Date: Sat, 1 Jun 2019 11:50:04 -0700 From: David Christensen <dpchrist@holgerdanske.com> To: freebsd-questions@freebsd.org Subject: Re: error when mounting md0 invalid argument Message-ID: <0bf3fbee-fe2a-ae2a-116e-09ac82cb18eb@holgerdanske.com> In-Reply-To: <CAPORhP7-i%2BEgLWpi0dZ_reJu%2BCXf9T%2Bz=g8eC0Xfw%2B4_=uD4Kg@mail.gmail.com> References: <CAPORhP4dT5KmcPbzO1PL7nGPQfQ_EAR=OTFUrdd-yBy_nSUAWg@mail.gmail.com> <c188e828-7f8d-4912-3d11-390bbc56c352@holgerdanske.com> <CAPORhP7-i%2BEgLWpi0dZ_reJu%2BCXf9T%2Bz=g8eC0Xfw%2B4_=uD4Kg@mail.gmail.com>
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On 6/1/19 5:04 AM, David Mehler wrote:
> On 5/31/19, David Christensen <dpchrist@holgerdanske.com> wrote:
>> On 5/31/19 5:29 AM, David Mehler wrote:
>>> I've got a copy of the FreeBSD 12.0 memstick img file. I'm trying
>>> to mount it to make some changes to allow it to go serial
>>> terminal by default.
>> FreeBSD-11.2-RELEASE-amd64-memstick.img
>>
>> I burned the image to a USB flash drive and then mounted it:
> Hi,
>
> Thanks, that helped.
>
> What alterations did you have to make?
>
> Thanks. Dave.
I wanted system images to fit "16 GB" SSD's and USB flash drives, with
wiggle room at the end to facilitate image migration:
MBR scheme
14g slice
1g boot
1g swap
12g root
free space
Some of the above can be achieved via the FreeBSD 11.2 installer user
interface, but others require changes to the installer script:
2019-06-01 11:28:11 toor@soho
~/FreeBSD-11.2-RELEASE-amd64-memstick/usr/libexec/bsdinstall
# cvs diff -r 1.1 zfsboot
Index: zfsboot
===================================================================
RCS file:
/var/local/cvs/dpchrist/FreeBSD-11.2-RELEASE-amd64-memstick/usr/libexec/bsdinstall/zfsboot,v
retrieving revision 1.1
retrieving revision 1.7
diff -r1.1 -r1.7
50c50
< : ${ZFSBOOT_POOL_CREATE_OPTIONS:=-O compress=lz4 -O atime=off}
---
> : ${ZFSBOOT_POOL_CREATE_OPTIONS:=-O compress=lz4 -O atime=off -O
copies=2}
92c92
< : ${ZFSBOOT_BOOT_POOL_CREATE_OPTIONS:=}
---
> : ${ZFSBOOT_BOOT_POOL_CREATE_OPTIONS:=-O copies=2}
102c102
< : ${ZFSBOOT_BOOT_POOL_SIZE:=2g}
---
> : ${ZFSBOOT_BOOT_POOL_SIZE:=1g}
123c123
< : ${ZFSBOOT_SWAP_SIZE:=2g}
---
> : ${ZFSBOOT_SWAP_SIZE:=1g}
133c133
< : ${ZFSBOOT_SWAP_MIRROR=}
---
> : ${ZFSBOOT_SWAP_MIRROR=YES}
196a197
> GPART_ADD_ALIGN_WITH_SIZE='gpart add %s -t %s -s %s "%s"'
953c954
< # 2. Add freebsd slice with all available space
---
> # 2. Add freebsd slice with size 14g
955,956c956,957
< f_eval_catch $funcname gpart "$GPART_ADD_ALIGN" "$align_small" \
< freebsd $disk ||
---
> f_eval_catch $funcname gpart "$GPART_ADD_ALIGN_WITH_SIZE"
"$align_small" \
> freebsd 14g $disk ||
1000c1001
< "$align_small" 2 freebsd-swap ${swapsize}b ${disk}s1 ||
---
> "$align_big" 2 freebsd-swap ${swapsize}b ${disk}s1 ||
1011c1012
< "$align_small" $mbrindex freebsd-zfs ${disk}s1 ||
return $FAILURE
---
> "$align_big" $mbrindex freebsd-zfs ${disk}s1 || return
$FAILURE
Here is the result:
2019-06-01 11:28:17 toor@soho
~/FreeBSD-11.2-RELEASE-amd64-memstick/usr/libexec/bsdinstall
# gpart show -p ada0 ada0s1
=> 63 31277169 ada0 MBR (15G)
63 1 - free - (512B)
64 29360128 ada0s1 freebsd [active] (14G)
29360192 1917040 - free - (936M)
=> 0 29360128 ada0s1 BSD (14G)
0 2097152 ada0s1a freebsd-zfs (1.0G)
2097152 1984 - free - (992K)
2099136 2097152 ada0s1b freebsd-swap (1.0G)
4196288 25163776 ada0s1d freebsd-zfs (12G)
29360064 64 - free - (32K)
That almost meets my goals, and will work on 4K drives.
(I changed "$align_small" to "$align_big" on lines 1001 and 1012, but
missed line 956. This caused the free spaces within the slice. I need
to change line 956.)
David
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