Problem in using chmod with mounted folder

casper234 · 02-13-2006, 06:25 AM

The situation is:
I had a Fat32 partition and I mounted it to /mnt/FAT. It's ok.
In /mnt/FAT, i created 2 folders: READONLY and WRITABLE, and I want to set permissions rule 755 to READONLY and 777 to WRITABLE.

When I used chmod -R 777 /mnt/FAT/WRITABLE, i received the following message:

chmod: changing permissions of `/mnt/FAT/WRITABLE' (requested: 0777, actual: 0755): Operation not permitted

Vice versa, if I mount my partition with umask=0 (anything in this has permission mask 777), and i chmod to READONLY: chmod -R 755 /mnt/FAT/READONLY, I also received the similar error:

chmod: changing permissions of `/mnt/FAT/READONLY' (requested: 0755, actual: 0777): Operation not permitted

Any suggestion?

satinet · 02-13-2006, 07:58 AM

Correct me if i'm wrong but the FAT32 file system doesn't recongnise file permssions and linux permission cannot be applied to it. other that with a 'umask' etc settings in /etc/fstab.

marozsas · 02-13-2006, 07:59 AM

FAT filesystems haven't support for permissions, owner, group, links, symbolic links.
It's a very very very simple filesystem.

Cheers,

casper234 · 02-13-2006, 08:11 AM

Oh, What a file system

I will format it using ext3.
Thanks very much to satinet, marozsas.

alienDog · 02-13-2006, 08:23 AM

I believe this must be post number #315 about the same subject. Please try to learn to search the forums people.

satinet · 02-13-2006, 08:45 AM

a lot more than 315 i suspect!

i guess, its much harder if you think the problem is unique to you. however, i reckon 50% of the probs in this forum could be solved via judicious use of google.

however, it's much harder to frame google queries and questions in this forum if you dont have the technical knowledge and experience to encapsulate the problem in words. Casper did try some things, so i'm cool with that.

but fair point AlienDog!

:-D