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Create dracut initramfs for each kernel (#722466)

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This commit is contained in:
Martin Gracik 2011-07-18 13:48:56 +02:00
parent 23f9879b0e
commit d9e9b0e57c
2 changed files with 21 additions and 15 deletions
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2
src/pylorax/__init__.py
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@ -305,7 +305,7 @@ class Lorax(BaseLoraxClass):
logger.info("compressing modules")
self.installtree.compress_modules(kernel)
logger.info("running depmod")
logger.info("running depmod for kernel %s" % kernel.version)
self.installtree.run_depmod(kernel)
# move repos

34
src/pylorax/installtree.py
View File

@ -46,7 +46,7 @@ class LoraxInstallTree(BaseLoraxClass):
self.basearch = basearch
self.libdir = libdir
self.workdir = workdir
self.initramfs = None
self.initramfs = {}
self.lcmds = constants.LoraxRequiredCommands()
@ -548,15 +548,19 @@ class LoraxInstallTree(BaseLoraxClass):
rc = compressed.wait()
def make_dracut_initramfs(self):
outfile = "/tmp/initramfs.img" # inside the chroot
logger.debug("chrooting into installtree to create initramfs.img")
subprocess.check_call(["chroot", self.root,
"/sbin/dracut", "--nomdadmconf", "--nolvmconf",
"--xz", "--modules", "base dmsquash-live",
outfile, self.kernels[0].version])
# move output file into installtree workdir
self.initramfs = joinpaths(self.workdir, "initramfs.img")
shutil.move(joinpaths(self.root, outfile), self.initramfs)
for kernel in self.kernels:
outfile = "/tmp/initramfs.img" # inside the chroot
logger.debug("chrooting into installtree to create initramfs.img")
subprocess.check_call(["chroot", self.root, "/sbin/dracut",
"--nomdadmconf", "--nolvmconf",
"--xz", "--modules", "base dmsquash-live",
outfile, kernel.version])
# move output file into installtree workdir
dstdir = joinpaths(self.workdir, kernel.version)
os.makedirs(dstdir)
self.initramfs[kernel.version] = joinpaths(dstdir, "initramfs.img")
shutil.move(joinpaths(self.root, outfile),
self.initramfs[kernel.version])
def make_squashfs_runtime(self, runtime, kernel, type, args):
"""This is a little complicated, but dracut wants to find a squashfs
@ -567,7 +571,8 @@ class LoraxInstallTree(BaseLoraxClass):
initramfs at boot time.
"""
# Check to be sure we have a dracut initramfs to use
assert self.initramfs, "make_dracut_initramfs has not been run!"
assert self.initramfs.get(kernel.version), \
"no dracut initramfs for kernel %s" % kernel.version
# These exact names are required by dracut
squashname = "squashfs.img"
@ -630,15 +635,16 @@ class LoraxInstallTree(BaseLoraxClass):
# create final image
logger.debug("concatenating dracut initramfs and squashfs initramfs")
logger.debug("initramfs.img size = %i", os.stat(self.initramfs).st_size)
logger.debug("initramfs.img size = %i",
os.stat(self.initramfs[kernel.version]).st_size)
with open(runtime.fpath, "wb") as output:
for f in self.initramfs, squash_cpio:
for f in self.initramfs[kernel.version], squash_cpio:
with open(f, "rb") as fobj:
data = fobj.read(4096)
while data:
output.write(data)
data = fobj.read(4096)
os.remove(self.initramfs)
os.remove(self.initramfs[kernel.version])
os.remove(squash_cpio)
@property