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tcma
Apprentice
Joined: 28 Jun 2004
Posts: 208
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 Posted: Tue Jun 29, 2004 8:27 pm Post subject: cannot modify files on DOS partition |
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I mount a DOS partition as rw.
Login as root still not able to modify files on it.
Why?
# mount -t msdos -rw -o dmask=0777,fmask=0777 /dev/hda8 /mnt/dosg
chmod a+w /mnt/dosg/linux/notebook.txt
chmod: changing permissions of `/mnt/dosg/linux/notebook.txt' (requested: 0777, actual: 0755): Operation not permitted |
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kiezpro
Tux's lil' helper
Joined: 13 May 2004
Posts: 126
Location: Yes
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| Posted: Tue Jun 29, 2004 9:14 pm Post subject: |
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| FAT file systems don't support user and group permissions, so you can't set permissions for anyone else than the owner, and I assume you don't even have an execute bit (but I'm not sure about that one). |
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vonhelmet
l33t
Joined: 06 Apr 2004
Posts: 770
Location: Somewhere in a school
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| Posted: Tue Jun 29, 2004 9:44 pm Post subject: Re: cannot modify files on DOS partition |
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| tcma wrote: | I mount a DOS partition as rw.
Login as root still not able to modify files on it.
Why?
# mount -t msdos -rw -o dmask=0777,fmask=0777 /dev/hda8 /mnt/dosg
chmod a+w /mnt/dosg/linux/notebook.txt
chmod: changing permissions of `/mnt/dosg/linux/notebook.txt' (requested: 0777, actual: 0755): Operation not permitted |
I'm not sure, but I think there is an option in the kernel to compile in FAT write support... maybe you only have read support compiled in?
Try setting a umask too.
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