Re: tar/NFS problem
On Tuesday 15 July 2003 22:02, Michael Heironimus wrote:
<snip>
> > but when I tested out the "tar cf /home/desirebackup/home_backup.tar
> > /home/desire/piers" I get a lot of "Permissions denied" errors although
> > some files are read OK. (An example is "tar: /home/desire/piers/.mcoprc:
> > Read error at byte 0, reading 31 byes: Permission denied")
>
> It looks like you're using root to run your backup. Normally root is
> remapped to nobody ("root squashing") on NFS mounts for security
> reasons, so root won't have permission to read files that aren't
> world-readable. In the /etc/exports file on the server you can add the
> no_root_squash option to allow root access on an exported filesystem.
> See the man page on exports for details.
I logged in as root and tried to write to a directory on an NFS partition
owned by account1 and got a permission error. Then I did "su account1" and
was able to write to the partition. Then I did "exit" and was no longer able
to write the partition. Can the su command be used in the cron script to
accomplish the tar-up and keep the root-squash in effect?
--
Mike Mueller
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