Should have included this the first time:
When the disk is on the first channel, the BIOS reports and "invalid
partition table" then the boot loader runs anyway until I end up at a
"mountroot>" prompt. Whatever I try to enter at the prompt I'm told the
disk doesn't exist. It doesn't matter which disk my fstab mount points say.
If I have the disk on the second channel it boots just fine regardless
of whether there's a disk on the first channel or not.
..jgm
Joe in MPLS wrote:
Several months ago I bought a bigger (IDE) disk and set about the task
of moving a FreeBSD 6.1 STABLE #0 system to teh new disk. I did the
fdisk, boot0cfg and bsdlabel stuff and dumps piped to restores to get
all the bytes moved. I thought all was well so I got lazy and never
removed the old disk.
After doing an update this week via make buildworld etc, I realized
that the box was still booting from the old small drive and loading an
old kernel before mounting everything mentioned in /etc/fstab.
I used fdisk to make the 1st slice of teh new disk active, edited
fstab to change all the ad2s1x entries to ad0s1x, disconnected the
first drive and moved the new drive to the first IDE channel. No joy.
I used bsdlabel -e to change my "/" partition from ad2s1d to ad2s1a
(sysinstall disklabel would not let me assign "a" to a partition on
the second disk). Still no joy and worse, it wouldn't boot even with
the first disk in place.
I managed to get it booting with both drives installed again, but now
it wants my fstab entries to be "ad2a", "ad2e" etc. It doesn't like
the "ad2s1x" stuff in there any more. Then for the heck of it, I
disconnected the first drive, left the new drive on the second channel
and it booted just fine!
here's fdisk output:
[EMAIL PROTECTED] ~]# fdisk
******* Working on device /dev/ad2 *******
parameters extracted from in-core disklabel are:
cylinders=119705 heads=16 sectors/track=255 (4080 blks/cyl)
Figures below won't work with BIOS for partitions not in cyl 1
parameters to be used for BIOS calculations are:
cylinders=119705 heads=16 sectors/track=255 (4080 blks/cyl)
Media sector size is 512
Warning: BIOS sector numbering starts with sector 1
Information from DOS bootblock is:
The data for partition 1 is:
<UNUSED>
The data for partition 2 is:
<UNUSED>
The data for partition 3 is:
<UNUSED>
The data for partition 4 is:
sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
start 0, size 50000 (24 Meg), flag 80 (active)
beg: cyl 0/ head 0/ sector 1;
end: cyl 1023/ head 254/ sector 63
I don't know why part #4 is active when I marked #1 active earlier
tonight... and the disk is way bigger than 24 MB as shown by df -h:
[EMAIL PROTECTED] ~]# df -h
Filesystem Size Used Avail Capacity Mounted on
/dev/ad2a 1.9G 191M 1.6G 10% /
devfs 1.0K 1.0K 0B 100% /dev
/dev/ad2e 1.9G 2.4M 1.8G 0% /tmp
/dev/ad2g 176G 7.8G 154G 5% /usr
/dev/ad2f 44G 558M 40G 1% /var
devfs 1.0K 1.0K 0B 100% /var/named/dev
and here's bsdlabel:
[EMAIL PROTECTED] ~]# bsdlabel ad2
# /dev/ad2:
8 partitions:
# size offset fstype [fsize bsize bps/cpg]
a: 4194304 0 4.2BSD 2048 16384 28552
b: 4194304 4194304 swap
c: 488397168 0 unused 0 0 # "raw" part,
don't edit
e: 4194304 8388608 4.2BSD 2048 16384 28552
f: 94371840 12582912 4.2BSD 2048 16384 28552
g: 381442416 106954752 4.2BSD 2048 16384 28552
How do I make this "ad0" instead of "ad2"?
TIA ...jgm
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