Re: fdisk chs numbers

Chris Ridd <chrisridd@xxxxxxx> wrote:
I had some fun formatting a Sun disk recently - disks with EFI labels
are formatted quite differently from "normal" disks and it is possibly
and likely that cylinders/heads/sectors simply aren't used at all on
EFI disks.

Sun might be more compliant than Apple. Apple do strange
things with their GPT disks. Block 1 is supposed to be a
dummy MBR, but Apple use it as a real MBR for Boot Camp.
I discovered that as soon as there is 1 active partition
in the MBR, a Windows disk appears in the EFI boot list.

Presumably "Win95" is a misnomer, as I can't imagine Windows 95 booting
from EFI.

Probably not, but I wonder!

By the way - what I'm up to now is CD-less installation
onto a Boot Camp partition using vmware-rawdiskCreator.
I think I've almost worked out how to do it. Then I can
install one OS onto a real partition (i.e., not on a
virtual disk) and continue to use OS X concurrently.

ps

Do you know why Windows leaves 62 blocks between the MBR
and the first partition?



.

Relevant Pages

  • Re: audio computer down (somewhat off topc)
    ... Master boot record (MBR) disks use both basic and dynamic volumes. ... Because partition tables on MBR disks support partition sizes only up ...
    (rec.audio.pro)
  • Re: Formatting a disk
    ... able to access the partition table whatever the MBR looks like. ... the the partition table is *part* of the MBR. ... that disks be identical. ... | 0x01BE 16 byte partition table entry| ...
    (Ubuntu)
  • Re: How best to set up a separate /home partition, and pros/cons
    ... number of primary partitions. ... EFI also allows the newer GUID Partition Table partitioning ... Hackintosh - or using Mac disks - opens up the possibility of Apple ... GPT or something else; the only link is that only an EFI PC can ...
    (Ubuntu)
  • Re: [opensuse] RAID questions
    ... I created one small partition for /boot, a RAID array over 4 ... you can boot from any of the four disks. ... mean, not just the mbr. ...
    (SuSE)
  • Re: Large drive without partitions
    ... Is there any workaround to try and tie these disks to a ... I thought the MBR contains the partition table so all hard ... disks need one? ... The first segment on track 0 holds both the MBR and the partition ...
    (comp.arch.embedded)