Re: trouble with pygrub after upgrade

[Dustin Marquess <dmarquess%gmail.com@localhost>]

There was a patch against xentools to add ext4 support to pygrub:

http://cache.gmane.org//gmane/comp/emulators/xen/devel/75639-001.bin

-Dustin

On Tue, Jul 10, 2012 at 10:04 AM, John Hayward 
<john.hayward%wheaton.edu@localhost> wrote:
> This is now resolved.
> pygrub was unable to read the disk images which were ext4.  Dumping the ext4 
> disk images and restoring to ext2 disk images allowed pygrub to be able to 
> read these disk images.
>
> You can go back to your regularly scheduled program.
> johnh...
> ________________________________________
> From: port-xen-owner%NetBSD.org@localhost 
> [port-xen-owner%NetBSD.org@localhost] on behalf of John Hayward 
> [john.hayward%wheaton.edu@localhost]
> Sent: Monday, July 09, 2012 1:11 PM
> To: port-xen%netbsd.org@localhost
> Subject: trouble with pygrub after upgrade
>
> Dear NetBSD-Xeners,
> Yesterday I did an upgrade to NetBSD-5.1.2 and had a few issues along the way:
>
> The netbsd-XEN3_DOM0 kernel did not automatically find the wd0a disk as root 
> - I had to build a kernel with root on wd0a.
>
> My bigger problem is that some of my linux vms did not come up - those which 
> did not have pygrub specified came up fine.  Those which used pygrub did not 
> come up.
>
> The error in terminal was:
> xm create bio-Ubuntu64-10.04
> Using config file "./bio-Ubuntu64-10.04".
> Error: Boot loader didn't return any data!
>
> The errorr in xend.log was:
> [2012-07-09 12:13:58 213] DEBUG (XendDomain:449) Adding Domain: 14
> [2012-07-09 12:13:58 213] DEBUG (XendDomainInfo:2149) 
> XendDomainInfo.initDomain: 14 2
> 56
> [2012-07-09 12:13:58 1764] DEBUG (XendBootloader:113) Launching bootloader as 
> ['/usr/
> pkg/bin/pygrub', '--args=root=/dev/hda1 ro ip=:127.0.255.255::::eth0:dhcp 
> fastboot ra
> id=noautodetect', '--output=/var/run/xend/boot/xenbl.5941', '-q', 
> '/BioXen/fs/BioRoot
> 64.fs'].
> [2012-07-09 12:13:58 213] ERROR (XendBootloader:213) Boot loader didn't 
> return any da
> ta!
> [2012-07-09 12:13:58 213] ERROR (XendDomainInfo:467) VM start failed
> Traceback (most recent call last):
>   File "/usr/pkg/lib/python2.7/site-packages/xen/xend/XendDomainInfo.py", 
> line 447, i
> n start
>     XendTask.log_progress(31, 60, self._initDomain)
>   File "/usr/pkg/lib/python2.7/site-packages/xen/xend/XendTask.py", line 209, 
> in log_
> progress
>     retval = func(*args, **kwds)
>   File "/usr/pkg/lib/python2.7/site-packages/xen/xend/XendDomainInfo.py", 
> line 2151,
> in _initDomain
>     self._configureBootloader()
>   File "/usr/pkg/lib/python2.7/site-packages/xen/xend/XendDomainInfo.py", 
> line 2604,
> in _configureBootloader
>     bootloader_args, kernel, ramdisk, args)
>   File "/usr/pkg/lib/python2.7/site-packages/xen/xend/XendBootloader.py", 
> line 214, i
> n bootloader
>     raise VmError, msg
> VmError: Boot loader didn't return any data!
>
> Any hints on how to proceed would be appreciated.
>
> johnh...
>
>