administrator not able to change permission

cchanana · 12-01-2004, 08:34 AM

i recentlly installed linux in my system .i first created 3 fat 32 partitions and one partition for linux
now i cant change the permission of the fat32 partition( /mnt/d )even when i am logged in as the admin .though i am able to access the hd when i am logged in as a user but i am not able to write on it.though when i am admin i can write on it.
i have tried the chmod command and i have also tried changing permission by right clicking on the folder and going to propeties.
plz help

egag · 12-01-2004, 08:37 AM

permissions of fat-partitions are set in the fstab.
i have for vfat:

/dev/hda2 /win-d vfat defaults,users,umask=022 1 0

this will give users r/w access.

egag

hostile1313 · 12-01-2004, 08:40 AM

most mounts are set this way by default, maybe for security purposes. the way that I have always set it up is create a folder on the drive with root and change the permissions of it to what ever you like. this way you have the ability to write to that folder with the user, but you can not go off and delet the whole folder by accident with out root permissions.

otoomet · 12-01-2004, 09:09 AM

vfat (windows95 filesystem) has only limited support for permissions because Win introduces the user rights in a completely different way. Use vfat only if you need to share disks with windows. I would recommend to create just one small partition for file sharing and work mostly on linux FS. But it depends on your needs.

Best,

Ott

cchanana · 12-02-2004, 09:15 AM

thanks egag this was troubling me for 2 weeks
anyway could tell me what the 022 1 0 stands for
the rest i could uderstand from the man pages

egag · 12-02-2004, 11:04 AM

quote
---------
anyway could tell me what the 022 1 0 stands for
---------endquote

substarct the "umask" from "777"; in this case that's "755"
and those are the permissions of " owner,user,other" for that partition (= rwxr-xr-x )
( really don't know why to substract, but it is as it is

)

for the 1 & 0 at the end , see " man fstab " about the fifth & sixth field.

egag