From: hackbard <hackbard>
Date: Wed, 8 Dec 2004 02:56:26 +0000 (+0000)
Subject: finished minimal fai procedure + docu
X-Git-Url: https://hackdaworld.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b827aab00491c32a3fc9f8debaad6995d5391d83;p=hdw-linux%2Fhdw-linux.git

finished minimal fai procedure + docu
---

diff --git a/doc/CHANGELOG b/doc/CHANGELOG
index f61aaff..a7fdaf9 100644
--- a/doc/CHANGELOG
+++ b/doc/CHANGELOG
@@ -1,3 +1,8 @@
+*) 2004-12-08
+
+- finished minimal fai concepts
+- added some documentation for fai
+
 *) 2004-12-07
 
 - added fai directory including new rc_fai.sh script
diff --git a/doc/FAI b/doc/FAI
index 180ae6e..85ccef8 100644
--- a/doc/FAI
+++ b/doc/FAI
@@ -10,6 +10,7 @@ files:
 ------
 
 ./scripts/Create-FAI
+./fai/*
 ./doc/FAI
 
 procedure
@@ -24,7 +25,12 @@ procedure
 	      the install process. fai-server is actually the target you will
 	      need as a running system to have pxeboot/nfsutils and stuff.
 
-		./scripts/Create-FAI
+	note: you might want to fetch hdw binaries from a mirror.
+	      edit your /etc/hdw-get.conf file.
+
+		./scripts/Create-FAI <nfsroot>
+
+		where <nfsroot> is the directory to install the fairoot.
 
 	2) edit the following files to match your needs, and restart services
 
@@ -35,15 +41,130 @@ procedure
 
 		(have a look at chapter "fai server configuration")
 
+	note: again you might want to use a mirror. edit hdw-get.conf, but make
+	      sure it is the one from fairoot.
+
 	3) adapt configs in ./fai (see chapter "fai config files")
 
-	4) pxeboot your install candidates and watch installation
+	4) pxeboot your install candidates. this is actually not fully
+	   automated.
+
+		- type "fai" on pxeboot prompt
+		- after first bootup, use cfdisk to partition your harddisk
+		- touch a disk_ready file in configuration space
+		  (after using cfdisk, sync to disk file!)
+		- reboot and finaly wathc your target system to get hdw'ed :)
+
+	5) login, build a new kernel. copy new bzImage to /boot/vmlinuz_hdw
+	   and run lilo again. reboot and enjoy! good luck.
 
 
 fai config files
 ----------------
 
+	config files reside in 1) ./fai/config/<client_ip>/ and 2) ./fai/files/
+	directories.
+
+	config dir:
+
+		- the files reside in a subdirectory, which is simply the
+		  clients ip address, as different clients may need different
+		  config.
+		- files:
+			1) disk
+			2) packages
+
+			disk file is used to determine the partition layout and
+			used harddisk. the format: (example, its intuitive!)
+
+			# disk /dev/hda
+			# swap 7
+			1	/boot	ext3	format
+			5	/	ext3	format
+			6	/home	ext3	preserve
+
+			packages file contains packages to get installed. you
+			may use ./scripts/Helper -create_dist_files to create
+			one. make sure that all the packages are available on
+			the mirror, otherwise the fai install routine will
+			break. hint: switch the partitions to "preserve" and
+			hdw-get will not install already installed packages
+			again.
+			
+	 files dir:
+
+		- files called DEFAULT in a special directory will be copied to
+		  every client to the file of its dirname.
+		- files named like a clients ip address will be only copied to
+		  that client (again, the file will be the dirname)
+
+		example:
+
+		./fai/files/etc/X11/XF86Config/DEFAULT will be copied to all
+		clients as /etc/X11/XF86Config file.
+
+
 fai server configuration
 ------------------------
 
-[to be continued]
+there are several files you need to hack. here we go:
+
+	- dhcpd:
+
+		file: /etc/dhcpd.conf
+
+		examples rule, have a look at the configuration for my fai
+		client:
+
+		...
+		option routers 192.168.10.10;
+		option domain-name-servers 192.168.10.50, 194.25.134.203;
+		host compaq {
+        		fixed-address 192.168.10.80;
+        		hardware ethernet 00:50:8b:cb:8e:d2;
+        		allow booting;
+        		allow bootp;
+        		next-server hackstation; # the fai server
+        		server-name hackstation;
+        		filename "pxelinux.0";
+		}
+		...
+
+	- tftpboot (you will need tftp-hpa as tftpserver)
+
+		the scripts prepared a working fai config file at
+		/tftpboot/pxelinux.cfg, just add a symbolic link of your clients
+		ip address (in hex, use: gethostip) pointing to fai.
+		ofcourse you need to have the package syslinux installed.
+
+	- nfsd:
+
+		file: /etc/exports
+
+		the scripts added export entries. just substitute "foobar" to
+		the name or ip address of your fai clients.
+
+	- inetd
+
+		file: /etc/inetd.conf
+
+		make sure the tftpboot line is uncommented. if you have problems
+		of tftpd switching to user nobody google for solutions. if you
+		are too lazy substitute "nobody" by "root in inetd.conf. this
+		is dangerous though, you have been warned.
+
+note: restart all the mentioned services.
+
+troubleshooting
+---------------
+
+contact me! -> http://www.hackdaworld.dyndns.org/contents/contact/
+email: hackbard@hackdaworld.dyndns.org
+irc: irc.hackdaworld.dyndns.org - #hackdaworld
+
+greets
+------
+
+good luck now, you are own your own! enjoy hdw. :)
+
+regards, hackbard.
diff --git a/fai/scripts/rc_fai.sh b/fai/scripts/rc_fai.sh
index e297052..192c63f 100755
--- a/fai/scripts/rc_fai.sh
+++ b/fai/scripts/rc_fai.sh
@@ -9,12 +9,43 @@ root=/trg
 croot=/fai/config
 myip="`ifconfig eth0 | grep inet\ addr | awk '{ print $2 }' | awk -F: '{ print $2 }'`"
 myconf=$croot/$myip
+proot=""
 
 if [ ! -d $myconf ] ; then
 	echo "no config found, aborting fai"
 	exit
 fi
 
+echo "debug:"
+route
+ifconfig
+
+#
+# we need writeable /tmp
+#
+mount -tramfs ramfs /tmp
+
+#
+# check if disk is ready
+#
+if [ ! -f $croot/$myip/disk_ready ] ; then
+	echo
+	echo "you're disk seems to not be ready. login now and use cfdisk"
+	echo "to partition your harddisk. please make sure it's compatible"
+	echo "to $croot/$myip/disk:"
+	cat $croot/$myip/disk
+	echo
+	echo "after partitioning your harddisk please touch the file"
+	echo "$croot/$myip/disk_ready"
+	echo "on your fai install server and reboot."
+	echo "... fully automated, he? :p"
+	echo
+	exit
+fi
+
+#
+# disk
+#
 disk=0
 disk=`grep '#\ disk' $myconf/disk | awk '{ print $3 }'`
 if [ ! -b $disk ] ; then
@@ -28,27 +59,110 @@ if [ "$swap" != "0" -a -b ${disk}${swap} ] ; then
 	mkswap ${disk}${swap}
 	echo "done"
 fi
-
-cat $myconf/disk | grep -v '^#' | while read nr mp; do
+cat $myconf/disk | grep -v '^#' | while read nr mp fs ac; do
 	if [ -b ${disk}${nr} ] ; then
-		echo "making filesystem for $mp"
-		mke2fs -j ${disk}${nr}
+		action=""
+		[ "$fs" = "ext3" ] && action="mke2fs -j"
+		[ "$fs" = "ext2" ] && action="mke2fs"
+		if [ "$ac" = "format" -a -n "$action" ] ; then
+			echo "making filesystem for $mp"
+			$action ${disk}${nr}
+		fi
 		if [ "$mp" = "/" ] ; then
 			echo "mounting root partition"
 			mount ${disk}${nr} $root
+			mkdir -p $root/etc
+			grep -v '/dev/root' /etc/fstab > $root/etc/fstab
+			echo -e "${disk}${nr}\t$mp\t$fs\tdefaults 0 2" >> \
+				$root/etc/fstab
+			proot=${disk}${nr}
 		fi
 	fi
 done
-
-cat $myconf/disk | grep -v '^#' | while read nr mp; do
+cat $myconf/disk | grep -v '^#' | while read nr mp fs ac; do
 	if [ "$mp" != "/" ] ; then
 		if [ -b ${disk}${nr} ] ; then
 			mkdir -p $root/$mp
 			mount ${disk}${nr} $root/$mp
+			echo -e "${disk}${nr}\t$mp\t$fs\tdefaults 0 2" >> \
+				$root/etc/fstab
 		fi
 	fi
 done
+# packages might install new fstab file, stored.
+cp $root/etc/fstab $root/etc/fstab~
+
+#
+# install packages
+#
+cd /tmp # we need to wget stuff!
+pkglist=""
+[ -f /fai/config/$myip/packages ] && pkglist=/fai/config/$myip/packages
+if [ -z "$pkglist" ] ; then
+	echo "cant find package list for $myip, aborting"
+	exit
+fi
+hdw-get dist-install $root $pkglist
+
+#
+# config / files
+#
+cp $root/etc/fstab~ $root/etc/fstab
+cp /etc/hdw-get.conf $root/etc
+# files
+cd /fai/files
+for file in `find -type f | grep -v CVS`; do
+	srcf=`basename $file`
+	trgf=`dirname $file`
+	[ "$srcf" = "DEFAULT" -o "$srcf" = "$myip" ] && cp -v $file $root/$trgf
+done
+
+#
+# essential device file
+#
+[ ! -c $root/dev/null ] && mknod -m 0666 $root/dev/null c 1 3
+[ ! -c $root/dev/console ] && mknod -m 0600 $root/dev/console c 5 1
+
+
+#
+# lilo
+#
+cat > $root/etc/lilo.conf << EOF
+boot=$disk
+prompt
+lba32
+timeout=30
+
+default=vmlinuz_hdw
+
+image=/boot/vmlinuz_hdw
+	label=vmlinuz_hdw
+	append="root=$proot"
+	read-only
+
+EOF
+# run lilo in chroot
+cat > $root/run_lilo.sh << EOF
+mount /dev
+mount /sys
+mount /proc
+udevstart
+mount -a
+ln -s /proc/self/fd /dev/fd
+ln -s /proc/self/fd/0 /dev/stdin
+ln -s /proc/self/fd/1 /dev/stdout
+ln -s /proc/self/fd/2 /dev/stderr
+ln -s /proc/kcore /dev/core
+lilo
+EOF
+chmod 755 $root/run_lilo.sh
+chroot $root /usr/bin/env PATH="/bin:/usr/bin:/sbin:/usr/sbin" /bin/bash \
+	--login +h /run_lilo.sh
+
+echo
+echo "fai finished, good luck for reboot ... :)"
+echo
 
-echo "to be continued ...."
+touch /tmp/fai_finished
 
 exit 0
diff --git a/misc/fai/fai_boot b/misc/fai/fai_boot
new file mode 100755
index 0000000..b829d34
--- /dev/null
+++ b/misc/fai/fai_boot
@@ -0,0 +1,81 @@
+#!/bin/sh
+#
+# hdw - linux /etc/init.d/boot (copied from ROCK Linux + modifications)
+#
+# modified for fai routine
+#
+
+exec 2>&1
+
+export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/fai/scripts
+
+echo "** booting hdw-linux FAI routine ... **"
+
+mount -v -n /dev
+mount -v -n /proc ; mount -v -n /sys
+mkdir -p /dev/shm ; mount -v -n /dev/shm
+mkdir -p /dev/pts ; mount -v -n /dev/pts
+
+echo "loading kernel modules and configuring the kernel ..."
+. /etc/conf/kernel
+
+echo "populating device nodes ..."
+/etc/init.d/udev start
+
+if [ -f /etc/conf/devfs ] ; then
+	echo "configuring device nodes ..."
+	. /etc/conf/devfs
+fi
+
+echo "activating swap-devices ..."
+swapon -a
+
+mount -v -n -o remount,rw /
+mount -v -a -t nocoda,nfs
+
+if type hostname > /dev/null 2>&1
+then
+	echo "set the hostname to [`cat /etc/HOSTNAME`] ..."
+	hostname `cat /etc/HOSTNAME`
+else
+	echo "hostname not set: no 'hostname' command found"
+fi
+
+if type loadkeys > /dev/null 2>&1
+then
+	echo "set the keyboard keymappings ..."
+	if [ -L /etc/default.keymap ] ; then
+		oldpwd="`pwd`" ; cd /etc
+		loadkeys `ls -l default.keymap | tr -s ' ' | cut -f11 -d' '`
+		cd "$oldpwd" ; unset oldpwd
+	elif [ -f /etc/default.keymap ] ; then
+		loadkeys /etc/default.keymap
+	else
+		echo "no /etc/default.keymap found."
+	fi
+else
+	echo "keymappings not configured: no 'loadkeys' command found."
+fi
+
+if type ifconfig > /dev/null 2>&1
+then
+	echo "setting up loopback networking ..."
+	ifconfig lo 127.0.0.1 netmask 255.0.0.0 up
+	route add -net 127.0.0.0 netmask 255.0.0.0 dev lo
+fi
+
+echo 'setting overflow UID and GID kernel parameters ...'
+sysctl -w kernel.overflowuid=`id -u nobody` | tr -d '\n'
+echo -n ', ' ; sysctl -w kernel.overflowgid=`id -g nobody`
+
+echo "initializing kernel random number generator ..."
+[ -f /var/state/random-seed ] && cat /var/state/random-seed >/dev/urandom
+
+echo
+echo
+echo "start of FAI (fully automated installation) process, good luck ..."
+echo
+echo
+echo -en "starting portmap ..."
+/usr/sbin/portmap
+echo " done"
diff --git a/misc/fai/fai_rc b/misc/fai/fai_rc
new file mode 100755
index 0000000..4c1279f
--- /dev/null
+++ b/misc/fai/fai_rc
@@ -0,0 +1,91 @@
+#!/bin/sh
+#
+# hdw - linux /etc/init.d/rc (modified for fai)
+#
+# controls switching of runlevels	(copied from ROCK Linux)
+#
+
+exec 2>&1
+
+export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/fai/scripts
+
+echo "** running rc (fai) script **"
+
+echo "RC: Previous runlevel: $PREVLEVEL, current runlevel: $RUNLEVEL."
+
+curdir=/etc/init.d/rc$RUNLEVEL.d
+prevdir=/etc/init.d/rc$PREVLEVEL.d
+
+#
+# run the KILL scripts of the previous runlevel (if needed)
+#
+if ! [ $PREVLEVEL = S -o $PREVLEVEL = N ]
+then
+	echo "RC: Leave runlevel $PREVLEVEL ..."
+	for i in $prevdir/K*; do
+		test -x "$i" || continue
+		x="`echo "$i" | sed "s,$prevdir/K..,$curdir/S??,"`"
+		[ "`echo $x`" = "$x" ] || continue ; unset x
+		$i stop < /dev/null
+	done
+fi
+
+echo "RC: Enter runlevel $RUNLEVEL ..."
+
+if [ $RUNLEVEL = S ]
+then
+	#
+	# Kill all processes
+	#
+	echo "Sending all processes a SIGTERM (15) ..."
+	killall5 -15
+	sleep 5
+	echo "Sending all processes a 2nd SIGTERM (15) ..."
+	killall5 -15
+	sleep 3
+	echo "Sending all processes a SIGKILL (9) ..."
+	killall5 -9
+	sleep 3
+elif [ $RUNLEVEL = 0 -o $RUNLEVEL = 6 ]
+then
+	#
+	# shut down the system
+	#
+	if [ $RUNLEVEL = 0 ] ; then
+	mode=halt ; else mode=reboot ; fi
+	/etc/init.d/down $mode
+	exit 0
+else
+	#
+	# run the START scripts of the current (new) runlevel
+	#
+	for i in $curdir/S*; do
+		test -x "$i" || continue
+		x="`echo "$i" | sed "s,$curdir/S..,$prevdir/K??,"`"
+		[ "`echo $x`" = "$x" ] || continue ; unset x
+		$i start < /dev/null
+	done
+fi
+
+echo "mounting fai config space ..."
+FAI_MOUNT_LINE
+echo "done"
+
+echo "executing rc_fai.sh script ..."
+/fai/scripts/rc_fai.sh
+echo
+
+if [ -f /tmp/fai_finished ] ; then
+	echo
+	echo "FAI finished - congrats :)"
+	echo
+	echo "you may login as root (passwd = hdw), chroot to /trg and"
+	echo "build a new kernel. copy the new bzImage to /boot/vmlinuz_hdw"
+	echo "and run lilo. imho this has to be done as we only have a nfsroot"
+	echo "kernel image searching init on a nfsroot. i might be wrong here."
+	echo
+else
+	echo "login: root | passwd = hdw"
+fi
+
+exit 0
diff --git a/scripts/Create-FAI b/scripts/Create-FAI
index 046b1d3..e88406c 100755
--- a/scripts/Create-FAI
+++ b/scripts/Create-FAI
@@ -33,23 +33,29 @@ if [ ! -f ./fai/nfsroot-packages ] ; then
 
 	echo "pretending default target for nfsroot install now"
 	export hdw_target=default
+	echo "hdw_target=default # FAI_WAS_HERE" >> Config # dirty!
 
 	./scripts/Helper -create_dist_files
 
 	export hdw_target=$hdw_orig_target
+	grep -v '# FAI_WAS_HERE' Config > tmp~
+	mv tmp~ Config
 	echo "orig target restored to $hdw_target"
 
 	cp ./distro/default ./fai/nfsroot-packages
-fi
 
-echo "deleting some packages from list now"
-del="linux-libc-headers man-pages binutils gcc m4 autoconf automake"
-del="$del man make patch bin86 nasm lilo cvs"
-del="$del bootdisk" # just by now - may contain kernel image later
-for package in $del; do
-	grep -v ^$package ./fai/nfsroot-packages > ./fai/tmp~
-	mv ./fai/tmp~ ./fai/nfsroot-packages
-done
+	echo "deleting some packages from list now"
+	del="linux-libc-headers man-pages binutils gcc m4 autoconf automake"
+	del="$del man make patch bin86 nasm lilo cvs"
+	del="$del bootdisk" # just by now - may contain kernel image later
+	for package in $del; do
+		grep -v ^$package ./fai/nfsroot-packages > ./fai/tmp~
+		mv ./fai/tmp~ ./fai/nfsroot-packages
+	done
+	echo "adding needed packages to list now"
+	echo "portmap" >> ./fai/nfsroot-packages
+	[ "$hdw_arch" = "ia32" ] && echo "lilo" >> ./fai/nfsroot-packages
+fi
 
 if [ ! -f $fairoot/packages_installed ] ; then
 	echo "creating nfsroot..."
@@ -65,23 +71,37 @@ fi
 if [ ! -f $fairoot/prepared_nfsroot ] ; then
 	echo "preparing nfsroot for automated install routine ..."
 	cd $fairoot
-	mknod -m 0666 dev/null c 1 3
-	mknod -m 0600 dev/console c 5 1
-	grep -v swap etc/fstab > tmp~
-	mv tmp~ etc/fstab
+	# special files (null & console)
+	[ ! -c dev/null ] && mknod -m 0666 dev/null c 1 3
+	[ ! -c dev/console ] && mknod -m 0600 dev/console c 5 1
+	# fstab
+	cp $home_dir/misc/sysfiles/etc/fstab ./etc
+	# the target directory
 	mkdir -p ./trg
+	# dir for mounting fai config
+	mkdir -p fai
+	# removing some services
 	for i in sysklogd network inetd nscd; do
 		rm -f etc/init.d/rc2.d/*${i}
 	done
-	sed "s%^exit\ 0%mount -tnfs $myip:/$home_dir/fai /fai%" \
-		etc/init.d/rc > tmp~
-	mv tmp~ etc/init.d/rc
+	# modified inittab, rc and bootscript
+	sed "s%| /sbin/btee .*%%g" $home_dir/misc/sysfiles/etc/inittab > \
+		etc/inittab
+	cp $home_dir/misc/fai/fai_boot ./etc/init.d/boot
+	sed "s%^FAI_MOUNT_LINE%mount -tnfs $myip:/$home_dir/fai /fai%" \
+		$home_dir/misc/fai/fai_rc > etc/init.d/rc
 	chmod 755 etc/init.d/rc
-	echo "/fai/scripts/rc_fai.sh" >> etc/init.d/rc
-	echo "shutdown -r now" >> etc/init.d/rc
+	# modify hdw-get.conf
+	sed "s%hdw_arch_opt=.*%hdw_arch_opt=$hdw_arch_opt%" etc/hdw-get.conf > \
+		tmp~
+	mv tmp~ etc/hdw-get.conf
+	# get to home_dir again
 	cd $home_dir
 	echo "done"
 	touch $fairoot/prepared_nfsroot
+else
+	echo "nfsroot seems to be prepared already"
+	echo "(del $fairoot/prepared_nfsroot to recreate it)"
 fi
 
 echo "checking pxe/nfs environment ..."
@@ -94,11 +114,18 @@ if [ ! -f /tftpboot/pxelinux.0 ] ; then
 	cp /usr/lib/syslinux/pxelinux.0 /tftpboot
 fi
 mkdir -p /tftpboot/pxelinux.cfg
-echo -e "LABEL fai" > /tftpboot/pxelinux.cfg/fai
-echo -e "\tKERNEL vmlinuz_hdw" >> /tftpboot/pxelinux.cfg/fai
-echo -e "\tAPPEND root=/dev/nfs nfsroot=$myip:$fairoot ip=dhcp" >> \
-	/tftpboot/pxelinux.cfg/fai
-echo -e "\tPROMPT 1" >> /tftpboot/pxelinux.cfg/fai
+cat > /tftpboot/pxelinux.cfg/fai << EOF
+PROMPT 1
+DEFAULT disk
+TIMEOUT 200
+
+LABEL fai
+	KERNEL vmlinuz_hdw
+	APPEND root=/dev/nfs nfsroot=$myip:$fairoot ip=dhcp
+
+LABEL disk
+	LOCALBOOT 0
+EOF
 echo -e "$fairoot\tfoobar(async,ro,no_root_squash)" >> /etc/exports
 echo -e "$home_dir/fai\tfoobar(async,ro,no_root_squash)" >> /etc/exports