Mounting FAT partitions on Ubuntu

[Bryan.ONeal at asu.edu]

BTW This worked like a charm; Thanks :)


Quoting Joseph Sinclair <plug-discuss at stcaz.net>:

> Please read all of this, what you're trying to do cannot be accomplished
> the way you're trying to do it.
> 
> You should never be able to login as root.  Ubuntu does it the "proper"
> way by using sudo.
> To get a root login, simply "sudo su -" and, after entering *your*
> password, you'll be in as root.
> Most of the time, you should just be root for a single command, in which
> case "sudo <command>" works just fine.
> Of course, this won't help you change the permissions of the mounted
> volumes, but that's handled below.
> 
> You cannot change the permissions on a mounted FAT/VFAT/NTFS
> partition.
> You cannot change the owner on a mounted FAT/VFAT/NTFS partition
> either.
> This is because FAT/VFAT don't have permissions in the filesystem, and
> NTFS uses ACL's and MAC, which Linux doesn't support very well at this
> point.
> 
> If youwant to have access to a FAT/VFAT or NTFS partition mounted in
> Linux, you must modify the mount commands to specify the umask, and/or
> the uid options.
> If you specify a 000 umask, you should see drwxrwxrwx for the file
> permissions on the mounted volume.
> For VFAT, dmask and fmask provide a good split, since a umask of 000
> leaves EVERY file executable, but umask 111 leaves directories
> unreadable, see the example below for the solution
> If you want to change the owner of the files, set the uid=#### option to
> the uid of your user.
> Be sure to prepend sudo to the mount command.
> 
> e.g. sudo mount -t vfat -o dmask=000,fmask=111,rw,nouser,sync,uid=1000
> /dev/hda2 /mnt/drivec
> 
> Good luck.
> 
> BTW, the reason you don't get an error trying to change the permissions
> and/or owner on the partitions is because the default for mounting a
> FAT/VFAT/NTFS partition is "quiet" which means any premissions setting
> actions are silently ignored.
> 
> ==Joseph++
> 
> Bryan.ONeal at asu.edu wrote:
> > Ok, perhaps its late, perhaps I am tired, perhaps I an newb in
> disguise...  But
> > I can not get this Ubuntu install do mount my two fat partitions in an
> rw mode
> > 
> > 1)I can chmod the two folders to +w on group and wold, but it dosn't
> take.  when
> > I ls -l they are back to drwxr-xr-x even though chmod says it changed
> it.  
> > 2)If I umount and mount again specifying write, it goes through, but
> still will
> > not let me write.
> > 3)Even if I could get it to go I can not find an fstab anywhere! So
> how do I
> > change the mount behavior for these volumes?
> > 4)I had this problem with FC4 but I fixed it by login in as root and
> changing
> > the owner of the  mount folders to my primary user, but I can not
> loginto Ubuntu
> > as root.
> > 
> > This is one of many things I must figure out before I give the box to
> my dad...
> >  Installing VMWare is the only other thing I can not find a helpful
> guide on...
> > 
> > Thnks in advance, 
> >    Mr. Fealing like a newb
> > ---------------------------------------------------
> > PLUG-discuss mailing list - PLUG-discuss at lists.plug.phoenix.az.us
> > To subscribe, unsubscribe, or to change  you mail settings:
> > http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
> > 
>