almalinux/lorax
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Use xz when compressing the initrd

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This makes the image a lot smaller.
This commit is contained in:
Martin Gracik 2011-02-17 15:53:03 +01:00
parent ee955f3ad1
commit a9e52a70f4
2 changed files with 12 additions and 4 deletions
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1
lorax.spec
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@ -26,6 +26,7 @@ Requires: util-linux-ng
Requires: dosfstools Requires: dosfstools
Requires: genisoimage Requires: genisoimage
Requires: parted Requires: parted
Requires: pyliblzma
%description %description
Lorax is a tool for creating the anaconda install images. Lorax is a tool for creating the anaconda install images.

15
src/pylorax/installtree.py
View File

@ -26,6 +26,7 @@ import sys
import os import os
import shutil import shutil
import gzip import gzip
import lzma
import re import re
import glob import glob
import time import time
@ -478,7 +479,7 @@ class LoraxInstallTree(BaseLoraxClass):
dst = joinpaths(self.root, "sbin") dst = joinpaths(self.root, "sbin")
shutil.copy2(src, dst) shutil.copy2(src, dst)
def compress(self, initrd, kernel): def compress(self, initrd, kernel, type="xz"):
chdir = lambda: os.chdir(self.root) chdir = lambda: os.chdir(self.root)
start = time.time() start = time.time()
@ -493,9 +494,15 @@ class LoraxInstallTree(BaseLoraxClass):
stdin=find.stdout, stdout=subprocess.PIPE, stdin=find.stdout, stdout=subprocess.PIPE,
preexec_fn=chdir) preexec_fn=chdir)
gzipped = gzip.open(initrd.fpath, "wb") if type == "gzip":
gzipped.write(cpio.stdout.read()) compressed = gzip.open(initrd.fpath, "wb")
gzipped.close() elif type == "xz":
compressed = lzma.LZMAFile(initrd.fpath, "w",
options={"format":"xz", "check":"crc32",
"level":9})
compressed.write(cpio.stdout.read())
compressed.close()
# move modules out of the tree again # move modules out of the tree again
shutil.move(joinpaths(self.root, "modules", kernel.version), shutil.move(joinpaths(self.root, "modules", kernel.version),