Date: Sat, 7 Dec 2002 23:43:54 +0100 From: Cliff Sarginson <cls@raggedclown.net> To: FreeBSD Current <FreeBSD-current@FreeBSD.org> Subject: Current and Stable and Disk Slice problems Message-ID: <20021207224354.GA1043@raggedclown.net>
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Hello,
I know there has been some exchanges over these problems, but I am not
sure I yet understand if a problem remains (I am obviously writing
because one seems to :)
I have on one of the systems here Linux, FreeBSD-Stable and
FreeBSD-Current. All upto-date as of a few days ago. They all seemed to
be co-existing merrily on the same disk until today.
I did some extensive setting-up of -current so it looks more like my
current stable system (mail and cron jobs etc). I mounted some 4.7 FS'es
to copy some scripts and stuff (read-only).
However, I can no longer boot 4.7. Grub says the partition does not
exist. However fdisk on all 3 systems say otherwise.
I have tried forcing a re-write of the partition table on the system,
but it makes no difference.
Current complains like buggery about the disk geometry being wrong, but
I get so used to seeing that in FreeBSD since I started using it, maybe
I don't give it enough credence (since fdisk says it is going to use
it's idea of the geometry anyway). Now before I do it, I want to ask is
it wise under Current to fix the Geometry as per what the BIOS says or
not. Since this is my experimental machine it is only a question of my
time being needed (and what's time ?) there is no priceless data at
stake.
The disk is layed out:
Slice 1 (0 for Grub) Linux, this is extended DOS LBA
so Linux is on 5,6,7 etc within that.
Slice 2 (1 for Grub) 4.7 Stable
Slice 3 (2 for Grub) Current
Rest is unallocated space, easily enough for another FBSD slice
if experimentation is required.
I am wondering if it is this pesky Linux extended partition that is the
problem. I faintly recall long-ago reading that you should not put FBSD
partitions after an extended DOS one. Is this still true ? I am sure I
have done this before on other systems., easily enough for another FBSD
slice if experimentation is required.
I am wondering if it is this pesky Linux extended partition that is the
problem. I faintly recall long-ago reading that you should not put FBSD
partitions after an extended DOS one. Is this still true ? I am sure I
have done this before on other systems...but never with Current in the
frame. If it is true (and I do not understand why it should be) maybe I
have either a)not studied enough or b)it is not a widely known problem.
I can send precise geometric details if it helps.
--
Regards
Cliff Sarginson
The Netherlands
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