VFAT drive keeps turning into read only

ralvy · 2006-02-08 05:21:50

I notice that I one of my mounted VFAT drives, after online for a while, is becoming read only. Why would this happen? To resolve it, I have to umount and then mount it. After a while, I have to do it again. Here's the relevant line in my fstab:

/dev/hdb1    /mnt/back    vfat    auto,umask=000,uid=1000,gid=100        0    0

My user id and gid are the ones you see above. Here's an ls -l output of that partition:

drwxrwxrwx  37 ralvy users 32768 2006-02-07 19:03 back

No writes or deletes can be done on that drive right now.

A few seconds later, after umount/mount of /mnt/back ...

All is fine again. Why?

I'm running Arch current/extra up to date.

budman7 · 2006-02-08 08:35:42

This is my entry for my fat32 partition that automounts at boot

/dev/hdb1               /mnt/music       vfat            umask=0000,auto,users  0 0

It is what I used in Gentoo, and I just copied it into Arch, works great.

brain0 · 2006-02-08 09:58:00

Check your syslog (/var/log/*). There might be something that tells you the reason (though I've only such this behaviour with ext2/3 so far).

ralvy · 2006-02-08 14:23:51

brain0 wrote:

Check your syslog (/var/log/*). There might be something that tells you the reason (though I've only such this behaviour with ext2/3 so far).

Found this for that day:

Feb  7 11:43:17 tux FAT: Filesystem panic (dev hdb1)
Feb  7 11:43:17 tux fat_free_clusters: deleting FAT entry beyond EOF
Feb  7 11:43:17 tux File system has been set read-only

So I just did

fsck -t vfat -a /mnt/back

and let it fix the problems. We'll see this stops it. Sounds like it will.

Thanks for the suggestion.

Arch Linux

#1 2006-02-08 05:21:50

VFAT drive keeps turning into read only

#2 2006-02-08 08:35:42

Re: VFAT drive keeps turning into read only

#3 2006-02-08 09:58:00

Re: VFAT drive keeps turning into read only

#4 2006-02-08 14:23:51

Re: VFAT drive keeps turning into read only

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