On Mon, Jun 9, 2008 at 6:30 PM, Jon Peatfield
<[log in to unmask]> wrote:
> On Mon, 9 Jun 2008, Jan Iven wrote:
>
>> On 06/06/08 19:03, Ken Teh wrote:
>> [..]
>>>
>>>  %post
>>>  ...
>>>  [ -d /mnt/SL ] || mkdir -p /mnt/SL
>>>  mount -rvt nfs server.anl.gov:/SL /mnt/SL
>>>  if [ $? = 0 ]; then
>>>   echo "server.anl.gov:/SL mounted"
>>>  else
>>>   echo "failed to mount server.anl.gov:/SL
>>>   exit 0
>>>  fi
>>
>> The error message from mount, as well as the saved syslog file might have
>> some clues, but perhaps you haven't installed portmap (or haven't started
>> it)? You will also need nfs-utils, and I've seen recommendations to use the
>> "-o nolock" mount option in %post.
>>

It has been ages since I 've done this but certainly in the past the
mount needed both
a nolock and nfsvers=2

mount -o nolock,nfsvers=2

 Steve

>> If this all still fails, I'd suggest to break out into a shell in the
>> "fail" tree of your %post, to allow you to do some debugging. Something like
>>
>> chvt 6
>> /bin/bash -i </dev/tty6 >&/dev/tty6
>
> Well vt 6 is where the installer X server seems to run but yes.  I'm afraid
> I copy openvt onto the box during %pre so things in %post (etc) can use it -
> it is a cleaner tool.  (note that the sl5 busybox includes an 'openvt' but
> that doesn't have the useful options).
>
> In the %post remember that the startup scripts havn't been run so files like
> resolv.conf may not have sane contents.
>
> We use "%post --nochroot" so we can first copy bits of state (stuff we saved
> from any previous install, the ks files and logs from the install) into the
> newly installed tree, and then mount a directory from which we run various
> scripts in the chrooted tree:
>
> ...
> # location of new root
> NR=/mnt/sysimage
> ...
> ## Get dns lookups working enough to do the first mount (sigh...)
> cat > $NR/etc/resolv.conf <<EOF
> ..... <put your contents here> .....
> EOF
>
> ## Fix up nsswitch.conf so host name lookups use DNS not try to use NIS
> cp $NR/etc/nsswitch.conf $NR/etc/nsswitch.conf.SL_orig
> printf "/^hosts:/\ns;:.*;: files dns;\nw\nq\n" | ed $NR/etc/nsswitch.conf
>
> # Since we want to do NFS we need to start portmap and nfslocking (in
> # case it is needed), but portmapper needs loopback starting up first!
> #
> /usr/bin/ifconfig lo 127.0.0.1 up
> #
> chroot $NR /etc/rc.d/init.d/portmap start
> chroot $NR /etc/rc.d/init.d/nfslock start
>
> # Name lookups etc should be ok by now
> chroot $NR mount -o ro,nolock $SERV $CFDIR
>
> ... code to run the scripts in the chroot environment ...
>
> chroot $NR /etc/rc.d/init.d/nfslock stop
> chroot $NR /etc/rc.d/init.d/portmap stop
>
> cd /
> chroot $NR umount $CFDIR
>
>
>
> --
> Jon Peatfield,  Computer Officer,  DAMTP,  University of Cambridge
> Mail:  [log in to unmask]     Web:  http://www.damtp.cam.ac.uk/
>



-- 
Steve Traylen