Hi,

I'm installing a complete gentoo system on a raid1 system. I choose
to use lvm to split my 80 Gig raid1 into partition for /home /usr
etc... I did'nt had any problem for the installation until the boot
process. Mounting my system from my "rescue cd" (yes I decided to
make a part of my installation with a rescue cd instead of the boot cd
form gentoo because I wanted a more complete boot disc) is not a
problem.

But when it comes to the small system on my initrd, I tried with and
without the devfs support on the kernel and I'm able to read /dev/hda
but not my partitions on it! I have a Segmentation fault when I'm
trying to get my array working (of course, I cannot use my array if I
cannot read the underlaying partition). Do you have any idea why a
linux system could not be able to read the partition of an ide drive
(I receive a kind of "no such device" msg on car /dev/hda1) , but is
able to read the whole disc (by /dev/hda).


This system is driving me crazy! (first experimentation of initrd ...)

Thanks a lot!
François

Fran?ois Bernard Thibault <fthibault@gmail.com> wrote:
> I'm installing a complete gentoo system on a raid1 system. I choose
> to use lvm to split my 80 Gig raid1 into partition for /home /usr
> etc... I did'nt had any problem for the installation until the boot
> process.
[...]
> But when it comes to the small system on my initrd, I tried with and
> without the devfs support on the kernel and I'm able to read /dev/hda
> but not my partitions on it!
[...]
> (I receive a kind of "no such device" msg on car /dev/hda1) , but is
> able to read the whole disc (by /dev/hda).

This is a little confusing.
The subject of your post is "root on lvm".
Do you have the root file system on LVM?

It would be helpful to read conclusive information:

- Which kernel are you using? What are the LVM/RAID-relevant config
parameters?

- What is in your /etc/fstab ?

- If the problem is somehow related to the booting process, it might
also be interesting to know what boot manager you use and how it is
configured (e.g. /etc/lilo.conf)

Yours,
Laurenz Albe