Daniel Ouellet wrote:
> Tony Abernethy wrote:
> >> disklabel, of fdisk
> >> to look only, looks like there is only one partition now.
> > Dunno if that is looking at MBR in memory or MBR on disk
> > If MBR on disk is still the same, should be OK after boot.
>
> That's not from memory for sure.
>
> Power off and on show the same thing.
>
> > If MBR on disk has changed, need exact make model of disk drive
> > and maybe somebody with same can read the critical values.
> > Dunno about MAC, but I've had a Windows partition refdisked
> > reformatted, should have been all gone and all the original
> > contents showed back up.
>
> I don't think this will do anything really.
>
> As far as I understand trying to learn to may be fix is that
> you would
> have 4 partition there.
>
> 1. EFI
> 2. MAC OS X HFS+
> 3. EFI System (FAT)
> 4. the OpenBSD one as id A6
>
> Now, id for 1, 2 and 3 are 00 and 4 is A6 with type OpenBSD
> and all the
> size for that one and all the three others 0.
>
> For what I understand so far is that I would need to somehow restore
> these 4 partition informations with the right id on them and
> all should
> be fine as no data was changed on the data part of the drive anyway.
>
> I just have no clue yet as to how to do this, or if possible.
>
> How to even figure out what side each one should be and what type???
>
> I won't do anything until I am sure, but I am disparately
> searching so
> far to find any clue as to how to proceed.
>
> I believe it should really be possible, but not there yet for
> sure anyway.
>
> Best,
>
> Daniel
>
This is from an IBM T41 (booting from USB)
sd0 is the USB drive. wd0 is the hard disk with only NT on it.
YOURS will be considerable more complicated.
ALL those numbers in the middle need their correct values.
# fdisk sd0
Disk: sd0 geometry: 3949/16/63 [3981312 Sectors]
Offset: 0 Signature: 0xAA55
Starting Ending LBA Info:
#: id C H S - C H S [ start: size ]
----------------------------------------------------------------------------
---
0: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused
1: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused
2: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused
*3: A6 0 1 1 - 3936 8 63 [ 63: 3967992 ] OpenBSD
# fdisk wd0
Disk: wd0 geometry: 4697/240/63 [71029746 Sectors]
Offset: 0 Signature: 0xAA55
Starting Ending LBA Info:
#: id C H S - C H S [ start: size ]
----------------------------------------------------------------------------
---
*0: 07 0 1 1 - 4696 239 63 [ 63: 71018577 ] NTFS
1: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused
2: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused
3: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused
What you want are all those values relevant to YOUR system.
Maybe somebody has a similar system (Sorry, no MACs here)
