Author: laurent Date: 2009-02-05 01:16:54 +0100 (Thu, 05 Feb 2009) New Revision: 443
Modified: openbios-devel/modules/disk-label.c Log: Allows to use disk (like CD-ROM) without partition map but with filesystem on the full disk. We accept partition number 0 (which identifies the full disk) and partition number 1 (we can see the disk as only one partition).
This is needed to boot openSUSE install CD which uses "&device;:1,\suseboot\yaboot.ibm" as its boot path.
There is a Mac partition map on the CD, but partition 1 is the partition map itself, and thus is not usable by a filesystem. So we can guess, openFirmware must use ISO9660 instead of HFS and thus to not use the Mac partition map, but the whole CD for the partition #1.
Disk openSUSE-ppc.iso: 135 MB, 135593984 bytes 4 heads, 32 sectors/track, 2069 cylinders Units = cylinders of 128 * 512 = 65536 bytes
Device Boot Start End Blocks Id System openSUSE-ppc.iso1 1 1 48 Apple_partition_map openSUSE-ppc.iso2 1 2066 132160 Apple_HFS
Modified: openbios-devel/modules/disk-label.c =================================================================== --- openbios-devel/modules/disk-label.c 2009-02-05 00:05:58 UTC (rev 442) +++ openbios-devel/modules/disk-label.c 2009-02-05 00:16:54 UTC (rev 443) @@ -78,6 +78,21 @@ } }
+ /* try to see if there is a filesystem without partition */ + + if (atol(parstr) == 0 || atol(parstr) == 1) { + PUSH_ih( my_self() ); + selfword("find-filesystem"); + ph = POP_ph(); + if( ph ) { + push_str( filename ); + PUSH_ph( ph ); + fword("interpose"); + success = 1; + goto out; + } + } + /* find partition handler */ seek_io( fd, 0 ); if( read_io(fd, block0, sizeof(block0)) != sizeof(block0) )