livecd-creator unmounting temp image, running daemons.

[Jerry Vonau]

Martin Langhoff wrote:
> On Sun, Jul 27, 2008 at 3:25 PM, Martin Langhoff
> <martin.langhoff at gmail.com> wrote:
>> After a bit more investigation. the livecd-tools package in F9
>> (017.1-1.fc9) can only build F9 correctly, and the problem boils down
>> to incorrect placement of the .ko files in the initrd. Here is how to
>> repro with F9 vs F7. In my testing, F8 shows the same problems.
> 
> I tracked this down to the switch from mayflower to mkinitrd, which
> lead me to commit
> 11dbd0bb5ba4b845e80109e990e4e780ca402218 where mayflower gets
> installed and called during %post.
> 
> So I updated my ks file as below. This still fails to build a bootable
> F8 or F7, both drop to an emergency shell after failing to find root
> (see below for more details). I am using git's master for these
> builds.
> 
> Current kickstart file
> 
> --8<----8<----8<--
> lang en_US.UTF-8
> keyboard us
> timezone US/Eastern
> auth --useshadow --enablemd5
> selinux --disabled
> firewall --disabled
> part / --size 1024
> 
> repo --name=released
>
--mirrorlist=http://mirrors.fedoraproject.org/mirrorlist?repo=fedora-8&arch=$basearch
> 
> %packages
> @core
> bash
> kernel
> passwd
> policycoreutils
> chkconfig
> authconfig
> rootfiles
> 
> # for live initrd
> livecd-tools
> # livecd bits to set up the livecd and be able to install
> anaconda
> #isomd5sum
> 
> %end
> 
> %post
> # make the initrd we care about
> rm -f /boot/initrd*.img
> cp /etc/sysconfig/mkinitrd /etc/mayflower.conf
> ver=`ls /boot/vmlinuz* |head -n 1 |sed -e 's;/boot/vmlinuz-;;'`
> /usr/lib/livecd-creator/mayflower -f /boot/initrd-$ver.img $ver
> rm -f /etc/mayflower.conf
> %end
> 
> %post --nochroot
> # move the initrd we created to be the booted one
> mv $INSTALL_ROOT/boot/initrd-*.img $LIVE_ROOT/isolinux/initrd0.img
> %end
> --8<----8<----8<--
> 
> With this ks file, the initrd is now built correctly. But during boot
> with F8 I see all sorts of odd errors:
> 
> WARNING: Bogus /etc/fstab file - cannot have /dev/root as the device
for /
> ...
> starting udevd
> creating devices
> waiting for system to settle
> ...
> SQUASHFS error: Major/Minor mismatch, trying to mount newer 3.1
filesystem
> SQUASHFS error: Please update your kernel
> mount: wrong fstype ...
> 

The squsashfs-tools/kernel module on the fc7/8 live disks is to old to
mount the squashfs.img created on the newer f9 box. 


> Once on the shell, the dmesg output looks normal except for the
> Squashfs errors, and ls /dev/ does not contain anything that looks
> like a usable block device. Trying to mount /dev/loop0 gives me the
> same squashfs error as before.
> 
> hmmmm? hints?
> 
> 
> 
> m

Think you would need to include, maybe recompile, the squashfs-tools rpm
from the f9. Then I think you'll need to recompile the kernel module and
include it in the initrd. I can't recall when this update to squashfs
occurred, but I believe it was tied to a kernel update between fedora
releases 8-9. so I'm not sure if the above will even work.

Jerry