Florian, Cool! As soon as I can find a 512-byte ro CDROM, I'll try this. I've got part of mkefs working, BTW, which I realize is not required to make bootable CDs, but might be helpful anyway. - Alex Florian Lohoff wrote: > On Thu, Sep 26, 2002 at 03:32:26AM -0400, Alex deVries wrote: > >>I'm curious about the possibility of making a Linux installer for the >>Indy that boots from CD; is there any description of the format of >>bootable IRIX CDs out there? What does the firmware expect? >> >>I know that sash is involved somehow... > > > Ok - i reworked the procedure a bit whil beeing in Oldenburg. > > flo@split:~/projects/boot$ mkisofs -J -R -V testboot -o iso > tftpboot-r4k-ip22.img > Total translation table size: 0 > Total rockridge attributes bytes: 262 > Total directory bytes: 0 > Path table size(bytes): 10 > Max brk space used 6644 > 2208 extents written (4 Mb) > flo@split:~/projects/boot$ isoinfo -l -R -i iso > > Directory listing of / > dr-xr-xr-x 2 1750 1750 2048 Sep 27 2002 [ 28] . > ?--------- 0 1750 1750 2048 Sep 27 2002 [ 28] .. > -rwxr-xr-x 1 1750 1750 4414116 Sep 12 2002 [ 31] tftpboot-r4k-ip22.img > flo@split:~/projects/boot$ echo $[ 31 * 4 ] > 124 > flo@split:~/projects/boot$ genisovh-0.1/genisovh iso sashARCS:124,4414116 ip22:124,4414116 > > The last command adds a "volume header" in the first 512 byte into the > iso file. This volume header spans the whole iso filesystem and lists 2 > files at identical positions which is the ECOFF tftpboot-r4k-ip22.img. > The name sashARCS is coded in the Indys prom for the installer when > using your mouse and "Install System Software" and "Local cdrom". > > Now one needs to write a wrapper for the Indy bootfloppys aka debian-cd > to produce bootable cds. > > I put up the stuff: > > http://www.silicon-verl.de/home/flo/software/ip22test.iso > http://www.silicon-verl.de/home/flo/software/genisovh-0.1.tgz > > Flo -- Alex deVries Principal Architect, Linuxcare Canada, Inc. (613) 562 2759 Linuxcare. Simplifying Server Consolidation.
