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 . - Keshav