
Scripts for generating boot-to-ramdisk images are now available. These can be used for example to boot from PXE or from a USB stick, as the ramdisk are self-contained and do not rely on any block devices after being loaded into RAM. The image generation framework has also been slightly cleaned up in order to better accomodate tarball sets bundling in images. Change-Id: I65a176832bd0d6954b430fa8305f90af0bd606c1
247 lines
5.1 KiB
Plaintext
Executable File
247 lines
5.1 KiB
Plaintext
Executable File
# /etc/rc - System startup script run by init before going multiuser.
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if sysenv bootramdisk >/dev/null
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then
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/bin/sh /etc/rc.ramdisk
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fi
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# Are we booting from CD?
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bootcd="`/bin/sysenv bootcd`"
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exec >/dev/log
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exec 2>/dev/log
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exec </dev/null
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umask 022
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# Same settings as in the default /etc/profile. We do not source this file
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# as the system administrator may decide to change those values for his users.
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RC_TZ=/etc/rc.timezone
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PATH=/usr/local/sbin:/usr/pkg/sbin:/usr/sbin:/sbin:/usr/local/bin:/usr/pkg/bin:/usr/bin:/bin
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# Set TERM to minix if not present.
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TERM="${TERM-minix}"
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export TERM PATH
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# Local variables
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ARCH="`sysenv arch`"
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usage()
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{
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echo >&2 "Usage: $0 [-saf] autoboot|start|stop|down"
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exec intr sh
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}
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up()
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{
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# Function to dynamically start a system service
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opt=""
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prefix=$(expr "$1 " : '\(-\)')
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if [ "$prefix" = "-" ];
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then
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opt=$1
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shift
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fi
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service=$1
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shift
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service $opt up /service/$service "$@"
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}
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edit()
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{
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# Function to dynamically edit system service settings
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opt=""
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prefix=$(expr "$1 " : '\(-\)')
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if [ "$prefix" = "-" ];
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then
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opt=$1
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shift
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fi
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service=$1
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shift
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# Assume binaries are always in /service or /usr/pkg/service
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binlocation=/service/$service
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if [ ! -x $binlocation ]
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then binlocation=/usr/pkg/service/$service
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fi
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# Mostly to find init...
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if [ ! -x $binlocation ]
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then binlocation=/sbin/$service
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fi
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service $opt edit $binlocation -label $service "$@"
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}
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while getopts 'saf' opt
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do
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case $opt in
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s) sflag=t ;; # Single user
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a) aflag=t ;; # Ask for /usr
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f) fflag=-f ;; # Force a full file system check
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*) usage
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esac
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done
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shift `expr $OPTIND - 1`
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case "$#:$1" in
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1:start|1:stop|1:down|1:autoboot)
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action=$1
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;;
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*) usage
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esac
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case $action in
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autoboot|start)
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# If booting from CD, we want some directories to be ramdisks
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if [ ! -z "$bootcd" ]
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then
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. /etc/rc.cd
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fi
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# National keyboard?
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test -f /etc/keymap && loadkeys /etc/keymap
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# options for fsck. default is -r, which prompts the user for repairs.
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optname=fsckopts
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fsckopts=-p
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if sysenv $optname >/dev/null
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then fsckopts="`sysenv $optname`"
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fi
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if [ "`sysenv debug_fkeys`" != 0 ]
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then
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up -n is -period 5HZ
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fi
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# Set timezone.
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export TZ=GMT0
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if [ -f "$RC_TZ" ]
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then
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. "$RC_TZ"
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fi
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# Start real time clock driver & set system time, otherwise default date.
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up readclock.drv
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readclock -q || date 201301010000
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# We are not shutting down.
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if [ -f /etc/nologin ]
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then
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rm -f /etc/nologin
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fi
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# Use MFS binary only from kernel image?
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if [ "`sysenv bin_img`" = 1 ]
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then
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bin_img="-i "
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fi
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# fsck + mount using /etc/fstab.
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fsck -x / $fflag $fsckopts
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mount -a
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if [ -z "`sysenv bootramdisk`" ]
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then
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# Unmount and free now defunct ramdisk
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umount /dev/imgrd > /dev/null || echo "Failed to unmount boot ramdisk"
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ramdisk 0 /dev/imgrd || echo "Failed to free boot ramdisk"
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fi
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# Initialize files.
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>/var/run/utmp # /etc/utmp keeps track of logins
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>/var/run/utmpx # /etc/utmpx keeps track of logins
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# Edit settings for boot system services
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if [ "`sysenv skip_boot_config`" != 1 ]
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then
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edit rs
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edit vm
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edit pm
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edit sched
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edit vfs
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edit ds
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edit tty
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edit memory
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edit mib
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edit pfs
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edit init
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#
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# Keep a copy around to recover the root FS from crashes
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#
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rootline=`cat /etc/mtab | grep "on / "`
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rootfs=fs_`echo "$rootline" | cut -d' ' -f1 | cut -d'/' -f3`
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roottype=`echo "$rootline" | cut -d' ' -f5`
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service -c edit /service/$roottype -label $rootfs
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fi
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if [ "$sflag" ]
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then
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echo "Single user. Press ^D to resume multiuser startup."
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intr sh
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echo
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fi
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echo "Multiuser startup in progress ..."
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case "`printroot -r`":$bootcd in
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/dev/ram:)
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# Remove boot-only things to make space,
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# unless booting from CD, in which case we need them.
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rm -rf /boot
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# put the compiler on ram
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cp /usr/lib/em* /usr/lib/cpp* /lib
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esac
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echo -n "Starting hotplugging infrastructure... "
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rm -f /var/run/devmand.pid
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devmand -d /etc/devmand -d /usr/pkg/etc/devmand &
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echo "done."
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# Things should be alright now.
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;;
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down|stop)
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sync
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if [ -f /var/run/devmand.pid ]
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then
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kill -INT `cat /var/run/devmand.pid`
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# without this delay the following will
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# be printed in the console
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# RS: devman not running?
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sleep 1
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fi
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#
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# usbd needs to be stopped exactly
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# at this stage(before stopping devman
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# and after stopping the services
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# stated by devmand)
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if [ -x /usr/pkg/etc/rc.d/usbd ]
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then
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/usr/pkg/etc/rc.d/usbd stop
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fi
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if [ -x /service/usbd ]
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then
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service down usbd
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fi
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# Tell RS server we're going down.
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service shutdown
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;;
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esac
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# Further initialization.
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test -f /usr/etc/rc && sh /usr/etc/rc $action
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test -f /usr/local/etc/rc && sh /usr/local/etc/rc $action
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# Any messages?
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if [ "$action" = start -o "$action" = autoboot ]
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then if [ -f /etc/issue ]
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then cat /etc/issue
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fi
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fi
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exit 0
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