Citrix Systems 6.2.0 manual Troubleshooting Boot Problems on Linux VMs

You can configure the VMs dump level by following the menu path My Computer > Properties > Advanced >

Startup and Recovery.

F.2. Troubleshooting Boot Problems on Linux VMs

There is a utility script named xe-edit-bootloaderin the XenServer host control domain which can be used to edit the bootloader configuration of a shutdown Linux VM. This can be used to fix problems which are preventing it from booting.

To use this script:

1.Run the command

xe vm-list

to ensure that the VM in question is shut down (the value of power-statewill be halted).

2.You can use the UUID as follows:

xe-edit-bootloader-u<linux_vm_uuid> -p<partition_number> or the name-label as follows:

xe-edit-bootloader-n<linux_vm_name_label> -p<partition_number>

The partition number represents the slice of the disk which has the filesystem. In the case of the default Debian template, this is 1 since it is the first partition.

3.You will be dropped into an editor with the grub.conf file for the specified VM loaded. Make the changes to fix it, and save the file, exit the editor, and start the VM.

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