-To make it easier to track problems this section documents current state of
-grml-live playing together with squashfs-tools / squashfs-lzma-tools (for
-building the compressed file) and the kernel version. Documentation of this
-section is up2date by 7rd of september 2009, please report any bugs you
-encounter.
-
-Difference between squashfs-lzma-tools and squashfs-tools
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-Whereas the ZLIB compression is much faster in the build process, the LZMA
-compression provides a smaller resulting ISO. If you're wondering: the official
-Grml builds use the LZMA compression.
-
-Squashfs-tools was introduced in Debian and once provided support for LZMA
-compression. Sadly LZMA compression within squashfs-tools became unsupported and
-therefore squashfs-lzma-tools had to be introduced by the Grml team. Different
-kernel versions provide different squashfs file formats (version 3.x for kernel
-versions until 2.6.28-grml[64], since kernel 2.6.31-grml[64] it's the 4.x
-format).
-
-If you're wondering which package supports what, here's a short overview:
-
-* squashfs-tools 1:4.0-1: ZLIB as default, no LZMA support/options, file format
-version 4
-
-* squashfs-tools 1:3.3-7: ZLIB as default, no LZMA support/options, file format
-version 3
-
-* squashfs-tools 1:3.2r2-9exp1: LZMA as default, ZLIB support via -nolzma
-option, file format version 3
-
-* squashfs-lzma-tools 4.0-2: ZLIB as default, LZMA support via -lzma option,
-file format version 4
-
-* squashfs-lzma-tools 3.3-1: LZMA as default, ZLIB support via -nolzma option,
-file format version 3
-
-Depending on the kernel version you want to use you need different versions
-squashfs-tools/squashfs-lzma-tools. Yes, that's pretty a mess (don't ask how
-much this sucks for us developers) - though this is supposed to calm down with
-the recent integration of squashfs file format 4 in the mainline kernel. Support
-for LZMA is pending and should dramatically simplify the situation for
-developers as well as users as soon as it's available mainline.
-
-Using squashfs-lzma-tools 4.0-2 on the build system
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-squashfs-lzma-tools 4.0-2 is available via the grml repositories. It provides
-the mksquashfs-lzma and unsquashfs-lzma binaries. The package does NOT conflict
-with Debian's squashfs-tools package (you can install both of them at the same
-time).
-
-The packages can be downloaded from
-link:http://deb.grml.org/pool/main/s/squashfs-lzma-tools/[http://deb.grml.org/pool/main/s/squashfs-lzma-tools/]
-
-It provides support for the new squashfs file format version 4 and therefore
-requires kernel versions newer than 2.6.28-grml[64]. It supports LZMA as well as
-ZLIB compression. Just use the defaults for enabling LZMA or use grml-live's
-'-z' option if you want to use ZLIB instead.
-
-* Kernel 2.6.23-grml[64]: does not work
-* Kernel 2.6.26-grml[64]: does not work
-* Kernel 2.6.28-grml[64]: does not work
-* Kernel 2.6.31-grml[64]: works
-* Kernel 2.6.33-grml[64]: works
-
-[NOTE]
-
-Please use squashfs-lzma-tools >=4.0-2 from Grml if you want to remaster any
-grml release being MORE RECENT than 2009.05.
-
-Using squashfs-tools 1:4.0-X on the build system
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-squashfs-tools >=1:4.0-1 is available in Debian/unstable and Debian/testing. It
-provides the mksquashfs and unsquashfs binaries. The package does NOT
-conflict with the squashfs-lzma-tools 4.0-2 package (you can install both of
-them at the same time).
-
-The packages can be downloaded from
-link:ftp://ftp.de.debian.org/debian/pool/main/s/squashfs-tools/[ftp://ftp.de.debian.org/debian/pool/main/s/squashfs-tools/]
-
-It provides support for the new squashfs file format version 4 and therefore
-requires kernel versions newer than 2.6.28-grml[64].
-
-It does NOT support LZMA compression. If you need LZMA support please use
-Grml's squashfs-lzma-tools (see section above) instead.
-
-* Kernel 2.6.23-grml[64]: does not work
-* Kernel 2.6.26-grml[64]: does not work
-* Kernel 2.6.28-grml[64]: does not work
-* Kernel 2.6.31-grml[64]: works
-* Kernel 2.6.33-grml[64]: works
-
-[NOTE]
-Please use squashfs-tools >=1:4.0-1 only if you want to remaster grml releases
-MORE RECENT than 2009.05 using the ZLIB compression.
-
-Using squashfs-lzma-tools 3.3-1 on the build system
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-squashfs-lzma-tools 3.3-1 from the grml repository supports kernel
-2.6.26-grml[64] and 2.6.28-grml[64] using both LZMA and ZLIB (-nolzma)
-compression. It's the recommended package for building ISOs with grml-live
-currently!
-
-The packages can be downloaded from
-link:http://deb.grml.org/pool/main/s/squashfs-lzma/[http://deb.grml.org/pool/main/s/squashfs-lzma/].
-
-[NOTE]
-Please use squashfs-lzma-tools 3.3-1 if you want to remaster grml release
-2008.11 or 2009.05.
-
-Using squashfs-tools 1:3.3-7 on the build system
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-squashfs-tools 1:3.3-7 is available through
-http://grml.org/squashfs/squashfs-tools_3.3-7_i386.deb (for x86) or
-http://grml.org/squashfs/squashfs-tools_3.3-7_amd64.deb (for amd64) [both build
-on and for Debian/etch but working with testing and unstable as well].
-
-Please notice that squashfs-tools 1:3.3-7 does NOT support LZMA compression at
-all (so you won't be able to remaster release 2008.11 and 2009.05 using LZMA for
-example). The -nolzma option of mksquashfs is not available therefore (even
-though grml-live will deactivate it for you automatically anyway). Please use
-squashfs-lzma-tools instead.
-
-* Kernel 2.6.23-grml: does NOT work, please use squashfs-tools 1:3.2r2-9exp1
- instead if you still want to use kernel 2.6.23 (not
- recommended)
-* Kernel 2.6.26-grml: works (without LZMA compression only of course!)
-* Kernel 2.6.28-grml: works (without LZMA compression only of course!)
-
-Using squashfs-tools 1:3.2r2-9exp1 on the build system
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-squashfs-tools 1:3.2r2-9exp1 is available via the grml-testing repository,
-running:
-
- # aptitude install squashfs-tools=1:3.2r2-9exp1
-
-or directly via downloading the files
-http://grml.org/squashfs/squashfs-tools_3.2r2-9exp1_i386.deb (for x86) or
-http://grml.org/squashfs/squashfs-tools_3.2r2-9exp1_amd64.deb (for amd64).
-
-Using with ZLIB compression (SQUASHFS_OPTIONS='-nolzma' or -z
-option in grml-live cmdline):
-
-* Kernel 2.6.23-grml: works
-* Kernel 2.6.26-grml: works
-* Kernel 2.6.28-grml: supposed to work (not verified though)
-
-Using with LZMA compression:
-
-* Kernel 2.6.23-grml: works
-* Kernel 2.6.26-grml: does NOT work, please use ZLIB mode instead or switch
- to Debian package squashfs-lzma-tools 3.3-1 (see section above).
-* Kernel 2.6.28-grml: does NOT work, please use ZLIB mode instead or switch
- to Debian package squashfs-lzma-tools 3.3-1 (see section above).