[EMAIL PROTECTED] wrote:
Something seems magic in freebsd: I am looking for what does start
sysinstall at boot time when I boot from the installation CD.
The only thing related to systinstall is the setting of the init_path variable
in the loader.rc file but it is in comment thus the loader should finish
by launchinig init as usual so what does make it launch sysinstall instead?
I also examined /etc/ttys which is used by init but this file is standard
and I do not find anything that could tell init to start sysinstall instead
As you may guess, my goal is to create an customized installation CD in
order to install a network appliance wich embedds freebsd.
This is a tricky one, kind of black magic ;)
Seriously, it is quite simple:
You correctly located the init_path variable. This contains the
following (on a 6.3-RELEASE CD I have handy at the moment):
This is commented out, but the values shown are the built-in defaults.
Now, if you take a look at the CD filesystem structure, *there is* an
/sbin/init and there is *no* /stand/sysinstall. So, you would assume
that init would run first.
However, here comes the caveat:
The root filesystem when you boot your installation media, is *not* the
CD-ROM itself. Look at /boot/loader.conf:
You will find /boot/mfsroot.gz as the file that acts as the root filesystem.
You can actually examine the contents of this if you mount it using
mdconfig (assuming you mounted your install CD on /cdrom):
cp /cdrom/boot/mfsroot.gz /tmp
unzip mfsroot.gz (Can probably be mounted compressed(?), did not check)
mdconfig -f mfsroot md0
mount /dev/md0 /mnt
Check the contents of /mnt:
bin boot dev etc mnt sbin stand var
sbin is a symbolic link to stand. There is no '/stand/init' in , but
'/stand/sysinstall' exists. Therefore, sysinstall executes ;)
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