fastest way to ghost/image multiple machines?

2007-09-12 Thread Steve Franks
I'm interested in how to specify a release and a bunch of packages,
and squirt it to multiple machines.  Or perhaps I'd like to spec the
current binary contents of my machine (sans config files) so I could
rebuild it from scratch later, without backups, or perhaps install
another machine with my current set of packages, but 7.x instead of
6.2, etc.  Permutations on this theme seem endless, and don't appear
to be focused on in the handbook.

Also interested in installing to a spare disk in my system, then
putting said disk in another system.  I always get errors after
label'ing when I try it, presumably because I already have a
filesystem mounted as root, and it trys to mount the new one as root
to copy onto...

Steve
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Re: fastest way to ghost/image multiple machines?

2007-09-12 Thread Mel
On Wednesday 12 September 2007 21:47:23 Steve Franks wrote:
 I'm interested in how to specify a release and a bunch of packages,
 and squirt it to multiple machines.  Or perhaps I'd like to spec the
 current binary contents of my machine (sans config files) so I could
 rebuild it from scratch later, without backups, or perhaps install
 another machine with my current set of packages, but 7.x instead of
 6.2, etc.  Permutations on this theme seem endless, and don't appear
 to be focused on in the handbook.

 Also interested in installing to a spare disk in my system, then
 putting said disk in another system.  I always get errors after
 label'ing when I try it, presumably because I already have a
 filesystem mounted as root, and it trys to mount the new one as root
 to copy onto...

Sysinstall isn't smart enough. Use the source, Luke:
- /usr/src/UPDATING and search for cross-install (Hint: DESTDIR is your 
friend)
- /usr/obj|src can be nfs-mounted and installed from, here's a good tutorial 
you can expand on:
http://www.freebsddiary.org/makeworld-2boxes.php

Some gotchas/pointers:
- /sparedisk/etc/master.passwd will have stock user accounts
- sshd_enable=YES will not be in /sparedisk/etc/rc.conf (important when doing 
this remotely :) )
- /sparedisk/etc/rc.conf will not contain your network config.
- /sparedisk/boot/loader.conf does not exist, so you might be missing some
  drivers/features your new machine relies on.
- You can use sysinstall to partition the sparedisk, works like a charm even
  on running system, but:
  - Use [W]rite before [Q]uit
  - Make sure there's an 'a' partition for what will be root ('/'), else the
bootloader will give a cryptic error on the new system. This is best done
by giving a mount point '/' initially, then going over and changing it's
name.
  - Do not use mount points as they 'should' be, instead use a prefix, like:
mkdir /mnt/usr /mnt/var /mnt/home
then use /mnt as what should be '/', '/mnt/usr' what should be '/usr' etc.
Sysinstall will also succeed in mounting then and you can go right ahead
and make install DESTDIR=/mnt .

-- 
Mel who did the cross-install current not too long ago
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