Hi,
i figured out the function perform_initrd_injections does extend the
existing initrd with a few bytes, but the file to be injected is not
inside
of the new generated initrd. Further it's not possible to boot the VM
with
the new generated initrd. But both files are still a gzipped ASCII cpio
archive (SVR4 with no CRC). I can deflate the new generated file
manually.
Do you have any clue what could be the issue? virt-install is working
without injecting the preseed.cfg file.
-rw------- 1 root root 133426176 Dec 19 18:29 initrd-new
-rw------- 1 root root 133425664 Dec 19 18:29 initrd-old
root@ /tmp # hexdump -s 133425664 -C initrd-new
07f3ea00 30 37 30 37 30 31 30 30 30 30 30 30 30 30 30 30
|0707010000000000|
07f3ea10 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30
|0000000000000000|
07f3ea20 30 30 30 30 30 30 30 30 30 30 30 30 30 31 30 30
|0000000000000100|
07f3ea30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30
|0000000000000000|
*
07f3ea60 30 30 30 30 30 42 30 30 30 30 30 30 30 30 54 52
|00000B00000000TR|
07f3ea70 41 49 4c 45 52 21 21 21 00 00 00 00 00 00 00 00
|AILER!!!........|
07f3ea80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
|................|
*
07f3ec00
Kind regards
Claus
def perform_initrd_injections(initrd, injections, scratchdir):
"""
Insert files into the root directory of the initial ram disk
"""
if not injections:
return
if _rhel4_initrd_inject(initrd, injections):
return
tempdir = tempfile.mkdtemp(dir=scratchdir)
os.chmod(tempdir, 0775)
shutil.copy(initrd, '/tmp/initrd-old.gz') # <------ this file
works to boot the VM
for filename in injections:
logging.debug("Copying %s to the initrd.", filename)
shutil.copy(filename, tempdir)
logging.debug("Appending to the initrd.")
find_proc = subprocess.Popen(['find', '.', '-print0'],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
cwd=tempdir)
logging.debug("Found file %s with find_proc.",
find_proc.stdout.read())
cpio_proc = subprocess.Popen(['cpio', '-o', '--null',
'-Hnewc','--quiet'],
stdin=find_proc.stdout,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
cwd=tempdir)
f = open(initrd, 'ab')
gzip_proc = subprocess.Popen(['gzip'], stdin=cpio_proc.stdout,
stdout=f, stderr=subprocess.PIPE)
cpio_proc.wait()
find_proc.wait()
gzip_proc.wait()
f.close()
shutil.rmtree(tempdir)
# copy injected initrd
shutil.copy(initrd, '/tmp/initrd-new.gz') # <------ this file
doesn't work to boot the VM
finderr = find_proc.stderr.read()
cpioerr = cpio_proc.stderr.read()
gziperr = gzip_proc.stderr.read()
if finderr:
logging.debug("find stderr=%s", finderr)
if cpioerr:
logging.debug("cpio stderr=%s", cpioerr)
if gziperr:
logging.debug("gzip stderr=%s", gziperr)
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