dev/sda1 Apple_partition_map Apple 63 1 ( 31.5k) Partition map To restart if something got messed up simply quit without writing the modifications. All modifications are done in memory and will be saved with w (write the partition table), followed by y (to confirm). Note that two more partitions were added and the numbers behind those partitions have been shifted accordingly ("Linux Boot" was /dev/sda9 and got shifted to /dev/sda11). To check if this worked, use p again to list the new partition table. To get this done, the key sequence p (print partition table), C (create partition with type also specified type uppercase C!), 262208 (first block), 1834944 (length), "NewWorld Bootblock" (name of partition use quotes!) and Apple_Boot (type of partition). Since the original Apple_Free "hole" in this specific example ( /dev/sda2) has 2359232 blocks, another hole is left at the end if the size of the bootstrap partition is 2359232 - (2 * 262144) = 1834944. The block numbers to enter have to be calculated first: 128 MB Apple_Free "holes" are 262144 blocks in size, so the first block will have to be 64 (base) + 262144 (Apple_Free) = 262208. Since this is enough to add 128 MB "holes" before and after, the partition will add two more Apple_Free holes. It starts at block 64 (base column) and is 2359232 blocks long (length column). In this example, the hole between the partition table and the first partition (Mac OS X Tiger) is 1.1 GB. Normally 800 KB is used but any size big enough for a HFS filesystem and the GRUB core files will do.
Mac os alternative for powerpc free#
Older versions of Mac OS X don't add free space between partitions, so the NewWorld Bootblock will have to be added behind the already existing partitions. when installing Mac OS X, per default only 128 MB will be free here, which should barely be enough for this purpose. The following example uses the free space (type Apple_Free) right after the partition table. All values are entered by hand without automatism of any kind. The partition name is optional but helps when listing the partitions.
Either way you should get a bootable HFS partition of either the type Apple_Boot or Apple_Bootstrap. by using the C command for "create new partition, specifying the partition type", or semi-automatic by using the b command for "create new 800k Apple_Bootstrap partition (used by yaboot)".
At the interactive command prompt this partition can either be created manually e.g.
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