milis/rootfs/sbin/mkinitramfs

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2016-02-24 01:27:23 +01:00
#!/bin/bash
# This file based in part on the mkinitrafms script for the LFS LiveCD
# written by Alexander E. Patrakov and Jeremy Huntwork.
# adapted by sham
copy()
{
local file
if [ "$2" == "lib" ]; then
file=$(PATH=/lib:/usr/lib type -p $1)
else
file=$(type -p $1)
fi
if [ -n $file ] ; then
cp $file $WDIR/$2
else
echo "Missing required file: $1 for directory $2"
rm -rf $WDIR
exit 1
fi
}
if [ -z $1 ] ; then
INITRAMFS_FILE=initrd
else
KERNEL_VERSION=$1
INITRAMFS_FILE=initrd-$KERNEL_VERSION
sbinfiles="udevd udevadm ip"
fi
if [ -n "$KERNEL_VERSION" ] && [ ! -d "/lib/modules/$1" ] ; then
echo "No modules directory named $1"
exit 1
fi
printf "Creating $INITRAMFS_FILE... "
binfiles="sh cat clear cut date grep cp dd hostname killall ls mkdir mknod more mount mountpoint chmod"
binfiles="$binfiles umount stty sed sleep ln rm uname"
sbinfiles="$sbinfiles blkid switch_root"
#Optional files and locations
if [ -x /sbin/mdadm ] ; then sbinfiles="$sbinfiles mdadm"; fi
unsorted=$(mktemp /tmp/unsorted.XXXXXXXXXX)
DATADIR=/lib/services
INITIN=init.in
# Create a temporrary working directory
WDIR=$(mktemp -d /tmp/initrd-work.XXXXXXXXXX)
# Create base directory structure
# mkdir -p $WDIR/{bin,dev,lib/firmware,run,sbin,sys,proc}
mkdir -p $WDIR/{bin,dev,lib/{lsb,firmware},run,sbin,sys,proc,tmp,etc,usr/share}
mkdir -p $WDIR/etc/{sysconfig,modprobe.d,udev/{rules.d,hwdb.d}}
touch $WDIR/etc/modprobe.d/modprobe.conf
ln -s lib $WDIR/lib64
# Create necessary device nodes
# mknod -m 640 $WDIR/dev/console c 5 1
# mknod -m 664 $WDIR/dev/null c 1 3
# Install the init-functions
if [ -f /lib/lsb/init-functions ]; then
cp /lib/lsb/init-functions $WDIR/lib/lsb/init-functions
fi
if [ -n "$KERNEL_VERSION" ] ; then
cp /etc/group $WDIR/etc
fi
cat > $WDIR/etc/fstab << "EOF"
proc /proc proc nosuid,noexec,nodev 0 0
sysfs /sys sysfs nosuid,noexec,nodev 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
tmpfs /run tmpfs defaults 0 0
devtmpfs /dev devtmpfs mode=0755,nosuid 0 0
EOF
# echo and false are a bit wird
cp /bin/echo $WDIR/bin/echo
cp /bin/false $WDIR/bin/false
# terminal stuff
mkdir -p $WDIR/lib/ncurses/terminfo/l
cp /lib/ncurses/terminfo/l/linux \
$WDIR/lib/ncurses/terminfo/l
ln -s ../../lib/ncurses/terminfo $WDIR/usr/share/terminfo
# Install the udev configuration files
if [ -f /etc/udev/udev.conf ]; then
cp /etc/udev/udev.conf $WDIR/etc/udev/udev.conf
fi
for file in $(find /etc/udev/rules.d/ -type f) ; do
cp $file $WDIR/etc/udev/rules.d
done
for file in $(find /etc/udev/hwdb.d/ -type f) ; do
cp $file $WDIR/etc/udev/hwdb.d
done
cat > $WDIR/etc/udev/rules.d/55-lfs.rules << "EOF"
# /etc/udev/rules.d/55-lfs.rules: Rule definitions for LFS.
# Core kernel devices
# This causes the system clock to be set as soon as /dev/rtc becomes available.
SUBSYSTEM=="rtc", ACTION=="add", MODE="0644", RUN="do_start_clock"
KERNEL=="rtc", ACTION=="add", MODE="0644", RUN="do_start_clock"
# Comms devices
KERNEL=="ippp[0-9]*", GROUP="dialout"
KERNEL=="isdn[0-9]*", GROUP="dialout"
KERNEL=="isdnctrl[0-9]*", GROUP="dialout"
KERNEL=="dcbri[0-9]*", GROUP="dialout"
EOF
# Hostname
if [ -f /etc/hostname ] ; then
cp /etc/hostname $WDIR/etc/hostname
else
echo "milis" > $WDIR/etc/hostname
fi
# Clock setting
if [ -f /etc/sysconfig/clock ] ; then
cp /etc/sysconfig/clock $WDIR/etc/sysconfig
fi
# Install any firmware present
# cp -a /lib/firmware $WDIR/lib
# Copy the RAID configureation file if present
# if [ -f /etc/mdadm.conf ] ; then
# cp /etc/mdadm.conf $WDIR/etc
# fi
# Install the init file
install -m0755 $DATADIR/$INITIN $WDIR/init
binfiles="$binfiles groups"
if [ -x /bin/kmod ] ; then
binfiles="$binfiles kmod"
else
binfiles="$binfiles lsmod"
sbinfiles="$sbinfiles insmod"
fi
# Install basic binaries
for f in $binfiles ; do
ldd /bin/$f | sed "s/\t//" | cut -d " " -f1 >> $unsorted
copy $f bin
done
# Add lvm if present
if [ -x /sbin/lvm ] ; then sbinfiles="$sbinfiles lvm dmsetup"; fi
for f in $sbinfiles ; do
ldd /sbin/$f | sed "s/\t//" | cut -d " " -f1 >> $unsorted
copy $f sbin
done
# Add udevd libraries if not in /sbin
if [ -x /lib/udev/udevd ] ; then
ldd /lib/udev/udevd | sed "s/\t//" | cut -d " " -f1 >> $unsorted
fi
if [ -x /bin/kmod ] ; then
ln -s kmod $WDIR/bin/lsmod
ln -s ../bin/kmod $WDIR/sbin/insmod
ln -s ../bin/kmod $WDIR/sbin/modprobe
ln -s ../bin/kmod $WDIR/sbin/depmod
fi
# Add lvm symlinks if appropriate
# Also copy the lvm.conf file
if [ -x /sbin/lvm ] ; then
ln -s lvm $WDIR/sbin/lvchange
ln -s lvm $WDIR/sbin/lvrename
ln -s lvm $WDIR/sbin/lvextend
ln -s lvm $WDIR/sbin/lvcreate
ln -s lvm $WDIR/sbin/lvdisplay
ln -s lvm $WDIR/sbin/lvscan
ln -s lvm $WDIR/sbin/pvchange
ln -s lvm $WDIR/sbin/pvck
ln -s lvm $WDIR/sbin/pvcreate
ln -s lvm $WDIR/sbin/pvdisplay
ln -s lvm $WDIR/sbin/pvscan
ln -s lvm $WDIR/sbin/vgchange
ln -s lvm $WDIR/sbin/vgcreate
ln -s lvm $WDIR/sbin/vgscan
ln -s lvm $WDIR/sbin/vgrename
ln -s lvm $WDIR/sbin/vgck
# Conf file(s)
cp -a /etc/lvm $WDIR/etc
fi
# Install libraries
sort $unsorted | uniq | while read library ; do
if [ "$library" == "linux-vdso.so.1" ] ||
[ "$library" == "linux-gate.so.1" ]; then
continue
fi
copy $library lib
done
cp -a /lib/udev $WDIR/lib
# The Hardware clock setting maybe could be faster done
cat > $WDIR/lib/udev/do_start_clock << "EOF"
#!/bin/sh -e
. /lib/lsb/init-functions
do_start_clock
EOF
chmod 755 $WDIR/lib/udev/do_start_clock
# Install the kernel modules if requested
if [ -n "$KERNEL_VERSION" ]; then
find \
/lib/modules/$KERNEL_VERSION/kernel/{arch,crypto,fs,kernel,lib,mm,security} \
/lib/modules/$KERNEL_VERSION/kernel/drivers/{ata,base,block,cdrom,hid,md,firewire} \
/lib/modules/$KERNEL_VERSION/kernel/drivers/{scsi,message,pcmcia,virtio,net} \
/lib/modules/$KERNEL_VERSION/kernel/drivers/usb/{core,common,host,storage} \
-type f 2> /dev/null | cpio --make-directories -p --quiet $WDIR
cp /lib/modules/$KERNEL_VERSION/modules.{builtin,order} \
$WDIR/lib/modules/$KERNEL_VERSION
depmod -b $WDIR $KERNEL_VERSION
cp -a /lib/firmware/rtlwifi \
$WDIR/lib/firmware > /dev/null 2>&1
cp -a /lib/firmware/ath6k \
$WDIR/lib/firmware > /dev/null 2>&1
cp -a /lib/firmware/RTL8192E \
$WDIR/lib/firmware > /dev/null 2>&1
cp -a /lib/firmware/bnx2x-* \
$WDIR/lib/firmware > /dev/null 2>&1
cp -a /lib/firmware/brcm \
$WDIR/lib/firmware > /dev/null 2>&1
cp -a /lib/firmware/iwlwifi-* \
$WDIR/lib/firmware > /dev/null 2>&1
cp -a /lib/firmware/radeon \
$WDIR/lib/firmware > /dev/null 2>&1
cp -a /lib/firmware/ar3k \
$WDIR/lib/firmware > /dev/null 2>&1
fi
rm -f /boot/$INITRAMFS_FILE
# cp -a /boot $WDIR
# rm -v $WDIR/boot/kernel*
( cd $WDIR ; find . | cpio -o -H newc --quiet | gzip -9 ) > $INITRAMFS_FILE
# Remove the temporary direc
rm -rf $WDIR $unsorted
mv $INITRAMFS_FILE /boot/$INITRAMFS_FILE
# in case of iso
# mv $INITRAMFS_FILE /ISO/isolinux/$INITRAMFS_FILE
printf "done.\n"