Date: Sun, 14 Jun 2009 19:08:50 -0400 (EDT) From: Daniel Eischen <deischen@freebsd.org> To: Dan Allen <danallen46@airwired.net> Cc: "Paul B. Mahol" <onemda@gmail.com>, FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org> Subject: Re: Let's back out LOADER_ZFS_SUPPORT from STABLE Message-ID: <Pine.GSO.4.64.0906141903300.14204@sea.ntplx.net> In-Reply-To: <1407C6EC-873D-49AB-9F8C-6A4A6FFA9DC3@airwired.net> References: <E2C78331-3407-44BE-BF32-0A24E86B0F09@airwired.net> <3a142e750906131642n4d00469dh779e54da231bf6d3@mail.gmail.com> <F878F546-F141-4FF8-9AC9-C553F4E560A4@airwired.net> <Pine.GSO.4.64.0906140323320.10803@sea.ntplx.net> <1407C6EC-873D-49AB-9F8C-6A4A6FFA9DC3@airwired.net>
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On Sun, 14 Jun 2009, Dan Allen wrote:
>
> On 14 Jun 2009, at 1:27 AM, Daniel Eischen wrote:
>
>> From one of your older emails, you mention you are using
>> ad0s2a as / and ad0s2b as swap, and then say that ad0s2c
>> is unused (I may have the ad0s2 part wrong). But ad0s2c
>> should be the entire slice (or partition depending on
>> the wording you are used to).
>>
>> How about posting a relevent fdisk and disklabel (or
>> gpart show) so we can see what your slices and partitions
>> look like (fdisk /dev/ad0, disklabel /dev/ad0s2).
>
> ad0s2c is the entire slice as you thought it should be.
>
> Here is fdisk and bsdlabel /dev/ad0s2:
>
> ******* Working on device /dev/ad0 *******
> parameters extracted from in-core disklabel are:
> cylinders=232581 heads=16 sectors/track=63 (1008 blks/cyl)
>
> Figures below won't work with BIOS for partitions not in cyl 1
> parameters to be used for BIOS calculations are:
> cylinders=232581 heads=16 sectors/track=63 (1008 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:
> sysid 7 (0x07),(OS/2 HPFS, NTFS, QNX-2 (16 bit) or Advanced UNIX)
> start 63, size 188747622 (92161 Meg), flag 0
> beg: cyl 0/ head 1/ sector 1;
> end: cyl 1023/ head 10/ sector 63
> The data for partition 2 is:
> sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
> start 188747685, size 45688860 (22309 Meg), flag 80 (active)
> beg: cyl 1023/ head 255/ sector 63;
> end: cyl 1023/ head 14/ sector 63
> The data for partition 3 is:
> <UNUSED>
> The data for partition 4 is:
> <UNUSED>
>
>
>
> # /dev/ad0s2:
> 8 partitions:
> # size offset fstype [fsize bsize bps/cpg]
> a: 43591708 2097152 4.2BSD 0 0 0
> b: 2097152 0 swap
> c: 45688860 0 unused 0 0 # "raw" part, don't
> edit
Seems weird to see swap at offset 0 and partition a after swap.
I wonder if that is screwing things up. And shouldn't the offset
for your first slice start at offset 188747685 (from fdisk)?
This is from my system:
$ fdisk /dev/ad0
******* Working on device /dev/ad0 *******
parameters extracted from in-core disklabel are:
cylinders=155061 heads=16 sectors/track=63 (1008 blks/cyl)
Figures below won't work with BIOS for partitions not in cyl 1
parameters to be used for BIOS calculations are:
cylinders=155061 heads=16 sectors/track=63 (1008 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:
sysid 6 (0x06),(Primary DOS, 16 bit FAT (>= 32MB))
start 63, size 20964762 (10236 Meg), flag 0
beg: cyl 0/ head 1/ sector 1;
end: cyl 1023/ head 254/ sector 63
The data for partition 2 is:
sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
start 20964825, size 135331560 (66079 Meg), flag 80 (active)
beg: cyl 1023/ head 255/ sector 63;
end: cyl 1023/ head 254/ sector 63
The data for partition 3 is:
<UNUSED>
The data for partition 4 is:
<UNUSED>
$ disklabel /dev/ad0s2
# /dev/ad0s2:
8 partitions:
# size offset fstype [fsize bsize bps/cpg]
a: 2097152 20964825 4.2BSD 2048 16384 28552
b: 4194304 23061977 swap
c: 135331560 20964825 unused 0 0
d: 4194304 27256281 4.2BSD 2048 16384 28552
e: 4194304 31450585 4.2BSD 2048 16384 28552
f: 16777216 35644889 4.2BSD 2048 16384 28552
g: 103874280 52422105 4.2BSD 2048 16384 28536
--
DE
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