On Sat, Dec 22, 2007 at 02:50:11AM +0800, Bean wrote: > makerom is a new tool in the GRUB Utilities project. It can be used to > create bootrom image using grub legacy, grub2 and grldr.mbr. > > grub legacy/grub4dos: > makerom rom_xxx.img stage2 grub.bin > > grub2: > makerom rom_xxx.img core.img grub2.bin > > grldr.mbr: > makerom -s 0 rom_xxx.img grldr.mbr grldr.bin > > rom_xxx.img stands for one of the following files: > > rom_isa.img: Header for ISA bootrom > rom_pci.img: Header for PCI bootrom > rom_zisa.img: Header for ISA bootrom, support lzma decompression > rom_zpci.img: Header for PCI bootrom, support lzma decompression > > To enable lzma, you should use option -z, and choose one of the > headers that supports lzma: > > makerom -z rom_zisa.img stage2 grub.bin > > As bootrom has 64K size limit, for image larger than 64K, you must use > compression. For example, the uncompressed stage2 for grub 0.97 is > 98K, after compression, image reduced to about 50K. > > Also note that compression is performed by external lzma program, you > need to install the lzma package before using the compression > function.
How well does compression work for GRUB 2 ? core.img is already compressed (with lzo); if LZMA makes better results perhaps it'd be a good idea to switch. -- Robert Millan <GPLv2> I know my rights; I want my phone call! <DRM> What use is a phone call, if you are unable to speak? (as seen on /.) _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org http://lists.gnu.org/mailman/listinfo/grub-devel
