Created attachment 765284 [details]
Patch for pygrub.

Description of problem:

Note, this looks like bug 745335 but it is not.

Anyhow, when trying to start a guest using 'xl':

[root@tst031 ~]# more test.xm
memory=1024
bootloader="pygrub"
maxmem=2048
maxvcpus = 2
vcpus = 2
name = "F19-32"
vif = [ 'mac=00:0f:4b:01:00:87,bridge=switch' ]
disk= ['phy:/dev/vg_guests/disk,hda,w']
vfb = [ 'vnc=1, vnclisten=0.0.0.0,vncunused=1']

I get:

[root@tst031 ~]# xl create -c test.xm
Parsing config from test.xm
libxl: error: libxl_bootloader.c:628:bootloader_finished: bootloader failed - consult logfile /var/log/xen/bootloader.14.log
libxl: error: libxl_exec.c:118:libxl_report_child_exitstatus: bootloader [4438] exited with error status 1
libxl: error: libxl_create.c:919:domcreate_rebuild_done: cannot (re-)build domain: -3
libxl: error: libxl_dom.c:35:libxl__domain_type: unable to get domain type for domid=14
Unable to attach console
libxl: error: libxl_exec.c:118:libxl_report_child_exitstatus: console child [0] exited with error status 1


[root@tst031 ~]# cat /var/log/xen/bootloader.14.log
Using <class 'grub.GrubConf.Grub2ConfigFile'> to parse /grub2/grub.cfg
Traceback (most recent call last):
  File "/usr/lib64/xen/bin/pygrub", line 865, in <module>
    raise RuntimeError, "Unable to find partition containing kernel"
RuntimeError: Unable to find partition containing kernel


If I use 'virsh' instead:

[root@tst031 ~]# virsh start F19-32
error: Failed to start domain F19-32
error: internal error libxenlight failed to create new domain 'F19-32'



Version-Release number of selected component (if applicable):

The patch titled "pygrub/GrubConf: fix boot problem for fedora 19	grub.cfg (2nd attempt)" (http://lists.xen.org/archives/html/xen-devel/2013-06/msg02348.html) should fix it.



How reproducible:
100%

Steps to Reproduce:
1. Install guest (you will run in bug #977987), there is a work-around to use "-x vnc"
2. Boot the PV guest
3.

Actual results:

Parsing config from test.xm
libxl: error: libxl_bootloader.c:628:bootloader_finished: bootloader failed - consult logfile /var/log/xen/bootloader.14.log
libxl: error: libxl_exec.c:118:libxl_report_child_exitstatus: bootloader [4438] exited with error status 1
libxl: error: libxl_create.c:919:domcreate_rebuild_done: cannot (re-)build domain: -3
libxl: error: libxl_dom.c:35:libxl__domain_type: unable to get domain type for domid=14
Unable to attach console
libxl: error: libxl_exec.c:118:libxl_report_child_exitstatus: console child [0] exited with error status 1


Expected results:

A menu of GRUB if using 'xl'

Additional info:

    pyGRUB  version 0.6
 ┌────────────────────────────────────────────────────────────────────────┐
 │ Fedora, with Linux 3.9.5-301.fc19.i686.PAE                             │
 │ Fedora, with Linux 0-rescue-0235a1c6442e44ed9a1d935f5ab44348           │
 │                                                                        │
 │                                                                        │
 │                                                                        │
 │                                                                        │
 │                                                                        │
 │                                                                        │
 └────────────────────────────────────────────────────────────────────────┘
     Use the ^ and ┴ keys to select which entry is highlighted.
     Press enter to boot the selected OS, 'e' to edit the
     commands before booting, 'a' to modify the kernel arguments
     before booting, or 'c' for a command line.

and if using 'virsh' then

[root@tst031 ~]# virsh start F19-32
Domain F19-32 started


Additional info: