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windz
Tux's lil' helper
Joined: 07 May 2006
Posts: 89
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 Posted: Thu Mar 15, 2007 12:36 pm Post subject: ntfs-3g : Cannot umount as user (SOLVED) |
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Hi,
My hard disk is partitioned into 2 parts; one for XP and the other for Gentoo. I followed the wikipedia on how to enable the NTFS file system support in the kernel and also the wiki on enabling ntfs-write with ntfs-3g. I also followed the instructions to set the suid flag for the ntfs-3g binary. This is my entry for the ntfs partition in /etc/fstab:
/dev/hda1 /mnt/ntfs ntfs-3g noauto,user,uid=1000,fmask=0133,dmask=0022 0 0
With these settings, I am able to mount the partition as well as have read / write assess to it as a normal user. However, I am unable to umount /mnt/ntfs as a normal user. I get this message:
umount: only root can unmount /dev/hda1 from /mnt/ntfs
Can someone please help?
Thanks
Last edited by windz on Fri Mar 16, 2007 7:40 am; edited 1 time in total |
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Sachankara
l33t
Joined: 11 Jun 2004
Posts: 696
Location: Stockholm, Sweden
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| Posted: Thu Mar 15, 2007 12:57 pm Post subject: Re: ntfs-3g : Cannot umount as user |
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| Code: | | $ fusermount -u /mnt/ntfs |
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Gentoo Hardened Linux 2.6.21 + svorak (Swedish dvorak) |
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windz
Tux's lil' helper
Joined: 07 May 2006
Posts: 89
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| Posted: Thu Mar 15, 2007 1:10 pm Post subject: |
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Thanks, Sachankara, for your reply.
I tried fusermount -u /mnt/ntfs and got this message:
fusermount: entry for /mnt/ntfs not found in /etc/mtab |
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Sachankara
l33t
Joined: 11 Jun 2004
Posts: 696
Location: Stockholm, Sweden
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| Posted: Thu Mar 15, 2007 1:14 pm Post subject: |
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| windz wrote: | Thanks, Sachankara, for your reply.
I tried fusermount -u /mnt/ntfs and got this message:
fusermount: entry for /mnt/ntfs not found in /etc/mtab |
If the file system is not listed in /etc/mtab, then it's not mounted. Try mounting the file system like you always do, then run fusermount to unmount it.
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Gentoo Hardened Linux 2.6.21 + svorak (Swedish dvorak) |
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windz
Tux's lil' helper
Joined: 07 May 2006
Posts: 89
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| Posted: Thu Mar 15, 2007 1:17 pm Post subject: |
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| Sachankara wrote: | | If the file system is not listed in /etc/mtab, then it's not mounted. Try mounting the file system like you always do, then run fusermount to unmount it. |
That's what I did.
$ mount /mnt/ntfs
- The partition is mounted correctly
$ fusermount -u /mnt/ntfs
- I get this message: fusermount: entry for /mnt/ntfs not found in /etc/mtab |
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windz
Tux's lil' helper
Joined: 07 May 2006
Posts: 89
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| Posted: Thu Mar 15, 2007 1:30 pm Post subject: |
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Another thing: although the error stated that 'entry for /mnt/ntfs not found in /etc/mtab', I found this entry from " cat /etc/mtab ":
/dev/hda1 /mnt/ntfs fuseblk rw,nosuid,nodev,noexec,noatime,allow_other,default_permissions,blksize=4096 0 0 |
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irgu
Tux's lil' helper
Joined: 25 Apr 2003
Posts: 131
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| Posted: Thu Mar 15, 2007 8:18 pm Post subject: |
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| windz wrote: | I tried fusermount -u /mnt/ntfs and got this message:
fusermount: entry for /mnt/ntfs not found in /etc/mtab |
This looks to be a fusermount bug and maybe the umount too with the 'user' option.
But umount works for me if I use the 'users' option (note the plural). |
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windz
Tux's lil' helper
Joined: 07 May 2006
Posts: 89
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| Posted: Fri Mar 16, 2007 7:36 am Post subject: |
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| irgu wrote: |
This looks to be a fusermount bug and maybe the umount too with the 'user' option.
But umount works for me if I use the 'users' option (note the plural). |
Thanks. That worked. I wonder though what the difference between user and users is. 'user' works for the rest of my removable drives.
Thanks again. |
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Hu
Administrator
Joined: 06 Mar 2007
Posts: 23064
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| Posted: Sat Mar 17, 2007 12:43 am Post subject: |
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| windz wrote: | | I wonder though what the difference between user and users is. 'user' works for the rest of my removable drives. |
From man mount:
| Quote: |
user Allow an ordinary user to mount the file system. The
name of the mounting user is written to mtab so that he
can unmount the file system again. This option implies
the options noexec, nosuid, and nodev (unless overridden
by subsequent options, as in the option line
user,exec,dev,suid).
users Allow every user to mount and unmount the file system.
This option implies the options noexec, nosuid, and nodev
(unless overridden by subsequent options, as in the
option line users,exec,dev,suid).
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Loosely, this means that if you use users, then Alice can mount the filesystem, but Bob unmount it from under her. If you use user, only Alice (or root) can unmount the filesystem after Alice mounts it. |
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