Enable multiple OSX boot option and intellegent labels?
ppc.addon at gmail.com
Sat Feb 4 02:43:46 EST 2012
On Fri, Feb 3, 2012 at 1:22 AM, Jim Harris <jimrh at charter.net> wrote:
> I would like to be able to boot a system with more than one OSX partition,
> in addition to the Linux install.
> In my case I have a system with two Tiger installs, one configured – one
> sandbox, and a Xbuntu install. Currently I can only boot one of the two OSX
> choices. If I add more than one “maxosx=” stanza to the yaboot.conf file,
> only the first one on the list is recognized.
> I would like to add intelligent labels to the choices – something more
> meaningful than “macosx” or such.
what you need is not really common thus no one asked for this
feature.. and i guess nobody 'll do it in the future.
Expected you already have a working yaboot bootloader installed on
your system you can do it editing by hand the ofboot.b located in your
800k AppleBootstrap partition.
To hack the first stage you simply need to have, as i said, a working
installed yaboot and a kernel capable to handle HFS fs.
# mac-fdisk -l
# type name length base
( size ) system
/dev/sda1 Apple_partition_map Apple 63 @ 1
( 31.5k) Partition map
/dev/sda2 Apple_Bootstrap bootstrap 1600 @ 64
(800.0k) NewWorld bootblock
/dev/sda3 Apple_UNIX_SVR2 swap 1310720 @ 1664
(640.0M) Linux swap
/dev/sda4 Apple_HFS B 41943040 @
1312384 ( 20.0G) HFS
/dev/sda5 Apple_UNIX_SVR2 /boot 196608 @
43255424 ( 96.0M) Linux native
/dev/sda6 Apple_UNIX_SVR2 / 20971520 @
43452032 ( 10.0G) Linux native
/dev/sda7 Apple_UNIX_SVR2 /home 25165824 @
64423552 ( 12.0G) Linux native
/dev/sda8 Apple_UNIX_SVR2 DEVEL 66712112 @
89589376 ( 31.8G) Linux native
Block size=512, Number of Blocks=156301488
# mount /dev/sda2 /mnt/hd0/
# df -Th
Filesystem Type Size Used Avail Use% Mounted on
/dev/sda6 reiserfs 10G 4.7G 5.4G 47% /
/dev/sda7 reiserfs 12G 8.5G 3.6G 71% /home
/dev/sda8 ext4 32G 25G 5.6G 82% /mnt/DEVEL
/tmp tmpfs 756M 28K 756M 1% /tmp
shm tmpfs 756M 0 756M 0% /dev/shm
/dev/sda2 hfs 797K 201K 596K 26% /mnt/hd0
# cat /mnt/hd0/ofboot.b
now you can edit the ofboot.b forth script with your preferred editor
and add your "intelligent labels" (anyway choose just one letter or
My blog: http://linuxpowerpc.blogspot.com
Power Mac G4 AGP 450MHz - CRUX PPC (32bit)
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