Re: vfs.usermount=1, bug?

From: Joe Marcus Clarke <marcus_at_marcuscom.com>
Date: Sat, 07 Feb 2004 15:22:29 -0500
On Sat, 2004-02-07 at 15:18, Didier Wiroth wrote:
> Hi, 
> using freebsd5.2-release 
> I've set vfs.usermount=1 in sysctl.conf. 
> Normal user get permission denied when trying to 
> mount an ntfs permission (slice ars01), until root 
> has mount and umount it at least once. 
> See the following 
>  
> File permission on /dev/ar0s1 is 644 and owned by 
> root:operator 
>  
> User ddais member of group dda, wheel & operator. 
>  
> A) Mounting as user dda: 
> dda_at_work:~> mount_ntfs /dev/ar0s1 mnt/ntfs/ 
> mount_ntfs: /dev/ar0s1: Operation not permitted 
>  
> Mounting was not permitted  
>  
> Changing to root: 
> dda_at_work:~> su 
> Password: 
> ROOT_at_work:/home/dda# mount_ntfs /dev/ar0s1 
> mnt/ntfs 
>  
> Slice was mounted without problem, let's umount 
> it, and change back to user dda. 
> ROOT_at_work:/home/dda# umount mnt/ntfs 
> ROOT_at_work:/home/dda# exit 
> exit 
>  
> B) TRY AGAIN NOW AS USER DDA 
> dda_at_work:~> mount_ntfs /dev/ar0s1 mnt/ntfs/ 
>  
> NOw it works?! Hmm...!? 
>  
> Any suggestions?! 

The ntfs.ko kernel module wasn't loaded until root issued the command. 
While usermount allows users to mount file systems, it does not allow
users to load kernel modules.

Joe

> Thx 
>  
> 
> 
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Received on Sat Feb 07 2004 - 11:22:35 UTC

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