Am 16.03.2011 17:12, schrieb KESHAV P.R.: > On Wed, Mar 16, 2011 at 20:12, KESHAV P.R. <skodabenz@xxxxxxxxx> wrote: >> On Wed, Mar 16, 2011 at 20:09, Gaetan Bisson <bisson@xxxxxxxxxxxxx> wrote: >>> [2011-03-16 19:58:23 +0530] KESHAV P.R.: >>>> Now that kernel 2.6.38 supports xz (lzma2, not lzma), how >>>> about using it as the default compression for the kernel and >>>> initramfs. mkinitcpio simply requires COMPRESSION="xz" to generate >>>> lzma2 compressed initramfs. But xz compressed kernel requires change >>>> in the config option and once module-init-toools supports xz >>>> compressed modules we can say good bye to gzip. >>> > > mkinitcpio.conf requires COMPRESSION="xz --check=crc32" , not simply > "xz" since crc64 (default) checksum is not supported by kernel > de-compressor. See > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob;f=Documentation/xz.txt;hb=HEAD Thanks for this info. There is one request to remove the "-9" default compression ratio, so this is probably a good time to change how compression is handled for mkinitcpio. The advantage of xz over lzma shouldn't be that big in any case.
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