diff options
author | Mark Whitley <markw@lineo.com> | 2001-05-05 01:46:00 +0400 |
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committer | Mark Whitley <markw@lineo.com> | 2001-05-05 01:46:00 +0400 |
commit | a0ba9f45fb0c9f3e34d5a2b25e45b7e5d5cac9a4 (patch) | |
tree | 4f000c6356ba330d7cf5ade9d79a4167fb90e69f /examples/bootfloppy/mkrootfs.sh | |
parent | d24f878546806aa8fd50dc95fe3cc111ad10f92f (diff) |
Wrote documentation and scripts for creating a busybox boot floppy. Initial revision.
Diffstat (limited to 'examples/bootfloppy/mkrootfs.sh')
-rwxr-xr-x | examples/bootfloppy/mkrootfs.sh | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/examples/bootfloppy/mkrootfs.sh b/examples/bootfloppy/mkrootfs.sh new file mode 100755 index 000000000..cd6bef632 --- /dev/null +++ b/examples/bootfloppy/mkrootfs.sh @@ -0,0 +1,106 @@ +#!/bin/bash +# +# mkrootfs.sh - creates a root file system +# + +# TODO: need to add checks here to verify that busybox, uClibc and bzImage +# exist + + +# command-line settable variables +BUSYBOX_DIR=.. +UCLIBC_DIR=../../uClibc +TARGET_DIR=./loop +FSSIZE=4000 +CLEANUP=1 +MKFS='mkfs.ext2 -F' + +# don't-touch variables +BASE_DIR=`pwd` + + +while getopts 'b:u:s:t:Cm' opt +do + case $opt in + b) BUSYBOX_DIR=$OPTARG ;; + u) UCLIBC_DIR=$OPTARG ;; + t) TARGET_DIR=$OPTARG ;; + s) FSSIZE=$OPTARG ;; + C) CLEANUP=0 ;; + m) MKFS='mkfs.minix' ;; + *) + echo "usage: `basename $0` [-bu]" + echo " -b DIR path to busybox direcory (default ..)" + echo " -u DIR path to uClibc direcory (default ../../uClibc)" + echo " -t DIR path to target direcory (default ./loop)" + echo " -s SIZE size of root filesystem in Kbytes (default 4000)" + echo " -C don't perform cleanup (umount target dir, gzip rootfs, etc.)" + echo " (this allows you to 'chroot loop/ /bin/sh' to test it)" + echo " -m use minix filesystem (default is ext2)" + exit 1 + ;; + esac +done + + + + +# clean up from any previous work +mount | grep -q loop +[ $? -eq 0 ] && umount $TARGET_DIR +[ -d $TARGET_DIR ] && rm -rf $TARGET_DIR/ +[ -f rootfs ] && rm -f rootfs +[ -f rootfs.gz ] && rm -f rootfs.gz + + +# prepare root file system and mount as loopback +dd if=/dev/zero of=rootfs bs=1k count=$FSSIZE +$MKFS -i 2000 rootfs +mkdir $TARGET_DIR +mount -o loop,exec rootfs $TARGET_DIR # must be root + + +# install uClibc +mkdir -p $TARGET_DIR/lib +cd $UCLIBC_DIR +make INSTALL_DIR= +cp -a libc.so* $BASE_DIR/$TARGET_DIR/lib +cp -a uClibc*.so $BASE_DIR/$TARGET_DIR/lib +cp -a ld.so-1/d-link/ld-linux-uclibc.so* $BASE_DIR/$TARGET_DIR/lib +cp -a ld.so-1/libdl/libdl.so* $BASE_DIR/$TARGET_DIR/lib +cp -a crypt/libcrypt.so* $BASE_DIR/$TARGET_DIR/lib +cd $BASE_DIR + + +# install busybox and components +cd $BUSYBOX_DIR +make distclean +make CC=$BASE_DIR/$UCLIBC_DIR/extra/gcc-uClibc/i386-uclibc-gcc +make PREFIX=bootfloppy/loop install +cd $BASE_DIR + + +# make files in /dev +mkdir $TARGET_DIR/dev +./mkdevs.sh $TARGET_DIR/dev + + +# make files in /etc +cp -a etc $TARGET_DIR +ln -s /proc/mounts $TARGET_DIR/etc/mtab + + +# other miscellaneous setup +mkdir $TARGET_DIR/initrd +mkdir $TARGET_DIR/proc +$UCLIBC_DIR/ld.so-1/util/ldconfig -r $TARGET_DIR + + +# Done. Maybe do cleanup. +if [ $CLEANUP -eq 1 ] +then + umount $TARGET_DIR + rmdir $TARGET_DIR + gzip -9 rootfs +fi + |