xenserver vm fails to reboot manual recovery and repair

By klsh on October 13, 2009 6:39 PM | | TrackBacks (0)

OK this was a incredible headache, but with care can be recovered at least to get your data off.
I think I replaced the kernel with a non-standard ie not a xen kernel.

You will need:
systemrescuecd


from the console of the xenserver:
xe vm-list
xe vm-list name-label=YOUR-CORRUPT-VM-NAME params=uuid
xe vm-param-set uuid=c37623c8-2d38-04a0-19d3-792630865172 HVM-boot-policy="BIOS order"

Go to the General Tab of your corrupt vm
click Properties
click Startup Options
adjust Boot Order For systemrescuecd.iso in virtual drive you have mounted with the CIFS ISO library option under the GUI for the xenserver console.

reboot the VM
hit enter at the systemrescuecd splash screen
at the console type this:

net-setup eth0
dhcpd eth0
mkdir /mnt/sda1
mount -t ext3 /dev/sda1 /mnt/sda1
cd /mnt/sda1

you now have a sshd server you can sftp data off of

10/13/2009 6:38:54 PM Error: Starting VM 'Rails' - The bootloader for this VM returned an error -- did the VM installation succeed? Error from bootloader: Return code: 1; Log = Traceback (most recent call last):
File "/usr/bin/pygrub", line 731, in ?
data = fs.open_file(chosencfg["kernel"]).read()
IOError: [Errno 2] No such file or directory

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This page contains a single entry by klsh published on October 13, 2009 6:39 PM.

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