[issue1407] disklabel64 boot problem

[Matthew Dillon]

:However so far nobody had problems since we fixed the last bugs.  I 
:absolutely agree that we should have the boot code reading the UNDO, and 
:also multi-volume HAMMER file systems will not work with the boot loader 
:(will never).  However I think for a simple setup, having just one 
:HAMMER file system should be supported and perfectly fine.
:
:But then, maybe I'm too much an HAMMER enthusiast, and we should go the 
:Linux route and always install a (UFS) /boot.  Then it is also easier to 
:run more complex setups, like vinum, ccd, etc.
:
:cheers
:   simon

    I'm also a bit worried about BIOS addressability with large disks.
    If someone installs a terrabyte disk with HAMMER on it, hammerread
    might have to access very high numbered sectors.  I don't trust the
    BIOS to properly use 48-bit sector addressing.

					-Matt
					Matthew Dillon 
					<dillon at backplane.com>