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Fix grub install

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This commit is contained in:
Anders Ingemann 2013-09-25 23:43:02 +02:00
parent 3c32310346
commit e740a3b4d8
1 changed files with 22 additions and 23 deletions
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45
providers/virtualbox/tasks/boot.py
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@ -16,18 +16,29 @@ class ConfigureGrub(Task):
boot_dir = os.path.join(info.root, 'boot')
grub_dir = os.path.join(boot_dir, 'grub')
# if type(info.volume) is LoopbackVolume:
if isinstance(info.volume, LoopbackVolume):
from partitionmaps.none import NoPartitions
def remount(volume, fn):
# GRUB cannot deal with installing to loopback devices
# so we fake a real harddisk with dmsetup.
# Guide here: http://ebroder.net/2009/08/04/installing-grub-onto-a-disk-image/
info.volume.unmount()
info.volume.unmap()
info.volume.link_dm_node()
info.volume.map()
info.volume.mount_root(info.root)
info.volume.mount_boot()
info.volume.mount_specials()
volume.unmount_specials()
p_map = volume.partition_map
if hasattr(p_map, 'boot'):
boot_dir = p_map.boot.mount_dir
p_map.boot.unmount()
p_map.root.unmount()
if isinstance(self.partition_map, NoPartitions):
p_map.unmap()
fn()
p_map.map()
p_map.root.mount(info.root)
if hasattr(p_map, 'boot'):
p_map.boot.mount(boot_dir)
volume.mount_specials()
if isinstance(info.volume, LoopbackVolume):
remount(info.volume, info.volume.link_dm_node)
try:
[device_path] = log_check_call(['readlink', '-f', info.volume.device_path])
device_map_path = os.path.join(grub_dir, 'device.map')
@ -46,20 +57,8 @@ class ConfigureGrub(Task):
log_check_call(['/usr/sbin/chroot', info.root, '/usr/sbin/update-grub'])
except Exception as e:
if isinstance(info.volume, LoopbackVolume):
info.volume.unmount()
info.volume.unmap()
info.volume.unlink_dm_node()
info.volume.map()
info.volume.mount_root(info.root)
info.volume.mount_boot()
info.volume.mount_specials()
remount(info.volume, info.volume.unlink_dm_node)
raise e
if isinstance(info.volume, LoopbackVolume):
info.volume.unmount()
info.volume.unmap()
info.volume.unlink_dm_node()
info.volume.map()
info.volume.mount_root(info.root)
info.volume.mount_boot()
info.volume.mount_specials()
remount(info.volume, info.volume.unlink_dm_node)