A couple of autoinstall(8) tweaks that I find useful.
I find it convenient to be able to specify a path to the response file.
I also prefer to use the DHCP supplied hostname rather than the MAC
address.
Index: install.sub
===================================================================
RCS file: /cvs/src/distrib/miniroot/install.sub,v
retrieving revision 1.829
diff -u -p -r1.829 install.sub
--- install.sub 5 Apr 2015 12:37:14 -0000 1.829
+++ install.sub 6 Apr 2015 13:33:02 -0000
@@ -304,7 +304,7 @@ retrap() {
# Fetch response file for autoinstall.
get_responsefile() {
- local _rf _ifdev _mac _mode _server _lf
+ local _rf _ifdev _mac _mode _server _lf _path
action=
[[ -f /auto_upgrade.conf ]] && _rf=/auto_upgrade.conf _mode=upgrade
@@ -328,16 +328,18 @@ get_responsefile() {
[[ -n $_ifdev ]] && dhclient $_ifdev || break
_lf=/var/db/dhclient.leases.$_ifdev
_server=$(sed "/^ *next-server /!d;s///;s/;$//;q" $_lf)
- _mode=$(sed -E '/^ *filename
"auto_(install|upgrade)";$/!d;s//\1/;q' $_lf)
+ _mode=$(sed -E '/^ *filename
"(.*\/)?auto_(install|upgrade)";$/!d;s//\2/;q' $_lf)
+ _path=$(sed -E '/^ *filename "(.*\/)[^/]+";$/!d;s//\1/;q' $_lf)
hostname "$(sed -E '/^ *option host-name "(.*)";$/!d;s//\1/;q'
$_lf)"
done
# Fetch response file if server and mode are known, otherwise tell which
- # one was missing. First try to fetch mac-mode.conf, then mode.conf.
+ # one was missing. First try to fetch mac-mode.conf, then
+ # hostname-mode.conf, and finally mode.conf.
if [[ -n $_server && -n $_mode ]]; then
_mac=$(ifconfig $_ifdev | sed 's/.*lladdr \(.*\)/\1/p;d')
- for _rf in {$_mac-,}$_mode; do
- _url=http://$_server/$_rf.conf
+ for _rf in {$_mac-,$(hostname -s)-,}$_mode; do
+ _url=http://$_server/$_path$_rf.conf
echo "Fetching $_url"
if ftp -Vo "/ai.$_mode.conf" "$_url" 2>/dev/null; then
action=$_mode
Index: autoinstall.8
===================================================================
RCS file: /cvs/src/share/man/man8/autoinstall.8,v
retrieving revision 1.11
diff -u -p -r1.11 autoinstall.8
--- autoinstall.8 23 Oct 2014 21:33:21 -0000 1.11
+++ autoinstall.8 6 Apr 2015 13:31:22 -0000
@@ -47,22 +47,16 @@ It behaves as if the user selected '(A)u
always fetches the response file via the netboot interface.
.Ss Fetching the response file
.Nm
-uses HTTP to fetch one of the files
-.Pa install.conf
-or
-.Ar MAC_address Ns - Ns Pa install.conf
-for install answers, or one of
-.Pa upgrade.conf
-or
-.Ar MAC_address Ns - Ns Pa upgrade.conf
-for upgrade answers.
-The URL used to fetch the file is constructed from information provided in
-the
+uses HTTP to fetch a response file which provides answers to
+install or upgrade questions.
+The URL used to fetch the response file is constructed from
+information provided in the
.Xr dhcpd.conf 5
-statements
-.Ic next-server
+.Ic next-server ,
+.Ic filename
and
-.Ic filename .
+.Ic host-name
+options.
If the
.Ar filename
is
@@ -71,6 +65,7 @@ then the URLs tried are, in order:
.Sm off
.Bd -unfilled -offset indent
.No http:// Ar next-server No / Ar MAC_address No -install.conf
+.No http:// Ar next-server No / Ar host-name No -install.conf
.No http:// Ar next-server No /install.conf
.Ed
.Sm on
@@ -79,7 +74,7 @@ where
.Ar MAC_address
is a string of six hex octets separated by colons
representing the MAC
-address of the interface being used to fetch the files.
+address of the interface being used to fetch the response file.
.Pp
If the
.Ar filename
@@ -89,9 +84,15 @@ the URLs tried are, in order:
.Sm off
.Bd -unfilled -offset indent
.No http:// Ar next-server No / Ar MAC_address No -upgrade.conf
+.No http:// Ar next-server No / Ar host-name No -upgrade.conf
.No http:// Ar next-server No /upgrade.conf
.Ed
.Sm on
+.Pp
+If the
+.Ar filename
+includes a parent directory it will be used as a server relative
+path in the http URL to fetch the response file.
.Pp
On architectures where the
.Ic filename
It's handy for the log to remain on the host as a reference. Sometimes the
email gets lost (e.g. caught in a spam trap).
Index: install.sub
===================================================================
RCS file: /cvs/src/distrib/miniroot/install.sub,v
retrieving revision 1.829
diff -u -p -r1.829 install.sub
--- install.sub 5 Apr 2015 12:37:14 -0000 1.829
+++ install.sub 6 Apr 2015 13:33:02 -0000
@@ -2305,13 +2318,12 @@ elif [[ -z $RESPFILE ]]; then
if [[ -f /ai.done ]]; then
# Generate unique filename and let rc.firsttime feed it to
# whatever mail system we have at hand by then.
- while _lf=/mnt/var/log/ai.log.$RANDOM && test -e $_lf; do done
+ _lf=/mnt/var/log/$action.$(date +%Y%m%d%H%M%S)
cp /ai.log $_lf
chmod 600 $_lf
_lf=${_lf#/mnt}
cat <<__EOT >>/mnt/etc/rc.firsttime
-( /usr/bin/mail -s '$(hostname) $action log' root < $_lf &&
- rm $_lf ) >/dev/null 2>&1 &
+/usr/bin/mail -s '$(hostname) $action log' root < $_lf >/dev/null 2>&1 &
__EOT
exec reboot
else
Nathanael
