On Thu, Feb 03, 2011 at 08:01:34AM +0000, David Laight wrote: > > The disklabel describes the partition layout of the disk (not the type > 169 mbr partition), it has to be saved on the disk. > > Saving it is ALL the partitions (and, IIRC, anywhere else it manages to find > a copy!) avoids confusion and allows the pbr boot code to find it.
But this is potentially very dangerous, in combination with COMPAT_386BSD_MBRPART, because FreeBSD considers labels to be per-"slice" (per fdisk-partition) and uses the 0x165 partition type. So if we are not very careful, we can hopelessly wreck FreeBSD installations in other MBR partitions.
