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  #1  
Old 2nd March 2010, 01:19
Teng Teng is offline
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Question Xen Installation error: partition does not exist

We compiled xen-3.4.2 (2.6.18.8-xen).
The grub entry, and the partition information to boot from /dev/sda1 is as follows.


1. /boot/grub/menu.lst:

title Xen
uuid 30ec981c-187e-4488-ae98-fe54ad13a77b
kernel /boot/xen-3.4.gz console=vga
module /boot/vmlinuz-2.6.18.8-xen root=UUID=30ec981c-187e-4488-ae98-fe54ad13a77b ro console=tty0 rootdelay=90
module /boot/initrd-2.6.18.8-xen.img


2. fdisk:

Disk /dev/sda: 122.9 GB, 122942324736 bytes
255 heads, 63 sectors/track, 14946 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000e4ad4

Device Boot Start End Blocks Id System
/dev/sda1 * 1 1376 11052688+ 83 Linux
/dev/sda2 14335 14946 4915890 5 Extended
/dev/sda3 1377 11587 82019857+ 83 Linux
/dev/sda4 11588 14334 22065277+ 7 HPFS/NTFS
/dev/sda5 14335 14946 4915858+ 82 Linux swap / Solaris

Partition table entries are not in disk order


3. /etc/fstab:

# /dev/sda1
UUID=30ec981c-187e-4488-ae98-fe54ad13a77b / ext3 relatime,errors=remount-ro 0 1
# /dev/sda5
UUID=3896c65c-3908-412d-8d3d-e5593a6e674e none swap sw 0 0


4. /dev/disk/by-uuid/:

total 0
lrwxrwxrwx 1 root root 10 2010-03-01 14:43 1385D7DA6D83F67F -> ../../sda4
lrwxrwxrwx 1 root root 10 2010-03-01 14:43 30ec981c-187e-4488-ae98-fe54ad13a77b -> ../../sda1
lrwxrwxrwx 1 root root 10 2010-03-01 14:43 3896c65c-3908-412d-8d3d-e5593a6e674e -> ../../sda5
lrwxrwxrwx 1 root root 10 2010-03-01 14:43 6c4a7894-1a6a-46b7-b020-7a3cfa859283 -> ../../sda3


When we boot the new Xen kernel, we get the messsage:
ALERT! /dev/disk/.......does not exist. Dropping to a shell!

We tried several other settings for "root=" in the menu.lst such as
root=/dev/sda1, etc.
But none of them worked. We kept getting the same error message "..... does not exist".

Can somebody figure out why does this happen? Thanks a lot in advance!
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  #2  
Old 2nd March 2010, 17:00
falko falko is offline
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Which distribution do you use? What tutorial (URL) did you use to set up the system?
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Old 2nd March 2010, 20:10
Teng Teng is offline
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Quote:
Originally Posted by falko View Post
Which distribution do you use? What tutorial (URL) did you use to set up the system?
I use Ubuntu 8.10 (Intrepid Ibex). I just follow the README file and official Xen user tutorial from http://www.xen.org/support/documentation.html

Is it possibly a hardware (eg. hard drive) compatibility problem?

Last edited by Teng; 2nd March 2010 at 20:17.
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Old 3rd March 2010, 14:39
falko falko is offline
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I suggest you try the following tutorial instead:
http://www.howtoforge.com/installing...tu-8.10-x86_64
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