Jon Nelson on 30 Mar 2004 16:08:03 -0000


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Re: [PLUG] Cannot change perms on fat32 partition?


Gregson Helledy said:
> Last week I posted about being unable to change perms on my fat32
> partition, mounted as /windows by root.
> Perms were originally displayed as:
> drwxr-xr-x
>
> Following suggestions here, I added the following to the line in
> fstab:
> umask=777
>
> Following a umount and mount, I then got perms like this:
> d---------

When using 'umask' the argument is a 3 digit Octal string.  This value is
then subtracted from 666 for files and 777 for directories.  The default
umask is 022 giving you the permissions you originally saw (drwxr-xr-x). 
This is why 'umask=777' gave you 'd---------'.  Change it to 'umask=000'
and that should give you what you want.

>From a security stand point you might want to create a 'windows' group and
then use the 'uid=value and gid=value' for mount to restrict access.  Also
change umask accordingly.

Jon




>
> From the documentation, I understood that it was supposed to
> be the same as with chmod.  I did:
> mkdir test
> chmod 777 test
>
> and it produced:
> drwxrwxrwx
> which is what I want, except on the /windows directory.
>
> What did I do wrong this time?
>
> Greg
>
>
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-- 
Trooper Jon S. Nelson, Linux Certified Admin., CCNA
Pa. State Police, Bureau of Criminal Investigation
Computer Crimes Unit
Work: 610.344.4471 Cell/Page: 866.284.1603
jonelson@state.pa.us
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