On 11/11/2018 1:28 PM, Andrew Lemin wrote:
Hi list,
I really need some help mounting an install.fs disk image, and hope someone
can help :)
I have been trying and failing to create an auto-installing USB flash drive
for OpenBSD.
All of the below steps are being performed using an existing OpenBSD VM
1) Create /auto_install.conf file
https://man.openbsd.org/autoinstall
http://eradman.com/posts/autoinstall-openbsd.html
- Done
2) Install 'upobsd' package
pkg_add -i upobsd
- Done
3) Inject newly created 'auto_install.conf' into a local 'bsd.rd' RAM disk
upobsd -u /auto_install.conf -o /tmp/bsd.rd
- Done
4) Add updated 'bsd.rd' file into 'install.fs'
4a) Associate image with a vnd device so disk image can be mounted as a
filesystem image
vnconfig vnd1 /home/sysadmin/install64.fs
- Done
4b) Mount new vnd1c device (this is where I'm stuck)
****** Here is where I get lost. All the guides refer only to using
install.iso (whos 'a:' and 'c:' partitions are ISO9660 filetypes - for CD
based installs), but I need to use the install.fs (for USB based installs)
******
fw1# mount /dev/vnd1c /mnt
mount_ffs: /dev/vnd1c on /mnt: Invalid argument
fw1# mount -t cd9660 /dev/vnd1c /mnt
mount_cd9660: /dev/vnd1c on /mnt: Invalid argument
fw1# mount -t msdos /dev/vnd1c /mnt
mount_msdos: /dev/vnd1c on /mnt: not an MSDOS filesystem
fw1# mount -t ext2fs /dev/vnd1c /mnt
mount_ext2fs: /dev/vnd1c on /mnt: Input/output error
As you can see, none of the the types I know about are working?
bsd1# disklabel vnd1
# /dev/rvnd1c:
type: vnd
disk: vnd device
label: fictitious
duid: e5445c1e269855f0
flags:
bytes/sector: 512
sectors/track: 100
tracks/cylinder: 1
sectors/cylinder: 100
cylinders: 7382
total sectors: 738240
boundstart: 1024
boundend: 737280
drivedata: 0
16 partitions:
# size offset fstype [fsize bsize cpg]
a: 736256 1024 4.2BSD 2048 16384 16142
c: 738240 0 unused
i: 960 64 MSDOS
I cannot work out what the filesystem should be? It shows as 'unused' here.
NB; If I try with the 'install.iso' disk image the vnd mount works fine
(with '-t cd9660').
But I need this to work for a flash drive?
Assuming I could get past this, I think I would then need to do the
following;
4c) Copy in bsd.rd
cp /tmp/bsd.rd /mnt/
4d) Unmount /mnt
umount /mnt
4e) Disassociate vnd1
vnconfig -u /dev/vnd1
6) copy modified install.fs image to USB flash..
dd if=install*.fs of=/dev/rsd6c bs=1m
Thanks in advance for your time and help.
Andy.
Use the 'a' partition, not 'c'.
