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TobiWan
Apprentice
Joined: 07 Jul 2003
Posts: 275
Location: Brussels, Old Europe
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 Posted: Sun Aug 07, 2005 3:23 pm Post subject: [SOLVED] Yet another mount/umount permission question |
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Hi everybody,
I'm using HAL in combination with KDE 3.4.1 to automatically mount my USB storage devices. When I plug them in, they get mounted automatically and I can access them using Konqueror in the media tab. So far so good.
The problem is I can't umount them in Konqueror by right-clicking and choosing "Safely Remove". If I do, I get
| Quote: |
umount: only root can unmount /dev/sdb1 from /media/CNMEMORY1
Please check that the disk is entered correctly.
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This is the line that gets added to /etc/fstab after the device is mounted automatically:
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/dev/sdb1 /media/CNMEMORY1 vfat user,exec,noauto,utf8,noatime,sync,managed 0 0
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This is the entry in /etc/mtab that corresponds to the /etc/fstab entry:
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/dev/sdb1 /media/CNMEMORY1 vfat rw,nosuid,nodev,sync,noatime,utf8,umask=0007,gid=100 0 0
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How do I solve this? I'm guessing I have to investigate HAL settings but I don't know where to look.
BTW: The same problem persists in GNOME.
EDIT: When I manually umount the device using sudo the entry in /etc/mtab is removed while the entry in /etc/fstab remains. I have to remove this line manually before I'm able to plugin the USB stick again.
thanks for pointers or better yet detailed instructions for dummies! 
Tobias
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Last edited by TobiWan on Sun Aug 07, 2005 9:07 pm; edited 2 times in total |
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PaveQ
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Joined: 11 Feb 2005
Posts: 225
Location: Finland
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| Posted: Sun Aug 07, 2005 3:47 pm Post subject: |
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| Maybe you could try to add user option to fstab? |
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TobiWan
Apprentice
Joined: 07 Jul 2003
Posts: 275
Location: Brussels, Old Europe
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| Posted: Sun Aug 07, 2005 3:55 pm Post subject: |
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| PaveQ wrote: | | Maybe you could try to add user option to fstab? |
That's the point. Any addition to /etc/fstab is useless since it gets created in realtime by HAL. I need to tell HAL how to create /etc/fstab entries rather than make them myself. That's the whole point and I simply don't know how. 
regards,
Tobias
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Joffer
Guru
Joined: 10 Sep 2002
Posts: 585
Location: Arendal, Norway
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| Posted: Sun Aug 07, 2005 4:43 pm Post subject: |
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Is your user in the disk group?
| Code: | | gpasswd -a <username> disk |
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TobiWan
Apprentice
Joined: 07 Jul 2003
Posts: 275
Location: Brussels, Old Europe
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| Posted: Sun Aug 07, 2005 5:13 pm Post subject: SOLVED |
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Hi there,
I solved it using this thread.
Summary:
Edit /usr/share/hal/fdi/90defaultpolicy/storage-policy.fdi and change:
| Code: | | <merge key="storage.policy.default.mount_option.user" type="bool">true</merge> |
to
| Code: | | <merge key="storage.policy.default.mount_option.user[b]s[/b]" type="bool">true</merge> |
and restart hald:
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# /etc/init.d/hald restart
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The problem is this: when hald mounts devices it does not mount these devices as a user who is currently logged into the machine but as the user the daemon is running under. The 'user' option in /etc/fstab does allow only for the user who mounted the device to unmount it (or root). By changing 'user' to 'users' hald creates /etc/fstab entries with the 'users' option. Now any user can umount devices.
This should be fixed in the ebuilds for hald and ivman imho.
regards,
Tobias
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