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Diffstat (limited to 'contrib/tomsrtbt/tomsrtbt-net.txt')
| -rw-r--r-- | contrib/tomsrtbt/tomsrtbt-net.txt | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/contrib/tomsrtbt/tomsrtbt-net.txt b/contrib/tomsrtbt/tomsrtbt-net.txt new file mode 100644 index 00000000..c5e1b0f2 --- /dev/null +++ b/contrib/tomsrtbt/tomsrtbt-net.txt @@ -0,0 +1,37 @@ +Notes on turning tomsrtbt El Torito into a Etherboot image: + +0. Tomsrtbt (http://www.toms.net/) is an all-purpose rescue and utility +1-floppy Linux system. You can read all about it at the web site. These +notes explain how to turn the El Torito version of it into a netbootable +image for Etherboot. Note that the .img file is not an ISO image, it is +a 2.88M floppy emulation image for writing onto a CD-R(W) with mkisofs. +It's actually a minix filesystem. Inside it are the kernel bz2bzImage +and initrd.bz2. + +1. First uncompress the .img: + + bunzip2 tomsrtbt-2.0.103.ElTorito.288.img.bz2 + +2. Mount the image using loopback. You probably need to be root to do +this: + + mount -o ro,loop tomsrtbt-2.0.103.ElTorito.288.img /media/floppy + +I've specified /media/floppy which is the floppy mount point for my +system, but any convenient directory will do. + +3. Copy the kernel image and initrd off it: + + cp -p /media/floppy/bz2bzImage /media/floppy/initrd.bz2 . + +4. Use mkelf-linux (or mknbi-linux) to make a netbootable image: + +mkelf-linux --append='root=100' bz2bzImage initrd.bz2 > tomsrtbt.nb + +root=100 means use /dev/ram0 (device 1,0) as the root device. + +5. That's it. Clean up by unmounting the .img: + + umount /media/cdrom + +tomsrtbt.nb can now be loaded with Etherboot. Have fun. |