Issue with RAID/LVM on re-installs

[Lance Boomerang]

Excellent, that worked!

I added a %pre entry to fix this and it works.

%pre
dd if=/dev/zero of=/dev/sda bs=1024 count=1
dd if=/dev/zero of=/dev/sdb bs=1024 count=1


Thanks so much.

Lance

Caetano, Greg wrote:
> Lance
>  
> I've seen similar issues due to the LVM information being on the physical drives. I usually clear out the first 1M of disk information before starting a re-install.
>  
> dd if=/dev/zero of=/dev/sda bs=1024 count=1
>  
> Greg Caetano RHCE
> HP Linux Solutions Alliances Engineering
>
> ________________________________
>
> From: kickstart-list-bounces at redhat.com on behalf of Lance Boomerang
> Sent: Fri 10/13/2006 10:53 AM
> To: Discussion list about Kickstart
> Subject: Issue with RAID/LVM on re-installs
>
>
>
> Here is an odd one.
>
> RHEL4U4
> I have a PXE based kickstart that creates a RAID + LVM setup on two
> internal SATA drives using the
> below kickstart entry.  This works fine on the first install.  However,
> I am working on a setup where I
> can rebuild hosts often if we need to for whatever reason.  If I re-kick
> the hosts again, the process works great
> up until the reboot. Then, *sometimes* the machine will stop and the
> console will display "GRUB" and hang forever.
> I can try the kickstart again, but the results are the same.  However,
> if I manually reinstall and not use md RAID, then
> a new kickstart install with this setup works fine again.  So, only
> thing I can think of is that something is not getting cleared
> in the kickstart process on the drives that is confusing GRUB as it
> starts to boot.  I tried adding all the disk clearing options to the
> kickstart file but it has not made a difference. Any ideas?
>
> kickstart partition section:
> ----------------------------
> bootloader --location=mbr
> clearpart --all --drives=sda,sdb --initlabel
> zerombr yes
> part raid.13 --size=100 --ondisk=sda
> part raid.14 --size=100 --ondisk=sdb
> part raid.17 --size=100 --grow --ondisk=sdb
> part raid.16 --size=100 --grow --ondisk=sda
> raid /boot --fstype ext3 --level=RAID1 raid.13 raid.14
> raid pv.18 --fstype "physical volume (LVM)" --level=RAID1 raid.16 raid.17
> volgroup VolGroup00 --pesize=32768 pv.18
> logvol swap --fstype swap --name=LogVol03 --vgname=VolGroup00 --size=2016
> logvol /usr --fstype ext3 --name=LogVol04 --vgname=VolGroup00 --size=10016
> logvol /home --fstype ext3 --name=LogVol01 --vgname=VolGroup00 --size=10016
> logvol /var --fstype ext3 --name=LogVol02 --vgname=VolGroup00 --size=10016
> logvol / --fstype ext3 --name=LogVol00 --vgname=VolGroup00 --size=5024
>
>
>
> TIA,
>
> Lance
>
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