On 07/11 11:55 , Timothy Murphy wrote:
> I want to archive backuppc on machine A to machine B.
> (Both are running CentOS-5.6 .)
> The problem is that backuppc has different UIDs on the 2 machines:
> on A it is 101, on B it is 102.
>
> Now when I NFS mount /archive on machine B on /archive on machine A
> I am told that /archive belongs to avahi-autoipd ,
> which has UID 102 on machine A.
>
> This seems to prevent backuppc from archiving onto /archive .
>
> Is there any simple way of changing a UID
> (together with all the files it owns)?
vipw then vigr to edit the UIDs in /etc/passwd and /etc/group. You will need
to do vipw -s and vigr -s to change the /etc/shadow and /etc/gshadow as
well.
Then use a command like 'find / -uid 102 -exec chown backuppc: {} \;' to
change the ownership of all the files owned by UID 102 to whatever UID
backuppc is.
> Alternatively, is there a way of telling backuppc to ignore the UIDs?
No.
UIDs are the real identifying information that maps file ownership onto
users. When you see a name like 'backuppc' associated with a file, it's
because the 'ls' program (or whatever other one) did a lookup of the UID to
the name in /etc/passwd.
If you do a 'ls -n' it simply reports the UIDs and skips the name lookup
step.
--
Carl Soderstrom
Systems Administrator
Real-Time Enterprises
www.real-time.com
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