[CentOS-virt] Fedora 12 domU on CentOS 5.4 2.6.18-164.6.1.el5xen fails to boot

Charles J Gruener cjg9411 at rit.edu
Tue Nov 24 17:47:14 UTC 2009

I mentioned in a previous post that I specifically call out ext3 as the fstype option for /boot.  To alleviate further confusion, here is my kickstart file.

url --url http://mirrors.rit.edu/fedora/linux/releases/12/Fedora/x86_64/os
lang en_US.UTF-8
keyboard us
network --device eth0 --bootproto dhcp
rootpw ChangeMeNOW!
firewall --enabled --port=22:tcp
selinux --enforcing
timezone --utc America/New_York
bootloader --location=mbr
clearpart --all --initlabel
part /boot --fstype=ext3 --size=256
part pv.01 --size=2048 --grow
volgroup vg0 pv.01
logvol swap --fstype=swap --name=swap --vgname=vg0 --recommended
logvol / --fstype=ext3 --name=root --vgname=vg0 --size=1024 --grow

%packages --nobase

If I simply change the url line to be fedora 11 instead of 12, everything works and I can boot.

I decided to look into this a bit further.  After installing and getting the following error:

# pygrub /var/lib/xen/images/fedora12.img 
Traceback (most recent call last):
  File "/usr/bin/pygrub", line 677, in ?
    fs = fsimage.open(file, get_fs_offset(file))
IOError: [Errno 95] Operation not supported

I decided to 100% verify that the filesystem was in fact created as ext3.

# losetup /dev/loop0 /var/lib/xen/images/fedora12.img 
# kpartx -a /dev/loop0
# mount /dev/mapper/loop0p1 /mnt
# mount | grep /dev/mapper/loop0p1
/dev/mapper/loop0p1 on /mnt type ext4 (rw)

Wait...what?  But I specified ext3 in the kickstart file...

So how do I get anaconda on Fedora 12 to honor the --fstype=ext3 option for part /boot?  I tried both:

--fstype ext3



with the same results.


On Nov 24, 2009, at 12:06 PM, Pasi Kärkkäinen wrote:

> On Mon, Nov 23, 2009 at 05:51:51PM -0500, Charles J Gruener wrote:
>> I've only got the one virtual disk. /boot is on xvda1 with / and swap  
>> in LVs. The PV is xvda2.
> Double check the F12 /boot type. It needs to be ext3 for now.
> RHEL5 / CentOS5 doesn't have ext4 pygrub support yet.
> Xen packages on F12 host/dom0 do support ext4 pygrub though.
> -- Pasi

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