Manolis Kiagias wrote:
On 11/02/2010 12:08 π.μ., Pierre-Luc Drouin wrote:
What I am trying to do is basically to install FreeBSD 8.0 on a CD. I
followed these instructions to install FreeBSD on a USB stick:
http://typo.submonkey.net/articles/2006/04/13/installing-freebsd-on-usb-stick-episode-2
minus the fdisk/bsdlabel/newfs part . I just set up rc.conf to
configure the ethernet interface with DHCP and load sshd
then I am now creating an iso image with the boot image. So at the
root of the CD I will have the boot directory containing the kernel
subdirectory.
I figured out about the boot image error from mkisofs. I had to copy
cdboot into the actual boot directory for the image and the path
specified by the -b option is relative to the root directory of the CD...
So should this work according to you?
Thanks!
It is going to be an interesting experiment. The official install
CD/DVDs boot from boot/kernel on the CD but the root filesystem used is
actually in an mfs (memory disk). Also it executes sysinstall instead of
init at the end of the boot sequence. I suppose you can mount the root
filesystem from CD as read-only but you will have to handle things like
/var and /usr and you will probably need some writing capability. I am
sure this can be done in more than a few ways though I've never
researched this myself.
yes I did some checks and it seems that sysinstall is loaded via the
mfsroot instruction in loader.conf that somehow loads /stand/boot_crunch
in the mfsroot image. If I change the content of loader.conf I think it
should behave like a regular installation (?). I have also written a
special fstab:
# Device Mountpoint FStype Options Dump
Pass#
/dev/iso9660/FreeBSD_Custom / cd9660 ro,noatime 0 0
md /etc_tmp mfs rw,-s4M,nosuid,noatime
0 0
/etc_tmp /etc nullfs rw 0 0
md /tmp mfs rw,-s16M,nosuid,noatime
0 0
md /var/run mfs rw,-s4M,nosuid,noatime
0 0
md /var/log mfs rw,-s16M,nosuid,noatime
0 0
/proc /proc procfs rw,noauto 0 0
/tmp /var/tmp nullfs rw 0 0
As you can see I do not have any hardcoded device name. I use the CD
label, which is used by geom_label to create a device file in
/dev/iso9660/. So in order to have geom_label loaded as early as
possible I have added geom_label_load="YES" in loader.conf. I hope this
will work...
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