Variables

The following Variables do exist in FAI (example values included):

Please do not edit that much, without contacting Mrfai. Currently it's my private list of variable and comments.

type: int = internal use only; CS used in config space (often defined by *.var)

Which variables are needed inside the nfsroot, so the install clients can use them? (maybe write them into fai-client.var or nfsroot.var). Then do not copy fai.conf into the nfsroot any more.

name	type	example value	created by	used by	comments
BROADCAST		192.168.0.127	get-boot-info	scripts/FAIBASE/30-interface
DNSSRVS		192.168.1.16	get-boot-info	create_resolv_conf
DNSSRVS_1		192.168.1.16	get-boot-info		first element of DNSSRV
DOMAIN		workgroup.de	get-boot-info	task_setup() task_prepareapt()
NETMASK		255.255.255.128	get-boot-info
NETWORK		192.168.0.0	get-boot-info
IPADDR		192.168.0.14	get-boot-info
GATEWAYS		192.168.0.1	get-boot-info
GATEWAYS_1		192.168.0.1	get-boot-info
SERVER		kueppers	get-boot-info
--
DEBIAN_FRONTEND	int	noninteractive		dpkg -i
do_init_tasks	int	boolean		fai, task_confdir(), prcopyleft()	1 if doing net or CD installations
--
FAI		/fai	fai.conf	almost every function
FAI_ETC_DIR		/etc/fai	fai -c	make-fai-nfsroot, fai-mirror, fai-cd, task_prepareapt, fai_init()
FAI_ACTION		install, sysinfo, softupdate	fai-chboot via kernel command line	save_log_local() save_log_remote_shell() save_log_remote() get_bootp_info() task_action(), fai-savelog-ftp, updatebase
FAI_FLAGS		'createvt sshd'	kernel command line, fai-chboot	define_fai_flags()	rename flags, e.g $flag_sshd
FAI_CONFIG_SRC		nfs://faiserver/srv/fai/config	make-fai-nfsroot	get-config-dir	m-f-n writes its value to $NFSROOT/etc/fai/fai.conf
FAI_LOCATION		faiserver:/srv/fai/config	make-fai-nfsroot	get_bootp_info() get_fai_dir() get_fai_cvs()	replaced by FAI_CONFIG_SRC
FAI_LOGPROTO		ftp	fai.conf	fai-setup, save_log_remote()	replaces FAI_REMOVECP and FAI_REMOTESH, may be removed from fai.conf, should be defined in class/*.var, but fai-setup needs this too, maybe add option to fai-setup that determines if ssh/rsh should be set up
FAI_ROOT	const	/target	bin/fai	almost every script	$target has the same value
fai_rundate	int	20060123_163824	task_setup()	fai-savelog
FAI_VERSION	const	FAI 3.2		fai, prcopyleft()
FAI_CONFIGDIR	int	/srv/fai/config	fai.conf	*.postinst, fai-setup, fai-cd, fai-mirror, make-fai-nfsroot
HOSTNAME		demohost		very often	may the hostname change during installtion? Is the hostname FQDN in some cases? numeric hostname if host-decl-name off in dhcpd.conf
HOSTTYPE	int	x86_64	bash variable	prcopyleft
FAI_ALLOW_UNSIGNED		*.var		prepareapt	allow installation of packages from unsigned repositories
LOGDIR		/tmp/fai	fai	very often
LOGPASSWD	CS		*.var	fai-savelog-ftp	moved from fai.conf to CS
LOGREMOTEDIR	CS	upload	*.var	fai-savelog-ftp	moved from fai.conf to CS
LOGSERVER	CS		*.var	fai-savelog, fai-savelog-ftp	default: LOGSERVER=$SERVER, moved from fai.conf to CS
LOGUSER		fai	fai.conf	fai-setup, fai-savelog, fai-savelog-ftp,task_chboot()	default: LOGUSER= will disable logging
MNTPOINT		/media/mirror		make-fai-nfsroot, fai-mirror, task_mirror()	influences entries in sources.list, may become a fixed path
NFSROOT		/srv/fai/nfsroot/	make-fai-nfsroot.conf	fai-setup, make-fai-nfsroot, fai-cd, fai-mirror, make-fai-bootfloppy	not needed in $NFSROOT, only needed on the install server
STOP_ON_ERROR	int	99999	*.var	task_error()	errors greater STOP_ON_ERROR will cause fai to stop the installation
TFTPROOT		/srv/tftp/fai	make-fai-nfsroot.conf	make-fai-nfsroot, fai-chboot	not needed in $NFSROOT, only needed on the install server
PATH	int	/usr/local/sbin:...	fai
SERVERINTERFACE		eth0	make-fai-nfsroot.conf	fai-setup	used to specify interface when building exportfs line, only needed when install server has multiple interfaces
FAI_DEBMIRROR		$mirrorhost:/srv/debmirror	fai.conf		move to make-fai-nfsroot.conf, but needed in $NFSROOT/../fai.conf
--
HOST		demohost	given on kernel command line		can redefine host name
cfclasses	int	DEFAULT.LINUX.LAST	task_defclass()	cfagent scripts
classes	int	DEFAULT LINUX LAST	task_defclass()	almost every script
device_size	int	'sda 71687372'		set_disk_info()	all disks and their sizes; may become local variable
disklist	int	sda	set_disk_info()	setup_harddisks, fai-mount-disk
faimond	int	0			determines if faimond is running, merge $faimond and $monserver
monserver		kueppers	task_confdir	sndmon()	default: monserver=$SERVER, may be removed, but must be set very early (e.g in fai.conf)
ip	int	dhcp	fai-chboot via kernel append parameter	get-boot-info
--
netdevices	int	eth0	get-boot-info	get-boot-info, task_sysinfo, dhclient-fai-script
netdevices_all	int	eth0 eth1	get-boot-info	get-boot-info, task_sysinfo
netdevices_up		eth0	get-boot-info	get-boot-info, task_sysinfo
nfsroot	int	/srv/fai/nfsroot/	fai-chboot via kernel append parameter	kernel	may contain server's IP address, may contain nfs parameters like: v2,rsize=32768,wsize=32768
renewclass	int	boolean		task_defclass()	on softupdate recalculate the list of classes, unset after use
romountopt	int	-o async,noatime,ro			unset after use
sndhostname			task_confdir()	sndmon()	sndhostname=$HOSTNAME; client's hostname, do not replace with $HOSTNAME, since HOSTNAME may change during installation
flag_sshd	int	boolean	define_fai_flags()
flag_createvt	int	boolean	define_fai_flags()
task_error	int	integer		every task can set it	formerly $terror
target		/tmp/target			same as $FAI_ROOT
ROOTCMD		'chroot /tmp/target'		almost every script
stamp	int	..._IN_PROGRESS
CONSOLEFONT	CS		class/*.var
KEYMAP	CS	de	class/*.var
BOOT_PARTITION	CS	/dev/sda1	setup_harddisks	grub/menu.lst/postinst
ROOT_PARTITION	CS	/dev/sda1	setup_harddisks	LILO/20-create-liloconf
UTC	CS	yes	class/*.var	example/simple/scripts
TIMEZONE	CS	Europe/Berlin	class/*.var	example/simple/scripts
liloappend	CS		class/*.var	20-create-liloconf
MODULESLIST	CS	psmouse	class/*.var	scripts/FAIBASE/10-misc
MAXPACKAGES	CS	300	install_packages		limit the number of packages install added to apt-get or aptitude
USE_SETUP_STORAGE	CS	1	*.var		when set to 1, FAI will use the new partition tool setup-storage
FAI_BACKUPDIR	CS		*.var	fcopy	directory used bu fcopy for backup files

Variables that are unused since 3.x versions of FAI:

name	type	example value	created by	used by	comments
FAI_REMOTECP		scp	fai.conf	fai-savelog	replaced by FAI_LOGPROTO
FAI_REMOTESH		ssh	fai.conf	fai-savelog, task_chboot()	replaced by FAI_LOGPROTO
diskvar	int	$LOGDIR/disk_var.sh			removed, replace with "$LOGDIR/diskvar"
lpipe	int	/tmp/fai/logfifo			variable removed, try to remove the ugly hack using it
FAI_BOOT		dhcp bootp		make-fai-nfsroot	removed from fai.conf, now using default value, BOOTP is not supported any more
DNSDOMAIN		workgroup.de	task_setup()		removed
installserver		kueppers	fai.conf	only for building FAI_LOCATION	removed
mirrorhost		192.168.0.8	fai.conf	make-fai-nfsroot.conf,$FAI_DEBOOTSTRAP, $FAI_DEBMIRROR, NFSROOT_ETC_HOSTS	removed
fstab	int	fstab		was used for solaris, fstab -> vfstab	removed
VIDEODRIVER	CS	mga	20-hwdetect.source	scripts/DEMO/10-misc	removed with Xorg

useful oneliners

find all files not under a ".svn" directory and replace the string '$diskvar' with '$LOGDIR/diskvar'

Test:

find -name '.svn' -prune -o -type f -exec perl -n -e 's/\$diskvar/\$LOGDIR\/diskvar/g && print' {} \;

find -name '.svn' -prune -o -type f -exec perl -p -e 's/\$diskvar/\$LOGDIR\/diskvar/g' {} \; | less

Really replace: ( same, but "i" added )

find -name '.svn' -prune -o -type f -exec perl -pi -e 's/\$diskvar/\$LOGDIR\/diskvar/g' {} \;

More info:

perldoc perlrun

man find