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authorMystery Man <unknown@mandriva.org>2005-09-02 22:32:32 +0000
committerMystery Man <unknown@mandriva.org>2005-09-02 22:32:32 +0000
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-Well here is a little description of what DrakX needs to work in comparison
-to the RH newt install.
-
-********************************************************************************
-* CVS **************************************************************************
-********************************************************************************
-Like all good free software, DrakX is in CVS :)
-
-You can access it at http://www.mandrivalinux.com/cgi-bin/cvsweb.cgi/gi
-
-or via
-
-export CVS_RSH=ssh
-export CVSROOT=:ext:anoncvs@cvs.mandriva.com:/cooker
-cvs checkout gi
- (enter password 'cvs')
-
-
-This is only read-only access. If you want more, tell me (pixel@mandriva.com)
-
-Alas, all is not in CVS, a lot of things come from rpm packages which you must
-install.
-
-Please note that redoing *all* the stuff is not for the faint of heart. I myself
-sometimes wonder what the whole make does :-%
-Instead, changing some .pm files is quite easy (nice interpreted language)
-
-********************************************************************************
-* Making your custom install ***************************************************
-********************************************************************************
-If you have your own rpms you want to add, or make your own updated cdrom, you
-just have to issue:
-
-% gendistrib --noclean --distrib <DIRS>
-
-Where <DIRS> is the root of all the media that the install will see, this first
-one is the main one :
-
-(1) network or 1-cdrom installs
- DIRS == the root directory of the Distribution
-
-(2) multi-cdrom install
- DIRS == the root directories of all the media that the install will see
-
-``gendistrib'' will scan the file media/media_info/hdlists in the main root
-directory (the first one in DIRS) to search for all media used. Typically you
-use media/main for RPM packages repository.
-For multi-cd, please use media/main or media/foo, etc.
-For one CD or a network/hd volume, please use media/main.
-
-Optionnally, you can modify ``media/media_info/rpmsrate''; this file manages
-the relative importance of the files, and thus their installation or not.
-
-To modify the code of stage2, use "misc/mdkinst_stage2_tool install/stage2" to generate "install/stage2/live".
-When you are done use "misc/mdkinst_stage2_tool install/stage2" again, the "rm -rf install/stage/live".
-See below for information about these files.
-
-********************************************************************************
-* FILES ************************************************************************
-********************************************************************************
-First here are the different things needed :
-
-media/media_info/hdlists
- description of the available install media.
- format is one line for one medium as
- <hdlist_name> <rpms_directory> <description>
- <hdlist_name> should be match regexp /hdlist\S*.cz2?/
- for example (two cd install) you get
- hdlist1.cz Mandrake/RPMS1 Boot CD
- hdlist2.cz Mandrake/RPMS2 Extension CD
-
-media/media_info/hdlist*.cz
- table of rpm's headers, referred by ``hdlists''
- their contents can be listed using ``packdrake -l <hdlist_file>'' or
- or ``parsehdlist <hdlist_file>''.
- ! Need to be remade when media/main changes (with ``gendistrib'') !
-
-media/media_info/depslist.ordered
- for each packages, tell which package it depends on. Also contains the
- size for some (obscure) bloody reasons.
- ! Need to be remade when media/main changes !
- (with ``gendistrib --noclean --distrib .'')
-
-media/media_info/compssUsers
-
-media/media_info/rpmsrate
- ranks and classify packages, so that the installer will know which
- ones to install. format is :
- <intern_group>
- <level> <packages>
- where <intern_group> is a symbolic name used in media/media_info/compssUsers* files,
- and <level> defines importance level as described below :
- 5 must have
- 4 important
- 3 very nice
- 2 nice
- 1 maybe
- by default (for non expert), group selects packages for level 4 (important)
- and 5 (must have). export mode add 3 (very nice) level. other level (below 2)
- can only be selected using individual package selection.
-
-install/stage2/live
- live system used on certain installs. See ``Ramdisk or not'' below for
- more.
-
-install/stage2/mdkinst.clp
- for the compressed loopback of install.
- generated from install/stage2/live tree using misc/mdkinst_stage2_tool
-
-install/stage2/rescue.clp
- rescue ramdisk. create_compressed_fs iso file
- this is the ramdisk loaded when typing rescue on boot prompt.
-
-install/images/*.img
- floppy boot images to use with DrakX. Use:
- - cdrom.img for cdrom install
- - network.img + network_drivers.img for ftp/nfs install (non-pcmcia devices)
- - hd_grub.img for hard-disk install (see http://qa.mandriva.com/hd_grub.cgi)
- - pcmcia.img for pcmcia install (see ``PCMCIA install'' below for more)
-
-install/images/boot.iso
- iso image to burn enabling any install (cdrom/hd/nfs/ftp)
-
- Boot from cdrom:
- - boot.iso : iso image to burn
-
- Boot from hd (esp. usb key):
- - all.img : fat16 image to dd on a partition (hint: sda1)
- - it seems some bioses don't use the code on MBR (sda),
- or at least skip it when it's blanked
- (eg: "dd if=/dev/zero of=/dev/sda bs=1 count=446")
- - some bioses need it. I had some luck using
- dd if=/usr/lib/extipl/aldebaran.bin of=/dev/sda
- (install package extipl first)
-
- Boot from network:
- - all.rdz + vmlinuz via pxe
-
- Boot from floppy:
- - cdrom.img : to install from a cdrom (but not a usb drive)
- - network.img + network_drivers.img : to install from network
- - hd_grub.img : to install from hd
-
- dd for windows: http://uranus.it.swin.edu.au/~jn/linux/rawwrite/dd.htm
-
-********************************************************************************
-* logs *************************************************************************
-********************************************************************************
-During install, a lot of interesting stuff can be found in different places:
-in consoles and in files. To switch to console 2 for example, do Ctrl-Alt-F2
-from the X install.
-- alt-F1: the stdout of the install. Not very interesting stuff
-- alt-F2: simple shell. Quite a lot of commands are available but as they are
-written in perl (for space), they do not handle the very same options as normal.
-After install, you can do ``chroot /mnt'' to see your system just like after
-rebooting. ``rpm -qa'' works for example.
-- alt-F3: a lot of interesting things. Be carefull, some ``ERROR'' messages are
-not interesting.
-- alt-F4: kernel's place. aka the output of dmesg.
-- alt-F7: the graphical install lives there
-
-- command "bug" puts on floppy lots of interesting stuff.
-- /tmp/stage1.log: same as alt-F3 part when stage1 run (e.g. actions
- before graphical install really begins)
-- /tmp/ddebug.log: (nearly the) same as latter alt-F3 part
-- /tmp/syslog: same as alt-F4
-- /mnt/root/drakx/ddebug.log: at the end of each step, DrakX tries to backup
- /tmp/ddebug.log to /mnt/root/drakx. Available only after mounting of /.
-- /mnt/root/drakx/install.log: the log of the installation (or upgrade) of the rpms
-(just like rpm's /mnt/tmp/(install|upgrade).log)
-- /mnt/root/drakx/auto_inst.cfg.pl: a kickstart file generated at the end of each
-step. Can be used in 2 ways: kickstart install or ``defcfg'' install. Hopefully
-you know about kickstart. ``defcfg'' is a way to customize the default values in
-install. For example, French can be the default language with a qwerty keyboard,
-the auto-partitionning partitions can be changed, the default user class can be
-set to developer (!)...
-
-********************************************************************************
-* po translation files *********************************************************
-********************************************************************************
-DrakX uses .po files for its translation. A script takes the different
-strings out of the .pm files. It generates the DrakX.pot file which contains
-all the english strings to translate.
-
-********************************************************************************
-* PCMCIA install ***************************************************************
-********************************************************************************
-If the media you use to install is a pcmcia device, use the pcmcia boot disk.
-
-********************************************************************************
-* modules **********************************************************************
-********************************************************************************
-Modules can be found in at least 2 places:
-- in /modules/modules.mar
-- in /lib/modules.cz<KERNEL_VERSION_RELEASE>
-
-/modules/modules.mar is used in mdk-stage1. It contains only modules
-interesting for one kind of install. For example in an hd install, it
-contains scsi modules. For a network install, it contains network card
-modules. (To create, extract or view files in a ``mar'' archive, please
-use gi/mdk-stage1/mar/mar; this is basically an archive format meant to
-be minimalistic)
-
-/lib/modules.cz<KERNEL_VERSION_RELEASE> contains all modules, it is used
-in stage2.
-
-
-To manually install a module during install, switch to console #2
-and type "modprobe <modulename>". The modprobe program is a perl
-wrapper around /usr/bin/insmod. It uses the dependencies found in
-/modules/modules.dep (stage1).
-
-/usr/bin/insmod is a wrapper around /usr/bin/insmod_. It just extracts the
-module out of /lib/modules.cz in /tmp. Then it calls insmod_.
-
-/usr/bin/insmod_ is the real prog (which you usually find in /sbin/). You need
-to give it the complete path.
-
-********************************************************************************
-* Making screenshots ***********************************************************
-********************************************************************************
-1. easy solution: press "F2"!
-
-2. On a test machine, make a network install, switch to console (ctrl-alt-F2), enter:
-% xhost+
-then, on another computer:
-% DISPLAY=test_machine:0 xwd -root | convert - screenshot.png
-
-********************************************************************************
-* Auto install *****************************************************************
-********************************************************************************
-A powerful auto-install system is available. It allows performing
-an install without any human interaction.
-
-To feed automatic parameters to the stage1 part (the textmode
-part - might not be necessary for you if you plan to do
-cdrom-based auto-installs, but mostly highly needed when doing
-network installs), please refer to ../mdk-stage1/doc/TECH-INFOS.
-
-About the stage2 part (the actual installer, at the time you're
-(usually) running in graphical mode), please refer to the nice
-documentation written by David Eastcott. Either install the
-package "drakx-autoinstall-doc" from contrib, or browse:
-
-http://members.shaw.ca/mandrake/drakx/9.0/HTML/
-
-The previous document will explain you how to setup the contents
-of the auto_inst.cfg file. Note that you have 3 alternatives for
-providing this file:
-- from a floppy disk; use "kickstart=floppy" as kernel parameter,
- as explained in the document
-- from the installation volume itself; put the file in the
- "install" directory of the installation volume; use
- "kickstart" only, or "kickstart=filename" to specify another
- filename than auto_inst.cfg
-- specified by the network; setup your DHCP server to provide the
- "bootfile" parameter, this file will be used as the
- "auto_inst.cfg" file; in this case you also need to provide the
- "netauto" boot parameter
-
-In any case, if the specified file ends with -IP or -IP.pl, IP
-will be substituted by the IP address of the machine, when doing
-a network install. Might be useful so that you can control all
-your auto installs from your server.
-
-********************************************************************************
-* Miscellaneous ****************************************************************
-********************************************************************************
-> o Media access methods: nfs, ftp, http, hd, cdrom
-> o Stages: init, stage1, stage2
-> - What exactly each stage does
-
-init loads stage1
-stage1 loads stage2, from various medium type
-
-stage2 is too big to fit on a floppy, that's why stage1 exists
-
-> - How each stage relates to the various media access methods
-
-stage1 knows only how to access to the media is compiled for. It
-contains only the kernel modules needed for that media. For eg,
-the nfs/ftp/http stage1 (network.img floppy) doesn't contain scsi
-modules nor ide.
-
-> - How one stage terminates and another begins. i.e., How does
-> stage1 find, mount, and launch stage2?
-
- /sbin/init just starts /sbin/stage1, and monitors its
-execution; it's here to cleanly umount the partitions when stage1
-or stage2 dies/finished
-
- /sbin/stage1 takes care of mounting stage2 (in ramdisk if
-necessary) then it execs /usr/bin/runinstall2 (thus, stage2
-replaces stage1, and init then monitors stage2)
-
-> o Text and Graphic mode installers
-> - Architectural overview of each
-
-have a look at gi/docs/object_class.fig
-