Hi,
I am still working on a nice automated installation CD system. It is
partially a custom boot CD and partially a site36.tgz file that
installs all the relevant packages, then does a scripted restoration
from out backup server. It's intended for bare-metal restores in the
event of complete disk or server failure, and should operate almost
totally unattended.
The only problem I have left to overcome is that of automatically
partitioning the disk at the first stage of the process. I know that
I can read an existing disklabel to a text file, and write a
disklabel to a disk from the contents of a text file. My
configuration file for each server would have an entry like this in it:
[partitions]
/ = 15%
swap = 512M
/home = 10%
/root = 10%
/var = *
/www = 25%
/logs = 10%
/tmp = 5%
The problem arises when, if going on to a brand new machine, that the
disk size may be different than the original it is restoring. As
part of the installer (in the OpenBSD install environment, booted off
an openbsd installer CD) I'd like to read the size of the disk and
partition the disk accordingly. would I need to generate all of this
information?
# size offset fstype [fsize bsize cpg]
a: 2048193 63 4.2BSD 1024 8192 16 # (Cyl.
0*- 2031)
b: 524160 2048256 swap # (Cyl. 2032
- 2551)
c: 117187500 0 unused 0 0 # (Cyl. 0
- 116257*)
d: 114605694 2572416 4.2BSD 1024 8192 16 # (Cyl. 2552
- 116248*)
I'd rather just tell it to create some given partitions and have it
handle the math itself. I could do approximate sums for partition
sizes based on numbers of bytes per parition versus drive space. How
much of the disklabel ASCII text file would I need to generate?
Could I assign default values to the drive, then partition it later?
The partitioning needs to happen after boot but before I start
installing packages (obviously). I have no problem with hacking the
installer script to suit my needs. I can see that I can also use the
-f switch to build my fstab for me, so I don't need to worry about
that, but I'd rather use as much of the OpenBSD installer code as
possible.
Gaby
--
Junkets for bunterish lickspittles since 1998!
[EMAIL PROTECTED]
http://weblog.vanhegan.net
