Re: [Xen-users] Xen newbie question

["Eric S. Johansson" <esj@xxxxxxxxxx>]

Michael Mey wrote:
> > I really need to automate the image construction process so we will have
> > a repeatable process for producing these images.
> Try this one:
> http://www.tahina.priv.at/~cm/talks/setup-xen-debian
for debian, it seems to work kinda..

Starting deferred execution scheduler: atd.
Starting periodic command scheduler: cron.
INIT: Id "1" respawning too fast: disabled for 5 minutes
INIT: no more processes left in this runlevel

for ubuntu, it also failed.  the problem is that even if I could get 
debian to work, I need to work from an umbuntu base.  so onto the failures:
#1

I: Configuring gnupg...
I: Configuring ubuntu-keyring...
W: Failure while configuring base packages.  This will be attempted 5 times.
W: Failure while configuring base packages.  This will be attempted 5 times.
W: Failure while configuring base packages.  This will be attempted 5 times.
W: Failure while configuring base packages.  This will be attempted 5 times.
W: Failure while configuring base packages.  This will be attempted 5 times.
I: Base system installed successfully.

#2

+ chroot /mnt /usr/bin/aptitude upgrade
Reading package lists... Done
Building dependency tree... Done
Initializing package states... Done
root@xeno:~#

and it had a whole lot more to do.  I've been racking my brain and can't 
quite remember what magic mode of failure makes a shell script terminate 
without any error messages in mid-script.  what's infuriating is the 
debian version goes through the identical segment without a problem.
any ideas on how to fix this problem?

of course, it strikes me that it should be possible to create a disk 
image by using qemu and a bootable CD-ROM image.  The problem is, you 
get a real disk image complete with partitions and since the Linux 
loopback device is a botched job that can't cope with petitions and that 
the magic cylinder, heads, and sectors are guessed at, it's damned 
difficult to try and pull a partition out of a file based disk image. 
So far, I've failed every time.
The only tool I've really found that gets it right is losetup but making 
a copy of the mounted partition via /dev/loopX gives me
root@xeno:/home/esj# mount -o loop ubuntu-server-root.img  /virt_disk/
mount: wrong fs type, bad option, bad superblock on /dev/loop7,
       missing codepage or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

when I come back from shoveling snow, I'll try making a cp level copy of 
the partition onto a new straight file image.
---eric


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