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Re: [Xen-devel] pv-grub: trouble when using UUID
Correction: In grubdom if I just add a line 'root (hd0)' then it will boot fine.
xen: 4.0.0-rc8
Jun 16, 2010 05:29:46 PM, greno@xxxxxxxxxxx wrote:
I have two filesystem images that I built: root and /mnt and with a guest menu.lst that uses UUID I am able to create a running xen domain using either a normal 'xm' config or a 'pygrub' bootloader config.
I am unable to create a working config using 'pv-grub' however using UUID.
The guest menu.lst uses 'uuid' rather than 'root' and whenever I try to create the domain using 'pv-grub' it always drops me to a 'grubdom' prompt. In grubdom if I just add a line 'root=/dev/xvda1' then it will boot fine. I cannot test 'uuid' in grubdom because it does not recognize the 'uuid' command.
Here are details:
host: pv_ops dom0 kernel 2.6.32.13
guest: ubuntu kernel 2.6.32-22-server
========================================
pv-grub configfile:
========================================
name = "test"
maxmem = 4096
memory = 1024
vcpus = 4
uuid = "b59e45e2-3137-4685-a31c-a8c87a65c4fc"
kernel = "/usr/lib/xen/boot/pv-grub-x86_64.gz"
extra = "(hd0)/boot/grub/menu.lst"
disk = [
"tap:aio:/root/ubuntu-xen/root.img,xvda1,w",
"tap:aio:/root/ubuntu-xen/____.img,xvdb,w"
]
vif = [ "mac=00:16:1a:2a:ef:56,bridge=br0" ]
========================================
guest /boot/grub/menu.lst:
========================================
default 0
timeout 3
hiddenmenu
title Ubuntu 10.04 LTS, kernel 2.6.32-22-server
uuid b59e45e2-3137-4685-a31c-a8c87a65c4fc
kernel /boot/vmlinuz-2.6.32-22-server root=UUID=b59e45e2-3137-4685-a31c-a8c87a65c4fc ro console=hvc0 splash
initrd /boot/initrd.img-2.6.32-22-server
title Ubuntu 10.04 LTS, kernel 2.6.32-22-server (recovery mode)
uuid b59e45e2-3137-4685-a31c-a8c87a65c4fc
kernel /boot/vmlinuz-2.6.32-22-server root=UUID=b59e45e2-3137-4685-a31c-a8c87a65c4fc ro single
initrd /boot/initrd.img-2.6.32-22-server
========================================
tune2fs -l /dev/loop0 # root fs
========================================
tune2fs 1.41.11 (14-Mar-2010)
Filesystem volume name:
Last mounted on:
Filesystem UUID: b59e45e2-3137-4685-a31c-a8c87a65c4fc
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery sparse_super large_file
Filesystem flags: signed_directory_hash
Default mount options: (none)
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 655360
Block count: 2621440
Reserved block count: 131072
Free blocks: 2413274
Free inodes: 632869
First block: 0
Block size: 4096
Fragment size: 4096
Reserved GDT blocks: 639
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 8192
Inode blocks per group: 512
Filesystem created: Wed Jun 16 03:46:23 2010
Last mount time: Wed Jun 16 13:15:24 2010
Last write time: Wed Jun 16 13:15:24 2010
Mount count: 5
Maximum mount count: 31
Last checked: Wed Jun 16 03:46:23 2010
Check interval: 15552000 (6 months)
Next check after: Mon Dec 13 02:46:23 2010
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 256
Required extra isize: 28
Desired extra isize: 28
Journal inode: 8
Default directory hash: half_md4
Directory Hash Seed: afd06bb1-27d7-4921-a8fc-693df864acf5
Journal backup: inode blocks
========================================
========================================
Can anyone see what is missing? I thought UUID should work with pv-grub but it is failing for me.
-Gerry
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