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Diffstat (limited to 'docs/mastering-tool-for-restore-cd')
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diff --git a/docs/mastering-tool-for-restore-cd b/docs/mastering-tool-for-restore-cd new file mode 100644 index 000000000..f40db4d77 --- /dev/null +++ b/docs/mastering-tool-for-restore-cd @@ -0,0 +1,84 @@ +Restore CD architecture ######################################################## + +the restore CD is based on a mdv rescue CD. +it typically contains: + + data/box.XXX/lst + data/box.XXX/hda5 + isolinux/all.rdz + isolinux/isolinux.bin + isolinux/isolinux.cfg + isolinux/vmlinuz + install/stage2/rescue.sqfs + + + data/box.XXX ####################################################### + + - lst contains the partition table and the drive geometry + (the format is custom, read and generated by partimage_whole_disk) + + - hda5 is an imagefile, a mirror of /dev/hda5 + (the format is partimage only, the idea of partimage is same as dump(8)) + + isolinux ########################################################### + + - kernel and stage1 (same as standard mdv rescue) + + - isolinux.cfg customized to call directly save_all or rest_all + (with option keepmounted for rest_all) + + install/stage2/rescue.sqfs ########################################## + + - compressed loopback containing a iso9660 filesystem. + it is mostly the same as the mdv rescue.sqfs, *plus* partimage_whole_disk + (nb : use extract_compressed_fs/create_compressed_fs to expand/create rescue.sqfs) + + +Mastering process ############################################################## + +1. install a distribution and customize it + + nb: it's better to leave an empty space on the disk after the /home + partition (since the restore script grows it, it's no waste) to allow + adapting to different disk geometry without failing + +2. boot on part_save_all.iso +3. "partimage_whole_disk -s hostfoo save_all /data/box" is called + 3.1. it connects to partimaged server on hostfoo + 3.2. it fins the first free /data/box.XXX + 3.3. it saves the partition table and geometry in /data/box.XXX/lst calling + partimage with action save_file (need a patched partimage) + 3.4. it saves the devices needing to be saved calling partimage with action save. + nb: it doesn't save swap partitions (useless) + nb: it doesn't save ntfs/fat partitions + nb: with option save_home_directory, the last linux partition is not saved + +4. a restore CD iso is built using the data from step (3.) +5. restore CD is burned + +6. restore CD booted on the target computer +7. "partimage_whole_disk rest_all /data/box.XXX" is called + 7.1. it resizes main windows partition if wanted and needed + 7.2. it gets the partition table and geometry and creates partition table + accordingly + 7.3. it creates swap partitions if needed + 7.4. it restores linux partitions + 7.5. it creates linux partitions if wanted (esp. for /home) + 7.6. it grows the last linux partition if wanted (esp. for /home) + 7.7. it installs the bootloader (calling rescue script "install_bootloader") + + +Build process ################################################################## + +- patched partimaged must be installed and launched + (one gets patched partimage rpm building with option "--with jail") + +- the data gets to /var/lib/partimage/data/box.XXX (owned by user partimag) + +- sudo chmod a+r /var/lib/partimage/data/*/* + +- in gi/rescue, call + ./make_partimage_save_rest_all partimage-0.6.4-7mdk.i586.rpm /var/lib/partimage /data/box.XXX + + => it calls ./make_rescue_img with special options to create a special rescue.sqfs + => generates part_save_all.iso and part_rest_all.iso |