

Probably you're using the old configuration in your /home directory and there is something "disordered". What you could try is the following, rename the directory for the configuration of xfce in your ~/ directory before using startx. You'll have a fresh configuration then, look if there's a change in XFCE. I would recommend to make the whole configuration new and if you cannot seem to find out how to do it, you can look at the old (renamed) configuration.

Markus

lpallard · 07-09-2011, 10:07 PM

I confirm I am using the new XFCE 4.6... I dont know why but the help (XFCE help) reported version 4.4.... the title of the Help page is

Xfce 4.4 Documentation

and points to

Code:

file:///usr/share/xfce4/doc/C/index.html

Maybe they forgot to change this... Anyways, not a big deal..

Now back on initial topic, I still cant use a USB stick unless I am root.... Same again.

Any more ideas? Can I somewhere get some more infor for you guys? Some logs?

when connecting the USB stick, a tail -f /var/log/messages reveals:

Code:

Jul  9 23:07:53 xpsm1730 kernel: [37891.373611] usb 2-2.3: new high speed USB device using ehci_hcd and address 8
Jul  9 23:07:53 xpsm1730 kernel: [37891.449975] usb 2-2.3: New USB device found, idVendor=0781, idProduct=5151
Jul  9 23:07:53 xpsm1730 kernel: [37891.449984] usb 2-2.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Jul  9 23:07:53 xpsm1730 kernel: [37891.449991] usb 2-2.3: Product: Cruzer Micro
Jul  9 23:07:53 xpsm1730 kernel: [37891.449996] usb 2-2.3: Manufacturer: SanDisk
Jul  9 23:07:53 xpsm1730 kernel: [37891.450000] usb 2-2.3: SerialNumber: 1738131D78533904
Jul  9 23:07:53 xpsm1730 kernel: [37891.451506] scsi8 : usb-storage 2-2.3:1.0
Jul  9 23:07:54 xpsm1730 kernel: [37892.453111] scsi 8:0:0:0: Direct-Access     SanDisk  Cruzer Micro     8.02 PQ: 0 ANSI: 0 CCS
Jul  9 23:07:54 xpsm1730 kernel: [37892.453642] sd 8:0:0:0: Attached scsi generic sg3 type 0
Jul  9 23:07:54 xpsm1730 kernel: [37892.456785] sd 8:0:0:0: [sdc] Attached SCSI removable disk
Jul  9 23:07:57 xpsm1730 kernel: [37895.005203] sd 8:0:0:0: [sdc] 15695871 512-byte logical blocks: (8.03 GB/7.48 GiB)
Jul  9 23:07:57 xpsm1730 kernel: [37895.008398]  sdc: sdc1
Jul  9 23:07:57 xpsm1730 hald: mounted /dev/sdc1 on behalf of uid 0

And unplugging it reveals:

Code:

Jul  9 23:09:26 xpsm1730 kernel: [37984.878911] usb 2-2.3: USB disconnect, address 8
Jul  9 23:09:26 xpsm1730 hald[2273]: forcibly attempting to lazy unmount /dev/sdc1 as enclosing drive was disconnected
Jul  9 23:09:26 xpsm1730 hald: unmounted /dev/sdc1 from '/media/USBSLACK' on behalf of uid 0

markush · 07-10-2011, 02:21 AM

Hello lpallard,

your user should be member of the "plugdev" group. You can check this with the

Code:

groups

command. If this does not help, you should read the tutorial about udevrules here http://reactivated.net/writing_udev_rules.html

I'm running KDE and my USB-devices are mounted automatically. I don't think that this can be that difficult with XFCE.

Markus

lpallard · 07-10-2011, 12:29 PM

OK I might have found the problem....

This specific USB stick gets mounted under /media/USBSTICK... I verified the permissions of this folder and here it is:

Code:

bash-4.1# ls -l 
drwxr-xr-x 2 root root 4096 Dec 31  1969 USBSTICK

So as you can see, this folder does not have write permissions for anything erxcept the owner, root.

I tried to change the permissions while the stick was mounted there, but it does not work. No errors are issued, i/e/ I see nothing when I try, but the permissions are kept the same.

I used

Code:

chmod 777 USBSTICK

At first I thought it was because the stick was mounted. Then I unplugged the stick but the mount point dissapeared (normal). I also tried using a root session and via the GUI, same thing. It seems to complete successfully, but the permissions are not changed.

So here are my questions:

Could it be my problem?
If so, how do I change these permissions permanently? I imagine there must be a way to get the mount point created with these permissions at first?
Then if it works for this one, how do I get EVERY future mount points for USB sticks or hard drives mounted with proper permissions? I really dont want to screw around this every time I want to use a stupid usb stick....

EDIT: Whats up with that 1969 date? THis stick is not that old...

markush · 07-10-2011, 12:42 PM

Hi,

first thing: you cannot change permissions on a fat-filesystem because this filesystem is quite old and doesn't support permissions.

Did you check if your user (yourself probably) is member of the plugdev-group?

Here (I'm using KDE) a memory-stick is automatically mounted and the permissions are

Code:

drwxr-xr-x 14 markus root  32K Jan  1  1970 disk/

Markus

lpallard · 07-10-2011, 03:02 PM

OK I understand for the fat permissions, I myself knew but forgot....

Yes I am member of the plugdev group. Confirmed with both Kuser (KDE Users) and the CLI:

Code:

bash-4.1# groups lpallard
lpallard : users floppy audio video cdrom plugdev power netdev vboxusers

And we have the same kind of permissions (from what I can see in your last post...)

Anything else ?

markush · 07-10-2011, 03:06 PM

Quote:

Originally Posted by lpallard

...
And we have the same kind of permissions (from what I can see in your last post...)

Anything else ?

No! we don't, at your output owner is root and group is root. In my output of ls the user (markus) is owner and the group is root.

This is the difference.

Markus