Package: linux-2.6
Severity: wishlist
Tags: experimental
User: debian-live@live.debian.org
Usertags: kernel

xz (a.k.a. LZMA2) is a shiny new compression algorithm that yields
smaller files than gzip, and is faster than bzip2.

For Debian Live images, especially, it would be nice to have better
compression of the squashfs root filesystem. This can be done by
setting

SQUASHFS_XZ=y

This was introduced between .37 and .38-rc1.

Less important, but probably Nice To Have, are squashfs LZO support,
ramdisk XZ support, and this "BCJ" (a.k.a. DEC, below) stuff, which
appears to allow arch-specific tweaks to compact the squashfs further.

CONFIG_SQUASHFS_LZO=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_RD_XZ=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
CONFIG_XZ_DEC_BCJ=y
CONFIG_XZ_DEC_TEST=m

-- System Information:
Debian Release: 6.0
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.34-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_AU.utf8, LC_CTYPE=en_AU.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash



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