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Create runtime using imgutils and merge it with initramfs

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This commit is contained in:
Will Woods 2011-05-04 18:51:58 -04:00
parent 3d5a3edb67
commit bd1fd1e139
1 changed files with 45 additions and 16 deletions
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61
src/pylorax/__init__.py
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@ -44,6 +44,7 @@ import yum
import yumhelper
import ltmpl
import imgutils
import constants
from sysutils import *
@ -185,7 +186,7 @@ class Lorax(BaseLoraxClass):
self.product = product
logger.debug("product data: %s" % product)
logger.info("parsing the template")
logger.info("parsing the runtime template")
tfile = joinpaths(self.conf.get("lorax", "sharedir"),
self.conf.get("templates", "ramdisk"))
@ -275,32 +276,38 @@ class Lorax(BaseLoraxClass):
# XXX do we need to backup installtree here?
logger.info("getting list of not required packages")
remove = template.getdata("remove", mode="lines")
self.installtree.remove_packages(remove)
removepkgs = template.getdata("remove", mode="lines")
self.installtree.remove_packages(removepkgs)
logger.info("cleaning up python files")
self.installtree.cleanup_python_files()
# Set up the TreeInfo object - we're about to start building
treeinfo = TreeInfo(self.product.name, self.product.version,
self.product.variant, self.arch.basearch)
logger.info("creating the runtime image")
runtime = joinpaths(self.workdir, "install.img")
ctype = self.conf.get("compression", "type")
cspeed = self.conf.get("compression", "speed")
self.installtree.compress(runtime, ctype, cspeed)
cpfile(runtime, joinpaths(self.outputdir, "images/install.img"))
treeinfo.add_section("stage2", {"mainimage": "images/install.img"})
# TODO: different img styles / create_runtime implementations
runtimedir = joinpaths(self.workdir, "runtime")
# FIXME: compression options (type, speed, etc.)
create_runtime(self.installtree.root, runtimedir)
logger.info("building output tree and boot images")
logger.info("preparing to build output tree and boot images")
treebuilder = TreeBuilder(product, arch,
self.installtree.root, self.outputdir)
# TODO: different image styles may do this part differently
logger.info("rebuilding initramfs images")
treebuilder.rebuild_initrds(add_args=["--xz", "--add", "btrfs"])
# TODO: keep small initramfs for split initramfs/runtime media
logger.info("adding runtime to initrds")
treebuilder.initrd_append(runtimedir)
logger.info("populating output tree and building boot images")
treebuilder.build()
logger.info("writing .treeinfo")
treeinfo = TreeInfo(self.product.name, self.product.version,
self.product.variant, self.arch.basearch)
for section, data in treebuilder.treeinfo_data:
treeinfo.add_section(section, data)
# write .treeinfo
treeinfo.write(joinpaths(self.outputdir, ".treeinfo"))
def get_buildarch(self):
@ -319,3 +326,25 @@ class Lorax(BaseLoraxClass):
buildarch = os.uname()[4]
return buildarch
def create_runtime(inroot, outdir):
runtime = "squashfs.img"
# these exact paths are required by dracut
livedir = "LiveOS"
rootfs = "rootfs.img"
cmdline = "etc/cmdline"
# make live rootfs image
fssize = 2 * (1024*1024*1024) # 2GB sparse file compresses down to nothin'
livedir = joinpaths(outdir, livedir)
os.makedirs(livedir)
imgutils.mkext4img(inroot, joinpaths(livedir, rootfs),
label="Anaconda", size=fssize)
# squash the live image
imgutils.mksquashfs(livedir, joinpaths(outdir, runtime),
compressargs=["-no-progress"])
remove(livedir)
# make the cmdline file
os.makedirs(joinpaths(outdir, os.path.dirname(cmdline)))
with open(joinpaths(outdir, cmdline), "w") as fobj:
fobj.write("root=live:/%s\n" % runtime)
return (runtime, cmdline)