You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
87 lines
2.1 KiB
87 lines
2.1 KiB
#!/bin/sh
|
|
|
|
kernel=`uname -r`
|
|
tmpdir=`mktemp -d`
|
|
empty=0
|
|
|
|
if [ "$1" = "empty" ]; then
|
|
empty=1; shift
|
|
fi
|
|
|
|
if [ -n "$1" ]; then
|
|
if [ -d "/lib/modules/$1" ]; then
|
|
kernel="$1"
|
|
else
|
|
echo "Can't open /lib/modules/$1: No such directory."
|
|
echo "Usage: $0 [ kernel-version ]"
|
|
exit 1
|
|
fi
|
|
fi
|
|
|
|
cat << 'EOT' > $tmpdir/linuxrc.c
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#include <sys/wait.h>
|
|
#include <stdio.h>
|
|
|
|
int main()
|
|
{
|
|
EOT
|
|
|
|
echo "Creating /boot/initrd-${kernel}.img ..."
|
|
if [ "$empty" = 0 ]; then
|
|
grep '^modprobe ' /etc/conf/kernel |
|
|
grep -v 'no-initrd' | sed 's,[ ]#.*,,' |
|
|
while read a b; do $a -n -v $b 2> /dev/null; done |
|
|
while read a b c; do
|
|
# ouch - this is pretty ugly....
|
|
b="${b//`uname -r`/$kernel}"
|
|
if [ ! -f $tmpdir/${b##*/} ]; then
|
|
echo "Adding $b."; cp $b $tmpdir
|
|
x="$( eval "echo ${b##*/} $c" )"
|
|
cat << EOT >> $tmpdir/linuxrc.c
|
|
/* $x */
|
|
if ( fork() ) wait(NULL);
|
|
else {
|
|
printf("initrd: loading %s.\n", "$x"); fflush(stdout);
|
|
execl("/insmod.static", "/insmod.static", "${x// /", "}", NULL);
|
|
_exit(1);
|
|
}
|
|
EOT
|
|
fi
|
|
done
|
|
fi
|
|
echo -e '\tprintf("initrd: going to re-mount root now.\\n");' >> $tmpdir/linuxrc.c
|
|
echo -e '\treturn 0;\n}' >> $tmpdir/linuxrc.c
|
|
gcc -s -static -Wall -Os -o $tmpdir/linuxrc $tmpdir/linuxrc.c
|
|
cp /sbin/insmod.static* $tmpdir/
|
|
if [ -f $tmpdir/insmod.static.old ]; then
|
|
ln -s insmod.static.old $tmpdir/insmod.old
|
|
fi
|
|
mkdir -p $tmpdir/dev
|
|
mknod $tmpdir/dev/null c 1 3
|
|
mknod $tmpdir/dev/zero c 1 5
|
|
mknod $tmpdir/dev/tty c 5 0
|
|
mknod $tmpdir/dev/console c 5 1
|
|
|
|
if false; then
|
|
# FIXME: kernel doesn't like romfs as initrd ?!?!
|
|
genromfs -f /boot/initrd-${kernel}.img.tmp -d $tmpdir
|
|
else
|
|
# This works, but only for initrd images < 4 MB
|
|
dd if=/dev/zero of=/boot/initrd-${kernel}.img.tmp \
|
|
count=4096 bs=1024 &> /dev/null
|
|
mke2fs -m 0 -N 180 -F /boot/initrd-${kernel}.img.tmp &> /dev/null
|
|
mntpoint="`mktemp -d`"
|
|
mount -o loop /boot/initrd-${kernel}.img.tmp $mntpoint
|
|
rmdir $mntpoint/lost+found/
|
|
cp -a $tmpdir/* $mntpoint/
|
|
umount $mntpoint
|
|
rmdir $mntpoint
|
|
fi
|
|
gzip < /boot/initrd-${kernel}.img.tmp > /boot/initrd-${kernel}.img
|
|
rm -f /boot/initrd-${kernel}.img.tmp
|
|
|
|
rm -rf $tmpdir
|
|
echo "Done."
|
|
|