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[Xen-users] Booting problem with compiled xen 3.3.0/linux-2.6.18.8-xen.hg source

 

 

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abhadani at gmail

Mar 9, 2009, 10:19 AM

Post #1 of 1 (830 views)
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[Xen-users] Booting problem with compiled xen 3.3.0/linux-2.6.18.8-xen.hg source

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 [at] localhos xen-3.3.0]# make world
[root [at] localhos xen-3.3.0]# make install
[root [at] localhos xen-3.3.0]# depmod 2.6.18.8-xen
[root [at] localhos xen-3.3.0]# mkinitrd 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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