Re: [Xen-users] [URGENT] How to boot DomU from customized kernel

[Alexandre Kouznetsov <alk@xxxxxxxxxx>]

Hello.

El 30/04/13 16:16, Anand Mundada escribió:
> I am using Xen hypervisor for my class project. I need to boot DomU from
> my custom kernel. I have compiled the kernel code inside DomU and
> created the initramfs. I can see its entry after update-grub. But when I
> reboot, I am getting following error:
> Error: Boot loader didn't return any data!
There are several possible causes of this issue.

The most common are:
- Incorrect order of element in "disk" array in the config. Not you 
case, I see only one disk.
- Boot partition formatted as ext3 with wrong options or as ext4. It has 
to be ext3 and inode-size set to 128 bytes (mkfs.ext3 default is 256 , 
use -I option), otherwise pygrub will not be able to read it.
- Grub config file in Dom0 missing or with errors.

In order to get more details from pygrub, try to do a manual run:
/usr/lib/xen-default/bin/pygrub /dev/VG/ubuntu
(might need something extra on your system, like creating manually a 
temporal directory to put kernel and initrd)
Greetings.

--
Alexandre Kouznetsov


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