Add no-virt mode to livemedia-creator
This runs anaconda directly, using the --image install feature. The host system should be the same release as the target system in order to avoid unexpected problems.
This commit is contained in:
Brian C. Lane
parent
bfe5ce2813
commit
7149adee25
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@ -36,7 +36,7 @@ to monitor the logs for fatal errors, but may not catch everything.
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HOW IT WORKS
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------------
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The --make-* switches define the final output. Currently only --make-iso
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is working.
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and --make-disk are working.
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You then need to either pass --iso and --ks in order to create a disk image
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using virt-install, or --disk-image to use a disk image from a previous run
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@ -127,6 +127,33 @@ You can also add an update repo, but don't name it updates. Add --proxy to
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it as well.
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ANACONDA IMAGE INSTALL
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----------------------
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You can create images without using virt-install by passing --no-virt on the
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cmdline. This will use Anaconda's image install feature to handle the install.
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There are a couple of things to keep in mind when doing this:
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1. It will be most reliable when building images for the same release that the
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host is running. Because Anaconda has expectations about the system it is
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running under you may encounter strange bugs if you try to build newer or
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older releases.
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2. Make sure selinux is set to permissive or disabled. It won't install
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correctly with selinux set to enforcing yet.
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3. It may totally trash your host. So far I haven't had this happen, but the
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possibility exists that a bug in Anaconda could result in it operating on
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real devices. I recommend running it in a virt or on a system that you can
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afford to lose all data from.
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The logs from anaconda will be placed in an ./anaconda/ directory in either
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the current directory or in the directory used for --logfile
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Example cmdline:
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sudo livemedia-creator --make-iso --no-virt --ks=./fedora-livemedia.ks
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DEBUGGING PROBLEMS
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------------------
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Cleaning up an aborted (ctrl-c) virt-install run (as root):
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@ -144,6 +171,9 @@ You can add --image-only to skip the .iso creation and examine the resulting
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disk image. Or you can pass --keep-image to keep it around after lorax is
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run.
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Cleaning up aborted --no-virt installs can sometimes be accomplished by running
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the anaconda-cleanup script.
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THE FUTURE
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----------
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@ -2,7 +2,7 @@
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#
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# Live Media Creator
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#
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# Copyright (C) 2009 Red Hat, Inc.
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# Copyright (C) 2011 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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@ -46,12 +46,13 @@ from pykickstart.version import makeVersion
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from pylorax.base import DataHolder
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from pylorax.treebuilder import TreeBuilder, RuntimeBuilder
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from pylorax.sysutils import joinpaths, remove, linktree
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from pylorax.imgutils import PartitionMount
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from pylorax.imgutils import PartitionMount, mksparse
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from pylorax.executils import execWithRedirect, execWithCapture
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# Default parameters for rebuilding initramfs, overrice with --dracut-args
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DRACUT_DEFAULT = ["--xz", "--omit", "plymouth"]
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DRACUT_DEFAULT = ["--xz", "--add", "livenet", "--add", "dmsquash-live",
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"--omit", "plymouth"]
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class LogRequestHandler(SocketServer.BaseRequestHandler):
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@ -106,11 +107,14 @@ class LogRequestHandler(SocketServer.BaseRequestHandler):
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"""
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Check a line to see if it contains an error indicating install failure
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"""
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if line.find("Traceback (") > -1 \
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or line.find("Out of memory:") > -1 \
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or line.find("Call Trace:") > -1 \
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or line.find("insufficient disk space:") > -1:
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self.server.log_error = True
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simple_tests = [ "Traceback (",
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"Out of memory:",
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"Call Trace:",
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"insufficient disk space:" ]
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for t in simple_tests:
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if line.find( t ) > -1:
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self.server.log_error = True
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return
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class LogServer(SocketServer.TCPServer):
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@ -343,6 +347,22 @@ class VirtualInstall( object ):
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subprocess.call(["virsh","undefine",self.virt_name])
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def anaconda_install( disk_img, disk_size, kickstart, repo, args ):
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"""
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"""
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# Create the sparse image
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mksparse( disk_img, disk_size * 1024**3 )
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cmd = [ "anaconda", "--image", disk_img, "--kickstart", kickstart,
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"--script", "--repo", repo_url ]
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cmd += args
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log.debug( cmd )
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return execWithRedirect( cmd[0], cmd[1:] )
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def get_kernels( boot_dir ):
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"""
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Examine the vmlinuz-* versions and return a list of them
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@ -434,7 +454,7 @@ if __name__ == '__main__':
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parser = argparse.ArgumentParser( description="Create Live Install Media",
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fromfile_prefix_chars="@" )
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# These two are mutually exclusive, one is required
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# These are mutually exclusive, one is required
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action = parser.add_mutually_exclusive_group( required=True )
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action.add_argument( "--make-iso", action="store_true",
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help="Build a live iso" )
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@ -445,10 +465,9 @@ if __name__ == '__main__':
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action.add_argument( "--make-ami", action="store_true",
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help="Build an ami image" )
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source = parser.add_mutually_exclusive_group( required=True )
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source.add_argument( "--iso", type=os.path.abspath,
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parser.add_argument( "--iso", type=os.path.abspath,
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help="Anaconda installation .iso path to use for virt-install" )
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source.add_argument( "--disk-image", type=os.path.abspath,
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parser.add_argument( "--disk-image", type=os.path.abspath,
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help="Path to disk image to use for creating final image" )
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parser.add_argument( "--ks", action="append", type=os.path.abspath,
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@ -459,6 +478,11 @@ if __name__ == '__main__':
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help="Keep raw disk image after .iso creation" )
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parser.add_argument( "--no-virt", action="store_true",
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help="Use Anaconda's image install instead of virt-install" )
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parser.add_argument( "--proxy",
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help="proxy URL to use for the install" )
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parser.add_argument( "--anaconda-arg", action="append", dest="anaconda_args",
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help="Additional argument to pass to anaconda (no-virt "
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"mode). Pass once for each argument" )
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parser.add_argument( "--logfile", default="./livemedia.log",
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type=os.path.abspath,
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@ -551,10 +575,6 @@ if __name__ == '__main__':
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log.error( "The disk image {0} is missing.".format( opts.disk_image ) )
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sys.exit( 1 )
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if opts.no_virt:
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log.error( "--no-virt is not yet implemented." )
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sys.exit( 1 )
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if opts.make_appliance:
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log.error( "--make-appliance is not yet implemented." )
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sys.exit( 1 )
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@ -563,14 +583,12 @@ if __name__ == '__main__':
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log.error( "--make-ami is not yet implemented." )
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sys.exit( 1 )
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# Use virt-install to make the disk image
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if opts.iso:
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disk_img = tempfile.mktemp( prefix="disk", suffix=".img", dir=opts.tmp )
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install_log = os.path.abspath(os.path.dirname(opts.logfile))+"/virt-install.log"
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log.info( "disk_img = {0}".format(disk_img) )
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log.info( "install_log = {0}".format(install_log) )
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if not opts.no_virt and not opts.iso and not opts.disk_image:
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log.error( "virt-install needs an install iso." )
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sys.exit( 1 )
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# Make the disk image
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if not opts.disk_image:
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# Parse the kickstart to get the partition sizes
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ks_version = makeVersion()
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ks = KickstartParser( ks_version, errorsAreFatal=False, missingIncludeIsFatal=False )
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@ -578,19 +596,62 @@ if __name__ == '__main__':
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disk_size = 1 + (sum( [p.size for p in ks.handler.partition.partitions] ) / 1024)
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log.info( "disk_size = {0}GB".format(disk_size) )
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iso_mount = IsoMountpoint( opts.iso )
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log_monitor = LogMonitor( install_log )
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if ks.handler.method.method != "url":
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log.error( "Only url install method is currently supported. Please "
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"fix your kickstart file." )
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sys.exit( 1 )
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repo_url = ks.handler.method.url
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virt = VirtualInstall( iso_mount, opts.ks, disk_img, disk_size,
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opts.kernel_args, opts.ram, opts.vnc,
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log_check = log_monitor.server.log_check,
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virtio_host = log_monitor.host,
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virtio_port = log_monitor.port )
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virt.destroy()
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log_monitor.shutdown()
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iso_mount.umount()
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disk_img = tempfile.mktemp( prefix="disk", suffix=".img", dir=opts.tmp )
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install_log = os.path.abspath(os.path.dirname(opts.logfile))+"/virt-install.log"
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if log_monitor.server.log_check():
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log.info( "disk_img = {0}".format(disk_img) )
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log.info( "install_log = {0}".format(install_log) )
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if opts.no_virt:
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anaconda_args = []
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if opts.anaconda_args:
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for arg in opts.anaconda_args:
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anaconda_args += arg.split(" ", 1)
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if opts.proxy:
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anaconda_args += [ "--proxy", opts.proxy ]
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# Use anaconda's image install
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install_error = anaconda_install( disk_img, disk_size, opts.ks[0],
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repo_url, anaconda_args )
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# Move the anaconda logs over to a log directory
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log_dir = os.path.abspath(os.path.dirname(opts.logfile))
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log_anaconda = joinpaths( log_dir, "anaconda" )
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if not os.path.isdir( log_anaconda ):
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os.mkdir( log_anaconda )
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for l in ["anaconda.log", "ifcfg.log", "program.log", "storage.log",
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"yum.log"]:
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if os.path.exists( "/tmp/"+l ):
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shutil.copy2( "/tmp/"+l, log_anaconda )
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os.unlink( "/tmp/"+l )
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else:
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iso_mount = IsoMountpoint( opts.iso )
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log_monitor = LogMonitor( install_log )
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kernel_args = ""
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if opts.kernel_args:
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kernel_args += opts.kernel_args
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if opts.proxy:
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kernel_args += " proxy="+opts.proxy
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virt = VirtualInstall( iso_mount, opts.ks, disk_img, disk_size,
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kernel_args, opts.ram, opts.vnc,
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log_check = log_monitor.server.log_check,
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virtio_host = log_monitor.host,
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virtio_port = log_monitor.port )
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virt.destroy()
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log_monitor.shutdown()
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iso_mount.umount()
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install_error = log_monitor.server.log_check()
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if install_error:
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log.error( "Install failed" )
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if not opts.keep_image:
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log.info( "Removing bad disk image" )
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@ -616,7 +677,7 @@ if __name__ == '__main__':
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log.info("SUMMARY")
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log.info("-------")
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log.info("Logs are in {0}".format(os.path.abspath(os.path.dirname(opts.logfile))))
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if opts.keep_image:
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if opts.keep_image or opts.make_disk:
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log.info("Disk image is at {0}".format(disk_img))
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else:
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log.info("Disk image erased")
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