almalinux/lorax
13
0
Fork 0
Code Issues Pull Requests Releases Activity

livemedia-creator: Mount iso if rootfs is LiveOS

Browse Source 
In the latest method for booting the rootfs is in the LiveOS
directory of the media, not appended to the initrd. Detect this
and mount the iso and pass the CDLABEL to virt-install.
This commit is contained in:
Brian C. Lane 2012-01-25 17:23:25 -08:00
parent 681f67f954
commit befdc218ac
1 changed files with 41 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
src/sbin/livemedia-creator
View File

@ -2,7 +2,7 @@
#
# Live Media Creator
#
# Copyright (C) 2011 Red Hat, Inc.
# Copyright (C) 2011-2012 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@ -44,7 +44,7 @@ from pykickstart.version import makeVersion
# Use the Lorax treebuilder branch for iso creation
from pylorax.base import DataHolder
from pylorax.treebuilder import TreeBuilder, RuntimeBuilder
from pylorax.treebuilder import TreeBuilder, RuntimeBuilder, udev_escape
from pylorax.sysutils import joinpaths, remove, linktree
from pylorax.imgutils import PartitionMount, mksparse
from pylorax.executils import execWithRedirect, execWithCapture
@ -158,8 +158,11 @@ class IsoMountpoint(object):
"""
Mount the iso on a temporary directory and check to make sure the
vmlinuz and initrd.img files exist
Check the iso for a LiveOS directory and set a flag.
Extract the iso's label.
"""
def __init__( self, iso_path ):
self.label = None
self.iso_path = iso_path
self.mount_dir = tempfile.mkdtemp()
if not self.mount_dir:
@ -176,6 +179,7 @@ class IsoMountpoint(object):
self.repo = self.mount_dir
else:
self.repo = None
self.liveos = os.path.isdir( self.mount_dir+"/LiveOS" )
try:
for f in [self.kernel, self.initrd]:
@ -185,12 +189,27 @@ class IsoMountpoint(object):
self.umount()
raise
self.get_iso_label()
def umount( self ):
cmd = ["umount", self.mount_dir]
log.debug( cmd )
execWithRedirect( cmd[0], cmd[1:] )
os.rmdir( self.mount_dir )
def get_iso_label( self ):
"""
Get the iso's label using isoinfo
"""
cmd = [ "isoinfo", "-d", "-i", self.iso_path ]
log.debug( cmd )
isoinfo_output = execWithCapture( cmd[0], cmd[1:] )
log.debug( isoinfo_output )
for line in isoinfo_output.splitlines():
if line.startswith("Volume id: "):
self.label = line[11:]
return
class ImageMount(object):
"""
@ -297,22 +316,38 @@ class VirtualInstall( object ):
for ks in ks_paths:
cmd.append("--initrd-inject")
cmd.append(ks)
disk_opts = "path={0}".format(disk_img)
disk_opts += ",format=raw"
if not os.path.isfile(disk_img):
disk_opts += ",size={0}".format(img_size)
cmd.append("--disk")
cmd.append(disk_opts)
if iso.liveos:
disk_opts = "path={0},device=cdrom".format(iso.iso_path)
cmd.append("--disk")
cmd.append(disk_opts)
extra_args = "ks=file:/{0}".format(os.path.basename(ks_paths[0]))
if kernel_args:
extra_args += " "+kernel_args
if not vnc:
extra_args += " console=/dev/ttyS0"
if iso.liveos:
extra_args += " root=live:CDLABEL={0}".format(udev_escape(iso.label))
cmd.append("--extra-args")
cmd.append(extra_args)
cmd.append("--location")
cmd.append(iso.mount_dir)
channel_args = "tcp,host={0}:{1},mode=connect,target_type=virtio" \
",name=org.fedoraproject.anaconda.log.0".format(
virtio_host, virtio_port)
[cmd.append(o) for o in ["--disk", disk_opts,
"--extra-args", extra_args,
"--location", iso.mount_dir,
"--channel", channel_args]]
cmd.append("--channel")
cmd.append(channel_args)
log.debug( cmd )
rc = execWithRedirect( cmd[0], cmd[1:] )