Date: Sun, 23 Jul 1995 19:16:46 -0600 (MDT) From: evan@probita.com (Evan Polster) To: questions@freebsd.org, msmith@atrad.adelaide.edu.au Subject: Boot error: changing root device to sda1 Message-ID: <9507240116.AA17790@loon.probita.com>
next in thread | raw e-mail | index | archive | help
Mike,
(message history thread concatenated to end of this reply)
Thanks for your reply!
I tried what you suggested and it worked ... sort of.
Situation:
I removed the power cord from scsi disk one and booted up
and the bootmgr successfully saw both disks: IDE and
(normally the second) scsi disk.
So I plugged scsi disk 1 back in (power cord) , rebooted the
machine and noticed that the bootmgr only displayed one function
choice again (F1: dos). Just for grins I decided to choose F5 and
the bootmgr showed me the second disk boot option (F1: freebsd).
So I decided to swap the scsi disk's device ids (so scsi disk 1 became
scsi disk 2 and vice versa) and reinstalled FreeBSD.
Now the bootmgr stills displays only one option (F1: dos) but I
can still access FreeBSD by choosing F5.
However, when freeBSD boots it gets to the point where
it attempts to mount root and it says:
.
.
changing root device to sd1a
PANIC: Unable to mount root.
.
.
Well of course it can't mount root from sd1a as I did not
install any mount points to that partition.
What I did when installing:
I went into the partition editor and picked sd0. I used the entire disk
and set it bootable.
I did nothing else with either the IDE disk or scsi disk 2 via the
partition editor.
I went to the partition label tool next and noticed that it
only displayed my sd0 as available to label (which made sense
to me since the other two disks I didn't identify as available).
I divided the disk:
/ ....... 80M
(swap) .. 80M
/usr .... 652M
Then I installed (committed) selecting the bootmgr (booteasy) option.
Question:
Why did the system want to use sd1a when I didn't create any
partitions on that disk (scsi disk 2), or label?
Do I have to somehow associate DOS as the owner of the other
partitions on IDE disk and scsi disk 2, before I install?
TIA
Evan Polster
>
> Problem:
>
> My bootmgr only gives me one choice for OS's: DOS.
>
> I think the screen looks like:
>
> F1 dos
>
> F?
>
> My current configuration:
>
> IDE Disk 1: primary DOS (bootable).
> SCSI Disk 2: extended DOS partition.
> SCSI Disk 3: freeBSD partition (bootable).
>
>
> What I did:
>
> When installing I created a freebsd partition out
> of the entire disk 3.
>
> After commiting I choose the Bootmgr option.
>
>
> Question: Is there a simple way for me to tell the bootmgr
> about this second bootable drive?
>
>
> TIA,
>
> Evan Polster
> Probita Inc.
> evan@probita.com
>
>From msmith@atrad.adelaide.edu.au Wed Jul 19 22:11:22 1995
Content-Length: 1053
Status: OR
Evan Polster stands accused of saying:
> My bootmgr only gives me one choice for OS's: DOS.
>
> I think the screen looks like:
>
> F1 dos
>
> F?
>
> My current configuration:
>
> IDE Disk 1: primary DOS (bootable).
> SCSI Disk 2: extended DOS partition.
> SCSI Disk 3: freeBSD partition (bootable).
My guess is that your BIOS only supports two harddisks, so you're not
going to be able to boot off the third disk. Swap disks 2 & 3 and see if DOS
still sees the DOS SCSI disk.
> Question: Is there a simple way for me to tell the bootmgr
> about this second bootable drive?
The bootmanager asks the BIOS, AFAIK.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?9507240116.AA17790>