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authorFrancois Pons <fpons@mandriva.com>2001-04-26 15:44:05 +0000
committerFrancois Pons <fpons@mandriva.com>2001-04-26 15:44:05 +0000
commit8de10ac9ca93e32f92383db57205105a882fbac4 (patch)
treee3fa75d628f329bb819f4d7eec43bc42171eec99
parentc3a4594f603d2e10667590b82dfcee8be408d9e4 (diff)
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added some more comments for DrakX code source and usage.
-rw-r--r--docs/README138
-rw-r--r--docs/README.devel252
2 files changed, 322 insertions, 68 deletions
diff --git a/docs/README b/docs/README
index 71b23c84d..c7ac25e43 100644
--- a/docs/README
+++ b/docs/README
@@ -1,5 +1,5 @@
Well here is a little description of what DrakX needs to work in comparison
-to the standard newt install.
+to the RH newt install.
********************************************************************************
* CVS **************************************************************************
@@ -33,7 +33,8 @@ just have to issue:
% gendistrib --noclean --distrib <DIRS>
-Where <DIRS> is the root of all the media that the install will see:
+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
@@ -41,10 +42,11 @@ Where <DIRS> is the root of all the media that the install will see:
(2) multi-cdrom install
DIRS == the root directories of all the media that the install will see
-``gendistrib'' will scan, from the DIRS you provide, for some
-Mandrake/RPMS* directories containing some RPM packages. For multi-cd,
-please use Mandrake/RPMS, Mandrake/RPMS2, etc. For one CD or a network/hd
-volume, please use Mandrake/RPMS.
+``gendistrib'' will scan the file Mandrake/base/hdlists in the main root
+directory (the first one in DIRS) to search for all media used. Typically you
+use Mandrake/RPMS* for RPM packages repository.
+For multi-cd, please use Mandrake/RPMS or Mandrake/RPMS1, Mandrake/RPMS2, etc.
+For one CD or a network/hd volume, please use Mandrake/RPMS.
Optionnally, you can modify ``Mandrake/base/rpmsrate''; this file manages
the relative importance of the files, and thus their installation or not.
@@ -58,38 +60,62 @@ See below for information about these files.
First here are the different things needed :
Mandrake/base/hdlists
- description of the available install media
+ 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
Mandrake/base/hdlist*.cz
table of rpm's headers, referred by ``hdlists''
- ! Need to be remade when Mandrake/RPMS changes (with ``gendistrib'') !
+ their contents can be listed using ``packdrake -l <hdlist_file>'' or
+ or ``parsehdlist <hdlist_file>''.
+ ! Need to be remade when Mandrake/RPMS* changes (with ``gendistrib'') !
-Mandrake/base/depslist
+Mandrake/base/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 Mandrake/RPMS changes !
- (with ``misc/gendepslist2 -o Mandrake/base/depslist Mandrake/base/hdlist.cz2'')
-
-Mandrake/base/depslist.ordered
- more compact depslist with closure done, internally indexed
+ ! Need to be remade when Mandrake/RPMS* changes !
+ (with ``gendistrib --noclean --distrib .'')
Mandrake/base/compss
obsoletes comps. It store packages in different categories, generated
from the %{GROUP} field
+ ! Need to be remade when Mandrake/RPMS* changes !
+ (with ``gendistrib --noclean --distrib .'')
Mandrake/base/rpmsrate
ranks and classify packages, so that the installer will know which
- ones to install (see beginning of perl-install/pkgs.pm for more)
+ ones to install. format is :
+ <intern_group>
+ <level> <packages>
+ where <intern_group> is a symbolic name used in Mandrake/base/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.
Mandrake/mdkinst
live system used on certain installs. See ``Ramdisk or not'' below for
more.
-Mandrake/base/mdkinst_stage2.gz
- for the ramdisk. live sytem in ext2 filesystem gzipped.
+Mandrake/base/mdkinst_stage2.bz2
+ for the ramdisk. live sytem in ext2 filesystem bzipped2.
generated from Mandrake/mdkinst tree using misc/make_mdkinst_stage2
See ``Ramdisk or not'' below for more.
+Mandrake/base/rescue_stage2.bz2
+ rescue ramdisk. live sytem in ext2 filesystem bzipped2.
+ this is the ramdisk loaded when typing rescue on boot prompt.
+ there is no live system available, only the ramdisk is used.
+
images/*.img
boot images to use with DrakX. Use:
- cdrom for cdrom install
@@ -97,17 +123,20 @@ images/*.img
- hd for hard-disk install
- pcmcia for pcmcia install (see ``PCMCIA install'' below for more)
- the following modules have been removed from:
+ the following modules have been removed from:
network.img: acenic sk98lin de4x5
cdrom.img and hd.img: BusLogic seagate fdomain g_NCR5380 dc395x_trm tmscsim
hd.img: dpt_i2o eata eata_pio eata_dma
cdrom.img: aztcd gscd isp16 mcd mcdx optcd cm206 sjcd
pcmcia.img: apa1480_cb
- they are now in "other.img",
+ they are now in "other.img",
+
+ blank.img is a blank boot image without a kernel nor initrd. this image
+ can be used to generate custom boot disk.
+
+ if you think one of those modules is used a lot, tell me, i may find some room
+ to put it back on the main floppies.
- if you think one of those modules is used a lot, tell me, i may find some room
- to put it back on the main floppies.
-
********************************************************************************
* logs *************************************************************************
@@ -161,6 +190,7 @@ The DrakX install is much bigger than the newt one. So the ramdisk which was
used is getting big, and costs a lot in memory
(eg: the mdkinst_stage2 is 14MB - 23/09/99)
(update! now size is 21MB - 24/01/01)
+(update! now size is 19MB - 26/04/01)
| | newt | DrakX
|-------+---------+----------------------------------------------------------
@@ -226,42 +256,6 @@ then, on another computer:
% DISPLAY=test_machine:0 xwd -root | convert - screenshot.png
********************************************************************************
-* Adding a new step to DrakX ***************************************************
-********************************************************************************
-Say we want to add a question for setting "alawindows" option.
-We put it pretty early in the install, let's say after "Select Installation
-Class".
-
-1. in install2.pm
-
-add
-
- selectAlawindows => [ __("A la windows or not"), 0, 1, '' ],
-
-after
-
- selectInstallClass => [ __("Select installation class"), 1, 1, '' ],
-
-the 0, 1, '' means not "redoable", "skip on error", "don't hide"
-
-2. add your function selectAlawindows in install2.pm
-
-sub selectAlawindows { $o->selectAlawindows }
-
-3. add your function selectAlawindows in install_steps_interactive.pm
-
-sub selectAlawindows {
- my ($o) = @_;
- $o->{alawindows} = $o->ask_yesorno('', _("Throw everything away as windobe does?"), 1);
-}
-
-4. add your function selectAlawindows in install_steps.pm (not needed in that
-case, except for auto_install)
-
-sub selectAlawindows {}
-
-
-********************************************************************************
* Miscellaneous ****************************************************************
********************************************************************************
> o Media access methods: nfs, ftp, http, hd, cdrom
@@ -289,7 +283,7 @@ doesn't contain scsi modules nor ide.
> o Text and Graphic mode installers
> - Architectural overview of each
-have a look at gi/install.fig
+have a look at gi/docs/object_class.fig
********************************************************************************
@@ -304,26 +298,34 @@ have a look at gi/install.fig
many solutions:
-- make an install on drive hdb, then either
- 1. dd if=/dev/hdb of=/dev/hdc
- 2. dd if=/dev/hdb of=/dev/hdc count=1 ; kernel_reread /dev/hdc ;
- mke2fs /dev/hdc1 ; mount /dev/hdb1 /source ; mount /dev/hdc1 /dest ; cp -a /source /dest
+- make an install on drive hdb, then :
+ dd if=/dev/hdb of=/dev/hdc
+ but you should make sure the hardware is *REALLY* identical.
- try the oem feature
- 3. - burn a cd out of *latest* cooker
+ 3. - burn a cd out of *latest* cooker or 8.0 and above.
- boot on it telling "oem" to syslinux
- !! it will destroy every data on the harddrive !!
+ !! it will destroy every data on the harddrive or
+ resize (or use free space) if *ONLY* one fat partition is defined !!
- you now have a very automated install matrix
(duplicate it with "dd if=/dev/hdb of=/dev/hdc bs=1M count=730")
put the harddrive in the oem box, the user will now have an *very* automated
- install, just asking the root password and user password.
+ install, just asking the root password and user password, and some other
+ question according its hardware.
+
+ 4. just like 3. but you may have to mount /cdrom after typing rescue on
+ syslinux prompt (oem script do it automatically if a automatic boot nfs
+ network has been done as server is known). under /cdrom may be anything
+ as long as it provides an installation tree of Linux-Mandrake.
+ after that run oem script by typing "/etc/oem -f" for normal installation
+ or "/etc/oem -f server" for server installation (normal with server installed).
- 4. (just like 3. without burning a cd, doing the first part by hand)
+ 5. (just like 3. without burning a cd, doing the first part by hand)
have a look at the /etc/oem script on the rescue and do it by hand...
-cu Pixel.
+cu Pixel, fpons.
comments:
diff --git a/docs/README.devel b/docs/README.devel
new file mode 100644
index 000000000..cd0466b35
--- /dev/null
+++ b/docs/README.devel
@@ -0,0 +1,252 @@
+Well here is a little description of how DrakX can be modified or extended.
+Please refer to README file for getting DrakX code source and to known more
+exactly how it works and what it can do.
+
+
+********************************************************************************
+* Execution of DrakX ***********************************************************
+********************************************************************************
+DrakX has originally be written by pixel in perl and C.
+entry point for stage2 is /usr/bin/runinstall2 which is typically a link to
+/usr/bin/install2 which simply load module install2.pm and execute
+install2::main with @ARGV.
+
+install2::main parse command line arguments, prepare installation, find the right
+install_interactive class (take a look at gi/docs/object_class.fig) according to
+command line, memory available and if the interactive chosen is initializing
+correctly, else it will try a less-demanding interactive object.
+Once done, $::o is set to this install & interactive object and main runs the
+various step of install2 defined in $o->{steps}, starting with $o->{steps}{first}
+and iterating with method install_any::getNextStep().
+while running step, it trap any errors that may arise and use perl exception to
+change step.
+
+********************************************************************************
+* DrakX modules descriptions ***************************************************
+********************************************************************************
+Here is a brief description of what each modules of DrakX is doing.
+
+install2: main module of DrakX as described above, main loop execution of DrakX.
+
+install_steps: generic installation module containing steps definition, all steps
+ should always be defined here as some methods may be used on automatic mode.
+ there is no interactivity available. typically are defined base operation for
+ configuring each step according to $o.
+
+install_steps_interactive: generic installation module with generic interative
+ methods. typically are found all interactive code of DrakX for each steps.
+
+install_steps_auto_install: implementation installation module without interactive
+ methods to match auto_install mode. this is the simplest as almost no method are
+ redefined (inherit module install_steps only, compared to other implementation
+ modules described below).
+
+install_steps_stdio: implementation installation module with interactive stdio
+ methods to match stdio mode. inherit modules install_steps_interactive and
+ interative_stdio.
+
+install_steps_newt: implementation installation module with interactive newt
+ methods to match newt mode. inherit modules install_steps_interactive and
+ interactive_newt.
+
+install_steps_gtk: implementation installation module with interactive gtk
+ methods to match gtk mode. inherit modules install_steps_interactive and
+ interactive_gtk.
+
+install_any: contains various methods using generic interactive interface but
+ not used by standalone tools.
+
+install_gtk: contains various methods using gtk interface but not used by
+ standalone tools.
+
+interactive_stdio: implementation methods for interactivity in stdio mode.
+ inherit module interactive.
+
+interactive_newt: implementation methods for interactivity in newt mode.
+ inherit module interactive.
+
+interactive_gtk: implementation methods for interactivity in gtk mode.
+ inherit module interactive.
+
+my_gtk: basic gtk access methods.
+
+any: contains various methods using generic interactive interface. to compare
+ against install_any module as this one is available for standalone tools.
+
+class_discard: simple module that implement every methods undefined to return
+ nothing. this trick is used to ensure no undefined method can arise when using
+ code that reference interactive method which are not defined.
+
+common: contains very simple and very usefull (common) methods to do various task.
+ some methods inspired by functionnal language.
+
+c: contains wrapper to C definition of methods used by DrakX, use of C is necessary
+ for C extern libraries interface (rpmlib, ldetect), kernel interface, XFree
+ interface.
+
+commands: implement some un*x commands, conflicting name with perl contains
+ trailing underscore (_). this module is used by commands perl script that
+ determine which command to run according to $0 (this is used this way when DrakX
+ is running).
+
+run_program: allow running a program with redirection but without using a shell.
+ allow rooted execution.
+
+help: contains all help message displayed by DrakX.
+
+log: log facility methods.
+
+lang: language manipulation methods, get and set sysconfig file, load po.
+
+keyboard: keyboard manipulation methods, get and set sysconfig file, set console
+ keyboard mapping.
+
+mouse: mouse manipulation methods, get and set sysconfig file, change mouse.
+
+timezone: time zone manipulation methods, get and set timezone.
+
+services: services manipulation methods, activate or delete services (see
+ /etc/rc.d/init.d directories).
+
+detect_devices: manage detection of various class of hardware.
+
+devices: manage device file, create device special according device name.
+
+partition_table: base partition table management methods, it manages
+ appriopriate partition_table_XXX object according to what has been read
+ as XXX partition table type.
+
+partition_table_raw: generic class for the following partition_table_XXX.
+
+partition_table_emtpy: matches an empty partition table.
+
+partition_table_dos: matches a DOS partition table.
+
+partition_table_bsd: matches a BSD partition table.
+
+partition_table_mac: matches an Apple partition table.
+
+partition_table_sun: matches a Sun Label partition table.
+
+fs: read and write /etc/fstab file, mount and umount, format.
+
+fsedit: manage (modyfy, edit) mount point associated to partition (like editing
+ /etc/fstab).
+
+swap: swap management methods, format and mount (activation).
+
+raid: raid (software only) management methods.
+
+lvm: lvm (Logical Volume Manager) management methods.
+
+loopback: loopback management methods, used for lnx4win type installation or using
+ a file as a partition.
+
+diskdrake: diskdrake itself, disk graphical (using gtk) manipulation tools.
+
+ftp: ftp mangement methods, used when using ftp install.
+
+http: http management methods, used when using http install.
+
+modparm: kernel modules options management, allow building nice dialog with each
+ module parameter available.
+
+modules: kernel modules management, allow loading or unloading (ala modprobe or
+ insmod).
+
+printer: printer management methods, read and write both LPR or CUPS configuration.
+
+printerdrake: interactive printer management methods.
+
+network: network management methods, get and set sysconfig file.
+
+netconnect: network configuration wizard.
+
+netconnect_const: network configuration wirard data.
+
+Xconfig: X configuration (monitor + already existing config file) management.
+
+Xconfigurator: X configuration wizard.
+
+Xconfigurator_const: X configuration wizard data.
+
+booloader: bootloader (LILO, GRUB, LOADLIN, SILO) configuration management methods.
+
+pkgs: rpm package and hdlist, depslist management methods, allow selecting or
+ unselecting packages, manage rpmsrate file and select group, installation and
+ removal methods of rpm file.
+
+crypto: *obsoleted* module to manage crypto site and rpm file.
+
+standalone: standalone only, allow defining a standalone tools.
+
+bootlook: standalone only, interface with DrakConf to configure bootloader options.
+
+tinyfirewall: standalone only, interface with DrakConf to configure a tiny firewall.
+
+********************************************************************************
+* DrakX FAT resizer module description *****************************************
+********************************************************************************
+here is a fat resizer written in perl and C used by DrakX (diskdrake) to resize
+FAT16/FAT32 partition. it moves clusters to make sure a shrink can be done on the
+limit of the partition itself, if no cluster need to be moved, only boot sector
+partition limit are modified.
+
+any: various methods to flag cluster, compute min size.
+
+boot_sector: boot sector management methods.
+
+c_rewritten: originally resize_fat was only perl, this contains code section that
+ are the most sensible to speed or memory contraints and have been rewritten to C
+ using perl extension.
+
+dir_entry: manage directory structure.
+
+directory: traverse directory recursively, needed to move correctly cluster.
+
+fat: manage fat structure.
+
+info_sector: manage info sector.
+
+io: manage I/O on disk (need to take care of big file as partition size may be
+ larger than 2GB).
+
+main: main resizer algortihm. if needed allocate new clusters, copy files, copy
+ directories. update boot sector info.
+
+********************************************************************************
+* Adding a new step to DrakX ***************************************************
+********************************************************************************
+Say we want to add a question for setting "alawindows" option.
+We put it pretty early in the install, let's say after "Select Installation
+Class".
+
+1. in install2.pm
+
+add
+
+ selectAlawindows => [ __("A la windows or not"), 0, 1, '' ],
+
+after
+
+ selectInstallClass => [ __("Select installation class"), 1, 1, '' ],
+
+the 0, 1, '' means not "redoable", "skip on error", "don't hide"
+
+2. add your function selectAlawindows in install2.pm
+
+sub selectAlawindows { $o->selectAlawindows }
+
+3. add your function selectAlawindows in install_steps_interactive.pm
+
+sub selectAlawindows {
+ my ($o) = @_;
+ $o->{alawindows} = $o->ask_yesorno('', _("Throw everything away as windobe does?"), 1);
+}
+
+4. add your function selectAlawindows in install_steps.pm (not needed in that
+case, except for auto_install)
+
+sub selectAlawindows {}
+
+