Date: Mon, 25 Jan 1999 17:04:14 +0100 (MET) From: Luigi Rizzo <luigi@labinfo.iet.unipi.it> To: dillon@apollo.backplane.com (Matthew Dillon) Cc: current@FreeBSD.ORG Subject: Re: beginnings of a diskless boot sequence being committed Message-ID: <199901251604.RAA27194@labinfo.iet.unipi.it> In-Reply-To: <199901251754.JAA06826@apollo.backplane.com> from "Matthew Dillon" at Jan 25, 99 09:54:12 am
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> :> 'kern.conf_dir' which the kernel initially sets to nothing.
> :
> :ok, i can only suggest that if you replace the sysctl kern.conf_dir
> :variable with a shell variable as i did, you can achieve a more
...
> That's what I had originally, but extracting the machine's IP
> address is not trivial, and I didn't want to stick:
>
> bootp_ifc=`route -n get default | fgrep interface | awk '{ print $2; }'`
> bootp_ipa=`ifconfig $bootp_ifc | fgrep inet | head -1 | awk '{ print $2; }'`
I think it is much easier than that. The kernel BOOTP support sets
the machine's hostname, so you can do something like
if [ "`hostname`" = "" ]
then
# regular non-bootp sequence
mount -u -o rw /
...
mount -a -t nonfs
else
. /etc/rc.diskless
fi
if you want, save the `hostname` before executing rc.network to
remember if you started as diskless or not.
> :I haven't seen how you suggest to build&populate the MFS filesystems --
...
> There isn't much to build. Most of the MFS filesystems start out
> empty.
ok here we use a different approach. For simplicity I am using a
single MFS system with all the things you put in /var, and including
/var/dev and /var/etc (with /dev -> /var/dev and /etc -> /var/etc
on the diskless machine).
cheers
luigi
-----------------------------------+-------------------------------------
Luigi RIZZO .
EMAIL: luigi@iet.unipi.it . Dip. di Ing. dell'Informazione
HTTP://www.iet.unipi.it/~luigi/ . Universita` di Pisa
TEL/FAX: +39-050-568.533/522 . via Diotisalvi 2, 56126 PISA (Italy)
-----------------------------------+-------------------------------------
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