Six OS's on a disk? Wait I can do seven!!

Update: In my previous blog I showed how to install 6 os's on a disk. Well, actually you can have seven (7). Disk partitions are numbered from 0 to 7. Ignoring slice 2, that leaves us with 7 free slices on which to install our OS. Although I am yet to log on to a machine with 7 OS's on disk!!

Richard Elling pointed it out that you could also use slice 2 (the loopback/backup/overlap slice) also. So that's 8. He also mentions that some SCSI devices support 16 slices, and so you could install quite a lot more OS installations! Maybe we should have a completion of how many OS's you have installed on a single disk :-) My personal best is 6.

Comments:

Actually, slice 2 is the overlap by convention, not rule. So you can easily have 8. Some SCSI devices support 16 slices. I'm not sure how the new EFI labels affect this, but suffice to say, you can have lots.
-- richard

Posted by Richard Elling on December 12, 2005 at 08:18 AM PST #

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