GEOM and moving to CURRENT from 7.1

[Dimitry Andric]

On 2009-01-15 20:35, Marcel Moolenaar wrote:
> You need a boot sector for the BIOS to jump into, but
> it doesn't have to be a MBR with slices. That's why
> a DD has something that looks an awful lot like a MBR
> in the first sector. It could very well be boot sector
> of an FAT* file system.

I can confirm, that wiping out the partition table (but not the boot
code), using "bsdlabel -B /dev/ad0s1", makes "s1" disappear.  Subsequent
boots can then be done from /dev/ad0a, and this works both for "old"
kernels, e.g. from before r186240 and after.

And at least VMware's BIOS isn't scared of empty partition tables. ;)