X-Git-Url: https://git.grml.org/?p=grml-live.git;a=blobdiff_plain;f=docs%2Fgrml-live.txt;h=0cf9f3b2ecad2e0357b530350bfcf631ffe4010b;hp=fb27bc00fc5b0ba4f99a670757b0fc2508e9fbf5;hb=d900a0e4047e51b27cda624a104ae97a1625c080;hpb=cd6eea7f0f5d029f40d1aff1af62b78f82abbd06 diff --git a/docs/grml-live.txt b/docs/grml-live.txt index fb27bc0..0cf9f3b 100644 --- a/docs/grml-live.txt +++ b/docs/grml-live.txt @@ -102,6 +102,16 @@ supported inside the scripts/hooks/classes at /etc/grml/fai/config. Instead use /etc/grml/grml-live.local for configuration stuff used inside /etc/grml/fai/config. + -d **DATE**:: + +Use specified date as build date information on the ISO instead of the default. +The default is the date when grml-live is being executed (retrieved via +executing 'date +%Y-%m-%d'). The information is stored inside the file +/GRML/grml-version on the ISO, /etc/grml_version in the squashfs file and in all +the bootsplash related files. This option is useful if you want to provide an +ISO with release information for a specific date but have to build it in +advance. Usage example: '-d 2009-10-30' + -F:: Force execution and do not prompt for acknowledgment of configuration. @@ -348,9 +358,11 @@ commandline. /etc/grml/fai/fai.conf Main configuration file for FAI which specifies where all the configuration -files and scripts for FAI/grml-live can be found. By default it is set to -FAI_CONFIGDIR=/etc/grml/fai/config, a directory shipped by grml-live -out-of-the-box so you shouldn't have to configure anything in this file. +files and scripts for FAI/grml-live can be found. By default the configuration +variables are FAI_CONFIG_SRC=file:///etc/grml/fai/config and +FAI_CONFIGDIR=/etc/grml/fai/config - both pointing to a directory shipped by +grml-live out-of-the-box so you shouldn't have to configure anything in this +file. /etc/grml/fai/make-fai-nfsroot.conf @@ -493,7 +505,8 @@ version 3 * squashfs-tools 1:3.2r2-9exp1: LZMA as default, ZLIB support via -nolzma option, file format version 3 -* squashfs-lzma-tools 4.0-1: LZMA as default, no ZLIB support/options, file format 4 +* 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 @@ -505,23 +518,21 @@ 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 4.0-1 on the build system +Using squashfs-lzma-tools 4.0-2 on the build system ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -squashfs-lzma-tools 4.0-1 is available via the grml repositories. It provides -the mksquashfs-lzma and unsquashfs-lzma binaries and the package does NOT -conflict with the squashfs-tools package (you can install both of them at the -same time). +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 does NOT provide support for ZLIB compression. If you need ZLIB support -please use squashfs-tools 1:4.0-1 instead and use the '-z' option of grml-live -or set "SQUASHFS_OPTIONS='-nolzma'" in the grml-live configuration file. +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 @@ -529,15 +540,16 @@ or set "SQUASHFS_OPTIONS='-nolzma'" in the grml-live configuration file. * Kernel 2.6.31-grml[64]: works [NOTE] -Please use squashfs-lzma-tools 4.0-1 if you want to remaster grml releases -MORE RECENT than 2009.05 using the LZMA compression. + +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 1:4.0-1 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 and the package does NOT -conflict with the squashfs-lzma-tools 4.0-1 package (you can install both of +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 @@ -547,15 +559,15 @@ 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 -squashfs-lzma-tools instead. +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]: supposed to work (verification in progress) +* Kernel 2.6.31-grml[64]: works [NOTE] -Please use squashfs-tools 1:4.0-1 if you want to remaster grml releases +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 @@ -754,6 +766,43 @@ If you need help with grml-live or would like to see new features as part of grml-live you can get commercial support via link:http://grml-solutions.com/[Grml Solutions]. +[[lzma-vs-zlib]] +How much is the difference between LZMA and ZLIB compression? +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +ISO size (bs = blocksize): + +[width="45%",cols="3,^2,^2"] +|============================================================ +|ISO |LZMA (256kB bs) |ZLIB +|grml_sid |666M | 771M +|grml_squeeze |659M | 761M +|grml_lenny |624M | 723M +|grml64_sid |677M | 791M +|grml64_squeeze |671M | 785M +|grml64_lenny |639M | 745M +|grml-medium_sid |208M | 236M +|grml-medium_squeeze |206M | 234M +|grml-medium_lenny |193M | 220M +|grml64-medium_sid |213M | 245M +|grml64-medium_squeeze |213M | 244M +|grml64-medium_lenny |201M | 231M +|grml-small_sid |102M | 118M +|grml-small_squeeze |101M | 117M +|grml-small_lenny |97M | 112M +|grml64-small_sid |103M | 120M +|grml64-small_squeeze |103M | 120M +|grml64-small_lenny |99M | 116M +|============================================================ + +Build time of grml-medium's squashfs file (depends on your system, though just +to get the ratio between the different options): + +* 10 minutes and 4 seconds with LZMA default blocksize (128k) +* 7 minutes 27 seconds with LZMA and blocksize 256k +* 6 minutes and 8 seconds with LZMA blocksize 512k +* 1 minute and 40 seconds with ZLIB + [[install-local-files]] How to I install further files into the chroot/ISO? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ @@ -919,8 +968,7 @@ All downloaded files will be cached in /var/cache/approx now. I've a question which isn't answered by this document ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -Don't hesitate to ask on IRC (channel #grml on irc.freenode.org) or just drop me -a mail: +Don't hesitate to contact the author: [[download]] Download / install grml-live as a Debian package