Hi, I read your post about the compiling source of xen 3.3. I met the
same problem as you; the booter can not find the root filesystem. Did
you solve the problem or you could share your solution. Thanks.
Steven
--------------------------------------------------------------
Thanks for the reply. But i looked in /etc/modprobe.conf file. there
is no such thing.
[root@localhost etc]# cat /etc/modprobe.conf
alias eth0 e100
alias scsi_hostadapter libata
alias scsi_hostadapter1 ata_piix
alias snd-card-0 snd-intel8x0
options snd-card-0 index=0
options snd-intel8x0 index=0
[root@localhost etc]#
I also saw related directories and files like modprobe.d/ but couldn't find out.
do u mean to say that /xen-3.3.0/build-linux-2.6.18-xen_x86_32/
contains this file. but i was unable to find modprobe.conf inside
xen-3.3.0 directory.
I m still facing the same problem.
Any more suggestions.
Thanks,
Abhay
On Wed, Mar 4, 2009 at 6:42 PM, John Krautheim <jkrautheim@xxxxxxxxx> wrote:
Are you sure the initrd made correctly? It has the initial drivers
to read your drive. Xen is booting, so you probably not getting the
right drivers to start your OS. If you didn't modify the modprobe.conf
file, it probably had a alias for ata-generic, which is not supported
under the 2.6.18 kernel. Change the ata-generic to ahci and remake
your initrd file.
Also, unless your using aacraid, sd_mod, and scsi_mod, you can
delete those from your initrd file as well. The mkinitrd will include
the modules you need.
Hope this helps.
John Krautheim, CISSP, PMP
jkrautheim@xxxxxxxxx
On Wed, Mar 4, 2009 at 7:12 AM, Abhay Bhadani <abhadani@xxxxxxxxx> wrote:
Hi All,
I am trying to compile Xen 3.3.0 source code which
downloads updates from mercurial repository.
I am trying to modify the CPU scheduler, but before i make
any changes i need to test it by installing it from source.
OS: Fedora 8 Linux
I compiled the source code by using
[root@localhost xen-3.3.0]# make world
[root@localhost xen-3.3.0]# make install
[root@localhost xen-3.3.0]# depmod 2.6.18.8-xen
[root@localhost xen-3.3.0]# mkinitrd -v -f --with=aacraid
--with=sd_mod --with=scsi_mod initrd-2.6.18.8-xen.img 2.6.18.8-xen
then i moved "initrd-2.6.18.8-xen.img" to /boot
edited the grub.conf
title WindowsXP
rootnoverify (hd0,0)
chainloader +1
title Fedora-base (2.6.23.1-42.fc8)
root (hd0,5)
kernel /vmlinuz-2.6.23.1-42.fc8 ro root=LABEL=/ rhgb quiet
initrd /initrd-2.6.23.1-42.fc8.img
title Fedora (2.6.21-2950.fc8xen)
root (hd0,5)
kernel /xen.gz-2.6.21-2950.fc8
module /vmlinuz-2.6.21-2950.fc8xen ro root=LABEL=/ rhgb quiet
module /initrd-2.6.21-2950.fc8xen.img
title Source Compiled Xen - 3rd March 2009 (2.6.18.8-xen)
root (hd0,5)
kernel /xen-3.3.0.gz
#module /vmlinuz-2.6.18.8-xen ro root=/dev/sda8 console=tty0 1
module /vmlinuz-2.6.18.8-xen ro root=LABEL=/ console=tty0
module /initrd-2.6.18.8-xen.img
When i select 4th option, i get these messages while booting,
(XEN) *** LOADING DOMAIN 0 ***
.
.
.
(XEN) Dom0 has maximum 1 VCPUs
(XEN) Initrd len 0x6e8600, start ar 0xc0460000
(XEN) Scrubbing Free RAM: .........done.
(XEN) Xen trace buffers: disabled
Red Hat nash version 6.0.19 starting
mount: could not find filesystem '/dev/root'
setuproot: moving /dev failed: No such file or directory
setuproot: error mounting /proc : No such file or directory
setuproot: error mounting /sys : No such file or directory
switchroot: mount failed: No such file or directory
After this the system hangs....
it seems it is unable to mount root filesystem. What changes
needs to be done to make things work.
Any suggestions.
Thanks in advance.
Regards,
Abhay Bhadani
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