aboutsummaryrefslogtreecommitdiff
path: root/sh.Linux/init.sh
diff options
context:
space:
mode:
Diffstat (limited to 'sh.Linux/init.sh')
-rwxr-xr-xsh.Linux/init.sh251
1 files changed, 251 insertions, 0 deletions
diff --git a/sh.Linux/init.sh b/sh.Linux/init.sh
new file mode 100755
index 00000000..fc19bddb
--- /dev/null
+++ b/sh.Linux/init.sh
@@ -0,0 +1,251 @@
+#!/bin/sh
+# Copyright 1999-2007 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+# void single_user()
+#
+# Drop to a shell, remount / ro, and then reboot
+#
+single_user() {
+ if [ "${RC_SYS}" = "VPS" ] ; then
+ einfo "Halting"
+ halt -f
+ return
+ fi
+
+ sulogin ${CONSOLE}
+ einfo "Unmounting filesystems"
+ if [ -c /dev/null ] ; then
+ mount -a -o remount,ro 2>/dev/null
+ else
+ mount -a -o remount,ro
+ fi
+ einfo "Rebooting"
+ reboot -f
+}
+
+# This basically mounts $svcdir as a ramdisk, but preserving its content
+# which allows us to run depscan.sh
+# The tricky part is finding something our kernel supports
+# tmpfs and ramfs are easy, so force one or the other
+mount_svcdir() {
+ local fs= fsopts="-o rw,noexec,nodev,nosuid" devdir="none" devtmp="none" x=
+ local svcsize=${svcsize:-1024}
+ local mntcmd=$(fstabinfo --mount-cmd "${RC_LIBDIR}")
+
+ if grep -Eq "[[:space:]]+tmpfs$" /proc/filesystems ; then
+ fs="tmpfs"
+ fsopts="${fsopts},mode=0755,size=${svcsize}k"
+ elif grep -Eq "[[:space:]]+ramfs$" /proc/filesystems ; then
+ fs="ramfs"
+ fsopts="${fsopts},mode=0755,size=${svcsize}k"
+ elif [ -e /dev/ram0 -a -e /dev/ram1 ] \
+ && grep -Eq "[[:space:]]+ext2$" /proc/filesystems ; then
+ devdir="/dev/ram0"
+ devtmp="/dev/ram1"
+ fs="ext2"
+ for x in ${devdir} ${devtmp} ; do
+ try dd if=/dev/zero of="${x}" bs=1k count="${svcsize}"
+ try mkfs -t "${fs}" -i 1024 -vm0 "${x}" "${svcsize}"
+ done
+ else
+ echo
+ eerror "Gentoo Linux requires tmpfs, ramfs or 2 ramdisks + ext2"
+ eerror "compiled into the kernel"
+ echo
+ single_user
+ fi
+
+ # If we have no entry in fstab for $svcdir, provide our own
+ if [ -z "${mntcmd}" ] ; then
+ mntcmd="-t ${fs} ${fsopts} ${devdir} ${RC_SVCDIR}"
+ fi
+
+ local dotmp=false
+ if [ -e "${RC_SVCDIR}"/deptree ] ; then
+ dotmp=true
+ try mount -n -t "${fs}" -o rw "${devtmp}" "${RC_LIBDIR}"/tmp
+ cp -p "${RC_SVCDIR}"/deptree "${RC_SVCDIR}"/nettree \
+ "${RC_LIBDIR}"/tmp 2>/dev/null
+ fi
+ try mount -n ${mntcmd}
+ if ${dotmp} ; then
+ cp -p "${RC_LIBDIR}"/tmp/deptree "${RC_LIBDIR}"/tmp/nettree \
+ "${RC_SVCDIR}" 2>/dev/null
+ try umount -n "${RC_LIBDIR}"/tmp
+ fi
+}
+
+_RC_GET_KV_CACHE=""
+get_KV() {
+ [ -z "${_RC_GET_KV_CACHE}" ] \
+ && _RC_GET_KV_CACHE="$(uname -r)"
+
+ echo "$(KV_to_int "${_RC_GET_KV_CACHE}")"
+
+ return $?
+}
+
+# Try and set a font as early as we can
+ttydev=${CONSOLE:-/dev/tty1}
+if [ -c "${ttydev}" ] ; then
+ ttydev="-C ${ttydev}"
+else
+ [ -c /dev/vc/1 ] && ttydev="-C /dev/vc/1" || ttydev=
+fi
+[ -r "${RC_LIBDIR}"/console/font ] \
+ && /bin/setfont ${ttydev} "${RC_LIBDIR}"/console/font
+[ -r "${RC_LIBDIR}"/console/map ] \
+ && /bin/setfont ${ttydev} -m "${RC_LIBDIR}"/console/map
+[ -r "${RC_LIBDIR}"/console/unimap ] \
+ && /bin/setfont ${ttydev} -u "${RC_LIBDIR}"/console/unimap
+unset ttydev
+
+. /etc/init.d/functions.sh
+. "${RC_LIBDIR}"/sh/init-functions.sh
+. "${RC_LIBDIR}"/sh/rc-functions.sh
+
+# Set the console loglevel to 1 for a cleaner boot
+# the logger should anyhow dump the ring-0 buffer at start to the
+# logs, and that with dmesg can be used to check for problems
+${RC_DMESG_LEVEL+/bin/dmesg -n ${RC_DMESG_LEVEL}}
+
+check_statedir /proc
+
+# By default VServer already has /proc mounted, but OpenVZ does not!
+if [ ! -e /proc/self/stat ] ; then
+ procfs="proc"
+ [ "${RC_UNAME}" = "GNU/kFreeBSD" ] && proc="linprocfs"
+ ebegin "Mounting ${procfs} at /proc"
+ mntcmd="$(fstabinfo --mount-cmd /proc)"
+ try mount -n ${mntcmd:--t ${procfs} -o noexec,nosuid,nodev proc /proc}
+ eend $?
+fi
+
+# Read off the kernel commandline to see if there's any special settings
+# especially check to see if we need to set the CDBOOT environment variable
+# Note: /proc MUST be mounted
+if [ -r /sbin/livecd-functions.sh ] ; then
+ . /sbin/livecd-functions.sh
+ livecd_read_commandline
+fi
+
+[ "$(KV_to_int "$(uname -r)")" -ge "$(KV_to_int "2.6.0")" ]
+K26=$?
+
+if [ "${RC_UNAME}" != "GNU/kFreeBSD" -a "${RC_NAME}" != "VPS" -a "${K26}" = "0" ] ; then
+ if [ -d /sys ] ; then
+ ebegin "Mounting sysfs at /sys"
+ mntcmd="$(fstabinfo --mount-cmd /sys)"
+ try mount -n ${mntcmd:--t sysfs -o noexec,nosuid,nodev sysfs /sys}
+ eend $?
+ else
+ ewarn "No /sys to mount sysfs needed in 2.6 and later kernels!"
+ fi
+fi
+
+check_statedir /dev
+
+devfs_mounted=
+if [ -e /dev/.devfsd ] ; then
+ # make sure devfs is actually mounted and it isnt a bogus file
+ devfs_mounted=$(mountinfo --fstype-regex devfs)
+fi
+
+# Try to figure out how the user wants /dev handled
+# - check $RC_DEVICES from /etc/conf.d/rc
+# - check boot parameters
+# - make sure the required binaries exist
+# - make sure the kernel has support
+if [ "${RC_DEVICES}" = "static" -o "${RC_SYS}" = "VPS" ] ; then
+ ebegin "Using existing device nodes in /dev"
+ eend 0
+elif [ "${RC_UNAME}" = "GNU/kFreeBSD" ] ; then
+ ebegin "Using kFreeBSD devfs in /dev"
+ eend 0
+else
+ fellback_to_devfs="no"
+ case "${RC_DEVICES}" in
+ devfs) devfs="yes"
+ udev="no"
+ ;;
+ udev) devfs="yes"
+ udev="yes"
+ fellback_to_devfs="yes"
+ ;;
+ auto|*) devfs="yes"
+ udev="yes"
+ ;;
+ esac
+
+ # Check udev prerequisites and kernel params
+ if [ "${udev}" = "yes" ] ; then
+ if get_bootparam "noudev" || ! has_addon udev-start || \
+ [ -n "${devfs_mounted}" -o "${K26}" != 0 ] ; then
+ udev="no"
+ fi
+ fi
+
+ # Check devfs prerequisites and kernel params
+ if [ "${devfs}" = "yes" ] ; then
+ if get_bootparam "nodevfs" || ! has_addon devfs-start ||
+ [ "${udev}" = "yes" -o ! -r /proc/filesystems ] ; then
+ devfs="no"
+ elif ! grep -Eq "[[:space:]]+devfs$" /proc/filesystems ; then
+ devfs="no"
+ fi
+ fi
+
+ # Actually start setting up /dev now
+ if [ "${udev}" = "yes" ] ; then
+ start_addon udev
+
+ # With devfs, /dev can be mounted by the kernel ...
+ elif [ "${devfs}" = "yes" ] ; then
+ start_addon devfs
+
+ # Did the user want udev in the config file but for
+ # some reason, udev support didnt work out ?
+ if [ "${fellback_to_devfs}" = "yes" ] ; then
+ ewarn "You wanted udev but support for it was not available!"
+ ewarn "Please review your system after it's booted!"
+ fi
+ fi
+
+ # OK, if we got here, things are probably not right :)
+ if [ "${devfs}" = "no" -a "${udev}" = "no" ] ; then
+ :
+ fi
+fi
+
+# From linux-2.6 we need to mount /dev/pts again ...
+if [ "${RC_UNAME}" != "GNU/kFreeBSD" -a "${K26}" = "0" ] ; then
+ if grep -Eq "[[:space:]]+devpts$" /proc/filesystems && \
+ ! mountinfo /dev/pts > /dev/null ; then
+ if [ ! -d /dev/pts ] && \
+ [ "${devfs}" = "yes" -o "${udev}" = "yes" ] ; then
+ # Make sure we have /dev/pts
+ mkdir -p /dev/pts >/dev/null 2>/dev/null || \
+ ewarn "Could not create /dev/pts!"
+ fi
+
+ if [ -d /dev/pts ] ; then
+ ebegin "Mounting devpts at /dev/pts"
+ mntcmd="$(fstabinfo --mount-cmd /dev/pts)"
+ try mount -n ${mntcmd:--t devpts -o gid=5,mode=0620,noexec,nosuid devpts /dev/pts}
+ eend $?
+ fi
+ fi
+fi
+
+# If booting off CD, we want to update inittab before setting the runlevel
+if [ -f /sbin/livecd-functions.sh -a -n "${CDBOOT}" ] ; then
+ ebegin "Updating inittab"
+ livecd_fix_inittab
+ eend $?
+ /sbin/telinit q &>/dev/null
+fi
+
+. "${RC_LIBDIR}"/sh/init-common-post.sh
+
+# vim: set ts=4 :