Dear Mark,

Thank you for this hint. ext2 is working but my clone is still not. I am
still investigating why. It doe not find an /root/proc in /etc/fstab or
/etc/mtab.

I was searching on the Internet regarding the best way of doing r/o root
file system. And found following:

http://en.opensuse.org/How-To_Make_the_root_filesystem_read-only

and

http://linuxvm.org/present/SHARE111/S9216rt.pdf

What I don't really have is a blueprint for SLES 11. Unfortunately there is
always a lot of change in the boot process and, at least to my knowledge, no
clear  documentation. I like the SHARE presentation very much.

In principle I am looking for a simple way to ensure nobody can change the
root and /usr and /opt directories. Currently under SLES 10 I have /etc,
/tmp /var and /home on separate minidisks. What I would need is a how to to
explain what is really needed from /etc during the boot process, especially
in r/w mode.

Isn't this similar to the process when I would put all that stuff into a
z/VM DCSS?

Kind regards,
Florian






On Wed, Mar 10, 2010 at 4:41 PM, Mark Post <[email protected]> wrote:

> >>> On 3/10/2010 at 06:11 AM, Florian Bilek <[email protected]>
> wrote:
> > Dear all,
> >
> > I would like to add ext2 and lvm2 support to the a SLES11 initrd. When I
> run
> > 'mkinitrd -f lvm2 ext2'  the command fails as it looks for
> > ext2/boot/System.map.
>
> Update INITRD_MODULES in /etc/sysconfig/kernel to include ext2, then run
> "mkinitrd -f lvm2"
>
> -snip-
> > It is now failing because ext3 driver always wants to write the journal.
>
> This tells me that the file system is mounted read-write somewhere else,
> which is a big no-no, or, it wasn't unmounted cleanly.  Don't do that.
>
>
> Mark Post
>
> ----------------------------------------------------------------------
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--
Best regards

Florian Bilek

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