multistrap/emrootfslib

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# emrootfslib : shell library to support root filesystems for Emdebian.
#
# This file is POSIX shell, compatible with debootstrap.
# Do not include or reference pbuilder functions or bash code here.
#
# Copyright (C) 2006-2008 Neil Williams <codehelp@debian.org>
#
# This package is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# This shell library requires perl !
# Intended solely for use on the build machine. Do not use these functions
# in second_stage_install !
OURVERSION=`perl -e 'use Emdebian::Tools; print &tools_version();'`
get_default_arch ()
{
ARCH=`perl -e 'use Debian::DpkgCross; \
&read_config(); \
my $arch = &get_architecture(); \
print (qq/None.\n/) if (!$arch); \
print $arch;';`
}
get_work_dir ()
{
WORKDIR=`perl -e 'use Cwd; use Emdebian::Tools; use Config::Auto; use Debian::DpkgCross; \
&read_config; \
my $w = &get_workdir; \
$w = cwd if (! -d $w); \
$w =~ s/\/$//; \
print $w;';`
}
get_work_dir
get_default_arch
WORKPLACE="${WORKDIR}/pbuilder"
BASETGZ="${WORKDIR}/emdebian.tgz"
#pbuilder base values
DEBIAN_BUILDARCH=$ARCH
# cross-building chroot is same arch as host.
BUILDRESULT="$WORKPLACE/result/"
# tidy up // to /
BUILDRESULT=`echo $BUILDRESULT | tr -s \/`
APTCACHE="$WORKPLACE/aptcache/"
# tidy up // to /
APTCACHE=`echo $APTCACHE | tr -s \/`
AUTO_DEBSIGN=yes
APTCACHEHARDLINK="no"
BUILDPLACE="$WORKPLACE/build"
# the default is to add a PID in the buildplace.
BASEBUILDPLACE="$BUILDPLACE"
if [ "${PRESERVE_BUILDPLACE}" != "yes" ]; then
BUILDPLACE="$BUILDPLACE/$$"
fi
checkarch ()
{
ARCH=$ARCH perl -e 'use Debian::DpkgCross; $arch = $ENV{ARCH}; $arch=~s/ //g; \
die "Unsupported architecture: $arch Use --arch\n" if (not defined (&check_arch($arch)));'
}
create_emdebiantgz() {
(
if ! cd "$BUILDPLACE"; then
echo "Error: unexpected error in chdir to $BUILDPLACE" >&2
exit 1;
fi
while test -f "${BASETGZ}.tmp"; do
echo " -> Someone else has lock over ${BASETGZ}.tmp, waiting"
sleep 10s
done
echo " -> creating base tarball [${BASETGZ}]"
if ! sudo tar cfz "${BASETGZ}.tmp" * ; then
echo " -> failed building base tarball"
rm -f "${BASETGZ}.tmp"
exit 1;
fi
mv "${BASETGZ}.tmp" "${BASETGZ}"
)
}
check_dirs()
{
if [ ! -d $BUILDPLACE ] ; then
mkdir -p $BUILDPLACE
fi
if [ ! -d $BUILDRESULT ] ; then
mkdir -p $BUILDRESULT
fi
if [ ! -d $APTCACHE ] ; then
mkdir -p $APTCACHE
fi
}
disable_apt_recommends () {
if [ -d "$BUILDPLACE/etc/apt/apt.conf.d/" ]; then
if [ ! -f "$BUILDPLACE/etc/apt/apt.conf.d/10disablerecommends" ]; then
echo " -> disabling Apt::Install-Recommends"
cat > $BUILDPLACE/etc/apt/apt.conf.d/10disablerecommends << 'EOF'
APT
{
Install-Recommends "false"
};
EOF
fi
fi
}
disable_apt_pdiffs () {
if [ -d "$BUILDPLACE/etc/apt/apt.conf.d/" ]; then
if [ ! -f "$BUILDPLACE/etc/apt/apt.conf.d/12disablepdiffs" ]; then
echo " -> disabling Apt::Acquire::PDiffs"
cat > $BUILDPLACE/etc/apt/apt.conf.d/12disablepdiffs << 'EOF'
APT
{
Acquire::PDiffs "false";
};
EOF
fi
fi
}
apt_autoremove_always () {
if [ -d "$BUILDPLACE/etc/apt/apt.conf.d/" ]; then
if [ ! -f "$BUILDPLACE/etc/apt/apt.conf.d/11always_autoremove" ]; then
echo " -> enabling Apt::AutomaticRemove"
cat > $BUILDPLACE/etc/apt/apt.conf.d/11always_autoremove << 'EOF'
APT
{
AutomaticRemove "true"
};
EOF
fi
fi
}
unpack_debootstrap () {
info INSTCORE "Starting unpacking in $BUILDPLACE"
for deb in `ls $BUILDPLACE/var/cache/apt/archives/*.deb`; do
ver=`dpkg -f $deb Version`
pkg=`dpkg -f $deb Package`
info INSTCORE "Unpacking $pkg ($ver) ...."
dpkg -x $deb $BUILDPLACE/
# get the package listing with reduced parsing complexity
mkdir $BUILDPLACE/listing
ar -p $deb data.tar.gz > $BUILDPLACE/listing/data.tar.gz
tar -tzf $BUILDPLACE/listing/data.tar.gz | sed -e 's/^\.//' | sed -e 's/^\/$/\/\./' | sed -e 's/\/$//' > $BUILDPLACE/var/lib/dpkg/info/${pkg}.list
rm -rf $BUILDPLACE/listing
rm -rf $BUILDPLACE/tmp/*
dpkg -e $deb $BUILDPLACE/tmp/
for maint in `ls $BUILDPLACE/tmp/`; do
mv $BUILDPLACE/tmp/$maint $BUILDPLACE/var/lib/dpkg/info/$pkg.$maint
if [ $maint = "control" ]; then
grep -v "^$" $BUILDPLACE/var/lib/dpkg/info/$pkg.$maint >> $BUILDPLACE/var/lib/dpkg/available
grep -v "^$" $BUILDPLACE/var/lib/dpkg/info/$pkg.$maint >> $BUILDPLACE/var/lib/dpkg/status
echo "" >> $BUILDPLACE/var/lib/dpkg/available
echo "Status: install ok unpacked" >> $BUILDPLACE/var/lib/dpkg/status
rm $BUILDPLACE/var/lib/dpkg/info/$pkg.$maint
fi
# need a dpkg filter to make this stick
if [ $maint = "symbols" ]; then
rm $BUILDPLACE/var/lib/dpkg/info/$pkg.symbols
fi
done
if [ -f $BUILDPLACE/var/lib/dpkg/info/$pkg.conffiles ]; then
echo "Conffiles:" >> $BUILDPLACE/var/lib/dpkg/status
info INSTCORE "Processing $pkg.conffiles"
for line in `cat $BUILDPLACE/var/lib/dpkg/info/$pkg.conffiles`; do
md5=`md5sum $BUILDPLACE/$line | cut -d" " -f1`
echo " $line $md5" >> $BUILDPLACE/var/lib/dpkg/status
done
fi
echo "" >> $BUILDPLACE/var/lib/dpkg/status
done
if [ ! -e "$BUILDPLACE/etc/localtime" ]; then
ln -sf /usr/share/zoneinfo/UTC "$BUILDPLACE/etc/localtime"
fi
info INSTCORE "Removing archives..."
rm -f $BUILDPLACE/var/cache/apt/archives/*.deb
# (skip stages in emsecondstage)
touch $BUILDPLACE/debootstrap/unpacked
}
busybox_symlinks ()
{
# busybox symlinks are best managed in postinst so that dpkg
# does not complain when they are replaced by Debian packages.
# this allows more applets to be supported by default.
if [ -f $BUILDPLACE/usr/share/busybox/busybox.links ]; then
cd $BUILDPLACE
# setup busybox
cp usr/share/busybox/busybox.links .
cp usr/share/busybox/install.sh .
# link in the rest of its applets from OUTSIDE the chroot
info INSTCORE "Symlinking the busybox applets..."
sh ./install.sh $BUILDPLACE/ --symlinks
rm $BUILDPLACE/install.sh
rm $BUILDPLACE/busybox.links
else
info INSTCORE "busybox configuration not required"
fi
}
disable_invokercd ()
{
# invoke-rc.d is usually shell but is being looked at in Debian.
if [ ! -f $BUILDPLACE/usr/sbin/invoke-rc.d ]; then
echo '#!/bin/sh' > $BUILDPLACE/usr/sbin/invoke-rc.d
echo 'exec /etc/init.d/$1 $2' > $BUILDPLACE/usr/sbin/invoke-rc.d
echo '' >> $BUILDPLACE/usr/sbin/invoke-rc.d
chmod 755 $BUILDPLACE/usr/sbin/invoke-rc.d
fi
}
disable_updatercd ()
{
# a better fix for /usr/sbin/update-rc.d is available via sysv-rc
if [ ! -f $BUILDPLACE/usr/sbin/update-rc.d ]; then
echo "#!/bin/sh" > $BUILDPLACE/usr/sbin/update-rc.d
echo "" >> $BUILDPLACE/usr/sbin/update-rc.d
chmod 755 $BUILDPLACE/usr/sbin/update-rc.d
fi
RC=`head $BUILDPLACE/usr/sbin/update-rc.d | grep /usr/bin/perl || true`
if [ "$RC" != "" ]; then
info INSTCORE "Replacing perl update-rc.d"
echo "#!/bin/sh" > $BUILDPLACE/usr/sbin/update-rc.d
echo "" >> $BUILDPLACE/usr/sbin/update-rc.d
chmod 755 $BUILDPLACE/usr/sbin/update-rc.d
fi
}
extra_etc_rcd ()
{
if [ ! -d $BUILDPLACE/etc/rcS.d ]; then
mkdir $BUILDPLACE/etc/rcS.d
fi
if [ ! -d $BUILDPLACE/etc/rc0.d ]; then
mkdir $BUILDPLACE/etc/rc0.d
fi
if [ ! -d $BUILDPLACE/etc/rc1.d ]; then
mkdir $BUILDPLACE/etc/rc1.d
fi
if [ ! -d $BUILDPLACE/etc/rc6.d ]; then
mkdir $BUILDPLACE/etc/rc6.d
fi
}
provide_var_lib_x11 ()
{
if [ ! -d $BUILDPLACE/var/lib/x11 ]; then
mkdir -p $BUILDPLACE/var/lib/x11
fi
}
basic_group_setup () {
if [ ! -f $BUILDPLACE/etc/group ]; then
echo \
"root:x:0:
daemon:x:1:
bin:x:2:
sys:x:3:
adm:x:4:
tty:x:5:
disk:x:6:
lp:x:7:
mail:x:8:
news:x:9:
uucp:x:10:
man:x:12:
proxy:x:13:
kmem:x:15:
audio:x:29:
utmp:x:43:
video:x:44:
" > $BUILDPLACE/etc/group
fi
}
basic_passwd_setup () {
if [ ! -f $BUILDPLACE/etc/passwd ]; then
echo \
"root:x:0:0:root:/root:/bin/sh
daemon:x:1:1:daemon:/usr/sbin:/bin/sh
bin:x:2:2:bin:/bin:/bin/sh
sys:x:3:3:sys:/dev:/bin/sh
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/bin/sh
man:x:6:12:man:/var/cache/man:/bin/sh
lp:x:7:7:lp:/var/spool/lpd:/bin/sh
mail:x:8:8:mail:/var/mail:/bin/sh
news:x:9:9:news:/var/spool/news:/bin/sh
uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
proxy:x:13:13:proxy:/bin:/bin/sh
www-data:x:33:33:www-data:/var/www:/bin/sh
backup:x:34:34:backup:/var/backups:/bin/sh
list:x:38:38:Mailing List Manager:/var/list:/bin/sh
irc:x:39:39:ircd:/var/run/ircd:/bin/sh
gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
" > $BUILDPLACE/etc/passwd
fi
}
# need /etc/shadow too
basic_shadow_setup () {
if [ ! -f $BUILDPLACE/etc/shadow ]; then
echo \
"root:$1$Vu4M34LT$0L2BfH9nXbSG1zQWxUH8M1:0::::::
daemon:*:13896:0:99999:7:::
bin:*:0:0:99999:7:::
sys:*:0:0:99999:7:::
sync:*:0:0:99999:7:::
games:*:0:0:99999:7:::
man:*:0:0:99999:7:::
lp:*:0:0:99999:7:::
mail:*:0:0:99999:7:::
news:*:0:0:99999:7:::
uucp:*:0:0:99999:7:::
proxy:*:0:0:99999:7:::
www-data:*:0:0:99999:7:::
backup:*:0:0:99999:7:::
list:*:0:0:99999:7:::
irc:*:0:0:99999:7:::
gnats:*:0:0:99999:7:::
nobody:*:0:0:99999:7:::" > $BUILDPLACE/etc/shadow
fi
}
provide_empty_install_info () {
if [ ! -f $BUILDPLACE/usr/sbin/install-info ]; then
echo \
'#!/bin/sh
exec /etc/init.d/$1 $2
' > $BUILDPLACE/usr/sbin/install-info
chmod 755 $BUILDPLACE/usr/sbin/install-info
fi
}
set_approx_time () {
if [ -d $BUILDPLACE/bin ]; then
DATE=`date`
ZERO=`date -d@0`
# if we have a usable date, store it.
if [ "$DATE" != "$ZERO" ]; then
APPROX=`stat -c%Y $BUILDPLACE/bin/`
STR=`date -d@$APPROX +%m%d%H%M%Y`
info INSTCORE "Storing approximate time '$STR' in './datestring'"
echo "$STR" > $BUILDPLACE/datestring
fi
fi
}
basic_etc_fstab () {
if [ ! -f "$BUILDPLACE/etc/fstab" ]; then
cat > $BUILDPLACE/etc/fstab << 'EOF'
# /etc/fstab: static file system information.
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
sysfs /sys sysfs defaults 0 0
devpts /dev/pts devpts mode=0620,gid=5 0 0
usbdevfs /proc/bus/usb usbdevfs noauto 0 0
EOF
chown 0.0 "$BUILDPLACE/etc/fstab";
chmod 0644 "$BUILDPLACE/etc/fstab"
fi
}
make_dpkg_dirs () {
mkdir -p "$BUILDPLACE/var/lib/dpkg"
: >"$BUILDPLACE/var/lib/dpkg/status"
echo >"$BUILDPLACE/var/lib/dpkg/available"
echo -n >"$BUILDPLACE/var/lib/dpkg/diversions"
}
x_feign_install () {
local pkg="$1"
local deb="$(debfor $pkg)"
local ver="$(
ar -p "$BUILDPLACE/$deb" control.tar.gz | zcat |
tar -O -xf - control ./control 2>/dev/null |
sed -ne 's/^Version: *//Ip' | head -n 1
)"
mkdir -p "$BUILDPLACE/var/lib/dpkg/info"
echo \
"Package: $pkg
Version: $ver
Status: install ok installed
" >> "$BUILDPLACE/var/lib/dpkg/status"
touch "$BUILDPLACE/var/lib/dpkg/info/${pkg}.list"
}
prepare_proc () {
if [ ! -d $BUILDPLACE/proc ]; then
mkdir -p $BUILDPLACE/proc
fi
if [ ! -d $BUILDPLACE/sys ]; then
mkdir -p $BUILDPLACE/sys
fi
}
prepare_var () {
if [ ! -d $BUILDPLACE/var/log ]; then
mkdir -p $BUILDPLACE/var/log
fi
if [ ! -d $BUILDPLACE/var/spool ]; then
mkdir -p $BUILDPLACE/var/spool
fi
}
busybox_inittab () {
if [ ! -e "$BUILDPLACE/etc/inittab" ]; then
info INSTCORE "Adding default busybox inittab"
cat > $BUILDPLACE/etc/inittab << 'EOF'
# /etc/inittab
#
# Copyright (C) 2001 Erik Andersen <andersen@codepoet.org>
#
# Note: BusyBox init doesn't support runlevels.
# Startup the system
null::sysinit:/bin/mount -o remount,rw /
null::sysinit:/bin/mount -t proc proc /proc
null::sysinit:/bin/mount -t sysfs sysfs /sys
null::sysinit:/bin/mount -t devpts devpts /dev/pts
null::sysinit:/bin/mount -a
null::sysinit:/bin/hostname -F /etc/hostname
null::sysinit:/sbin/ifconfig lo 127.0.0.1 up
null::sysinit:/sbin/route add -net 127.0.0.0 netmask 255.0.0.0 lo
# now run any rc scripts and then login
::sysinit:/etc/init.d/rcS
# Set up a couple of getty's
tty1::respawn:/sbin/getty 38400 tty1
tty2::respawn:/sbin/getty 38400 tty2
# Put a getty on the serial port
#ttyS0::respawn:/sbin/getty -L ttyS0 115200 vt100
ttyS2::respawn:/sbin/getty -L ttyS2 115200 vt100
# Logging junk
null::sysinit:/bin/touch /var/log/messages
null::respawn:/sbin/syslogd -n -m 0
null::respawn:/sbin/klogd -n
tty3::respawn:/usr/bin/tail -f /var/log/messages
# Stuff to do for the 3-finger salute
::ctrlaltdel:/sbin/reboot
# Stuff to do before rebooting
null::shutdown:/usr/bin/killall klogd
null::shutdown:/usr/bin/killall syslogd
null::shutdown:/bin/umount -a -r
null::shutdown:/sbin/swapoff -a
EOF
fi
}
busybox_rcS () {
if [ ! -d "$BUILDPLACE/etc/default" ]; then
mkdir -p $BUILDPLACE/etc/default
fi
if [ ! -d "$BUILDPLACE/etc/rc.d" ]; then
mkdir -p $BUILDPLACE/etc/rc.d
fi
if [ ! -f "$BUILDPLACE/etc/default/rcS" ]; then
echo "#!/bin/sh" > $BUILDPLACE/etc/default/rcS
echo >> $BUILDPLACE/etc/default/rcS
chown 0.0 "$BUILDPLACE/etc/default/rcS"
chmod 644 "$BUILDPLACE/etc/default/rcS"
fi
# derived from the buildroot version.
if [ ! -e "$BUILDPLACE/etc/init.d/rcS" ]; then
info INSTCORE "Adding default busybox rcS"
cat > $BUILDPLACE/etc/init.d/rcS << 'EOF'
#!/bin/sh
set -e
# Start all init scripts in /etc/rc.d/
#
if [ ! -z "$SPAWNED" ]; then
/bin/login
fi
SPAWNED="$SPAWNED ."
export SPAWNED=\$SPAWNED
for i in /etc/rc.d/S??* ;do
# Ignore dangling symlinks (if any).
[ ! -f "$i" ] && continue
case "$i" in
*.sh)
# Source shell script for speed.
(
trap - INT QUIT TSTP
set start
. $i
)
;;
*)
# No sh extension, so fork subprocess.
$i start
;;
esac
done
EOF
chown 0.0 "$BUILDPLACE/etc/init.d/rcS"
chmod 0755 "$BUILDPLACE/etc/init.d/rcS"
fi
}
# call repeatedly to create init symlinks.
# arg1 is the file in $BUILDPLACE/etc/init.d/
# arg2 is the number for the link in the init sequence
# where 'foo 20' runs after 'bar 10' etc.
symlink_rcS () {
local file="$1"
local num="$2"
linkname="S$num$file"
if [ ! -d "$BUILDPLACE/etc/rc.d/" ]; then
mkdir $BUILDPLACE/etc/rc.d
fi
if [ -f $BUILDPLACE/etc/init.d/$file ]; then
ln -sf ../init.d/$file $BUILDPLACE/etc/rc.d/$linkname
fi
}
symlink_rcK () {
local file="$1"
local num="$2"
linkname="K$num$file"
if [ ! -d "$BUILDPLACE/etc/rc.d/" ]; then
mkdir $BUILDPLACE/etc/rc.d
fi
if [ -f $BUILDPLACE/etc/init.d/$file ]; then
ln -sf ../init.d/$file $BUILDPLACE/etc/rc.d/$linkname
fi
}
basic_etc_profile () {
if [ ! -e "$BUILDPLACE/etc/profile" ]; then
info INSTCORE "Adding a basic /etc/profile file"
cat > $BUILDPLACE/etc/profile << 'EOF'
if [ "`id -u`" -eq 0 ]; then
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games/"
else
PATH="/usr/local/bin:/usr/bin:/bin:/usr/games"
fi
if [ "$PS1" ]; then
if [ "`id -u`" -eq 0 ]; then
PS1='# '
else
PS1='$ '
fi
fi
export PATH
export DISPLAY=:0
umask 022
EOF
fi
}
set_cdebconf_default () {
info INSTCORE "Setting cdebconf as default."
echo "export DEBCONF_USE_CDEBCONF=true" >> $BUILDPLACE/etc/profile
}
set_tslib_pointercal () {
info INSTCORE "Setting location of tslib calibration file."
echo "export TSLIB_CALIBFILE=/etc/pointercal" >> $BUILDPLACE/etc/profile
}
# this function is coded to match the sample_xorg_conf
# some devices might use /dev/input/event1 or event2
set_tslib_tsdevice () {
info INSTCORE "Setting location of tslib touchscreen device."
echo "export TSLIB_TSDEVICE=/dev/input/event0" >> $BUILDPLACE/etc/profile
}
sample_xorg_conf () {
if [ ! -e "$BUILDPLACE/etc/X11/xorg.conf" ]; then
info INSTCORE "Adding sample xorg.conf"
cat > $BUILDPLACE/etc/X11/xorg.conf << 'EOF'
# You probably want to change at least some of these
# lines and provide it via machine:variant customisations.
# This one comes from balloon3-config.
Section "Files"
FontPath "/usr/share/fonts/truetype/ttf-bitstream-vera/"
EndSection
Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
EndSection
# /dev/input/event0 is kernel-module specific.
# You may need to change this.
Section "InputDevice"
Identifier "Touchscreen"
Driver "tslib"
Option "ScreenNumber" "0"
Option "Width" "0"
Option "Height" "0"
Option "Rotate" "NONE"
Option "TslibDevice" "/dev/input/event0"
EndSection
Section "Device"
Identifier "Generic Video Card"
Driver "fbdev"
Option "UseFBDev" "true"
EndSection
Section "Monitor"
Identifier "Configured Monitor"
EndSection
Section "ServerLayout"
Identifier "Default Layout"
Screen "Default Screen"
InputDevice "Touchscreen"
EndSection
Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
EndSection
EOF
fi
}
shell_update_rcd () {
if [ ! -e "$BUILDPLACE/usr/sbin/update-rc.d" ]; then
info INSTCORE "Adding a /usr/sbin/update-rc.d shell script"
cp /usr/share/emdebian-tools/update-rc.d $BUILDPLACE/usr/sbin/
chmod 0755 $BUILDPLACE/usr/sbin/update-rc.d
fi
}