[ale] Writing to NFS

Dow Hurst dhurst at kennesaw.edu
Tue Nov 11 13:04:07 EST 2003


I've never seen that needed.  Are your UIDs and GIDs on each machine 
identical?  You could remove the noexec option as you probably do want 
to run scripts and such from that nfs mount.  I've done this type mount 
before but had the mount point owned by root so the local user couldn't 
remove it.
Dow


David Corbin wrote:

>On Tuesday 11 November 2003 10:40, Dow Hurst wrote:
>  
>
>>Why would the group suid bit be on?
>>
>>I would expect:
>>
>>drwxr-xr-x
>>
>>but not with suid bits set on a mount point.  Is there some special
>>group that needs suid access?
>>Dow
>>
>>    
>>
>
>Doesn't that ensure that child files and directories inherit those 
>permissions, as opposed to actually giving suid access?
>
>
>  
>
>>David Corbin wrote:
>>    
>>
>>>On Tuesday 11 November 2003 10:24, Dow Hurst wrote:
>>>      
>>>
>>>>Your underlying mount point's permissions override the mount permissions
>>>>in IRIX.  I haven't tested this in Linux.  Umount the filesystem and
>>>>check to see if the mount point is writeable by root.
>>>>        
>>>>
>>>Here is the umounted mount point.
>>>
>>>drwxr-sr-x   69 dcorbin  dcorbin      4096 Nov 11 10:30 foobar/
>>>
>>>      
>>>
>>>>Dow
>>>>
>>>>David Corbin wrote:
>>>>        
>>>>
>>>>>Can someone explain why the file system is read-only?  mount says it's
>>>>>not. /etc/exports has the rw option on it.
>>>>>
>>>>>$ mount | tail -1
>>>>>foobar:/home/dcorbin on /data/home/dcorbin/foobar type nfs
>>>>>(rw,noexec,nosuid,nodev,addr=192.168.99.3,user=dcorbin)
>>>>>$ pwd
>>>>>/data/home/dcorbin/foobar
>>>>>$ echo >junk
>>>>>-bash: junk: Read-only file system
>>>>>          
>>>>>
>
>  
>

-- 
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Dow Hurst                  Office: 770-499-3428            *
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