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====== Supporting Ubuntu 9.10 in BKO ====== This page will document progress and problems faced in supporting Ubuntu 9.10 in BKO. ===== Steps in adding Ubuntu 9.10 in BKO ===== - Get the 9.10 ISO. - Extract the linux kernel image, initrd image. - Get kernel modules needed for iscsi support from iso. - Modify initrd image ( to be done by ''generate_initrd.sh'' script ) - adding tools needed to support httpfs and iscsi mounting - add kernel modules for iscsi support to initrd. - edit the "scripts/casper" inside initrd image. - to use above tools and mount the ISO image over Internet. - Modify code such that mounted ISO will be used for booting instead real cdrom. - Compress back the initrd image. - Used unmodified linux kernel image and modified initrd image to boot the system. - Most probably something will go wrong and it will not work, debug those problems. ===== new format for initrd ===== Ubuntu 9.10 is using new format for compressing initrd files. It uses ''lzma'' command for this. This is quite new format for me, so struggling little bit with it. For decompressing the ''initrd.lz'', use following steps. <code> mv initrd.lz initrd.lzma unlzma initrd.lzma </code> I still have some problems in compressing it back. The default ''lzma'' compression does not match the original ''initrd.lz'' file, so I am doing something wrong here.
