# dd if=/dev/zero of=rootfs bs=1k count=4000
4000+0 records in
4000+0 records out
#

# losetup /dev/loop0 rootfs
#

# mkfs.ext2 -F -i 2000 rootfs
mke2fs 1.35 (28-Feb-2004)
rootfs is mounted; mke2fs forced anyway.  Hope /etc/mtab is incorrect.
Filesystem label=
OS type: Linux
Block size=1024 (log=0)
Fragment size=1024 (log=0)
2048 inodes, 4000 blocks
200 blocks (5.00%) reserved for the super user
First data block=1
1 block group
8192 blocks per group, 8192 fragments per group
2048 inodes per group

Writing inode tables: done                            
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 39 mounts or
180 days, whichever comes first.  Use tune2fs -c or -i to override.
# 

# mkdir loop
# mount -o loop rootfs loop/

# make menuconfig

# make
# make PREFIX=/loop install
# cd /loop
# ls
bin  linuxrc  lost+found  sbin  usr
# 

# cd bin
# ldd busybox 
        linux-gate.so.1 =>  (0x00a37000)
        libm.so.6 => /lib/tls/libm.so.6 (0x00721000)
        libcrypt.so.1 => /lib/libcrypt.so.1 (0x00781000)
        libc.so.6 => /lib/tls/libc.so.6 (0x005fe000)
        /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x005e5000)
# 

# cd..
# mkdir lib
# mkdir lib/tls
# cp /lib/tls/libm.so.6 lib/tls/
# cp /lib/tls/libc.so.6 lib/tls/
# cp /lib/libcrypt.so.1 lib/
# cp /lib/ld-linux.so.2 lib/
# 

proc            /proc   proc    defaults    0  

::sysinit:/etc/init.d/rcS
::respawn:-/bin/sh
tty2::askfirst:-/bin/sh
::ctrlaltdel:/bin/umount -a -r

#! /bin/sh

/bin/mount -

# ln -s /proc/mounts /loop/etc/mtab

#!/bin/sh
#
# makedev.sh - creates device files for a busybox boot floppy image


# we do our work in the dev/ directory
if [ -z "$1" ]; then
	echo "usage: `basename $0` path/to/dev/dir"
	exit 1
fi

cd $1


# miscellaneous one-of-a-kind stuff
mknod console c 5 1
mknod full c 1 7
mknod kmem c 1 2
mknod mem c 1 1
mknod null c 1 3
mknod port c 1 4
mknod random c 1 8
mknod urandom c 1 9
mknod zero c 1 5
ln -s /proc/kcore core

# IDE HD devs
# note: not going to bother creating all concievable partitions; you can do
# that yourself as you need 'em.
mknod hda b 3 0
mknod hdb b 3 64
mknod hdc b 22 0
mknod hdd b 22 64

# loop devs
for i in `seq 0 7`; do
	mknod loop$i b 7 $i
done

# ram devs
for i in `seq 0 9`; do
	mknod ram$i b 1 $i
done
ln -s ram1 ram

# ttys
mknod tty c 5 0
for i in `seq 0 9`; do
	mknod tty$i c 4 $i
done

# virtual console screen devs
for i in `seq 0 9`; do
	mknod vcs$i b 7 $i
done
ln -s vcs0 vcs

# virtual console screen w/ attributes devs
for i in `seq 0 9`; do
	mknod vcsa$i b 7 $i
done
ln -s vcsa0 vcsa

# mkdir dev
# mkdev.sh /loop/dev
# ls dev/
console  hdd    loop4  port  ram4  random  tty4  urandom  vcs4  vcsa   vcsa5
core     kmem   loop5  ram   ram5  tty     tty5  vcs      vcs5  vcsa0  vcsa6
full     loop0  loop6  ram0  ram6  tty0    tty6  vcs0     vcs6  vcsa1  vcsa7
hda      loop1  loop7  ram1  ram7  tty1    tty7  vcs1     vcs7  vcsa2  vcsa8
hdb      loop2  mem    ram2  ram8  tty2    tty8  vcs2     vcs8  vcsa3  vcsa9
hdc      loop3  null   ram3  ram9  tty3    tty9  vcs3     vcs9  vcsa4  zero
# 

# mkdir proc

# umount loop
# gzip -9 rootfs

# Example mtools.conf files.  Uncomment the lines which correspond to
# your architecture and comment out the "SAMPLE FILE" line below

# Linux floppy drives
drive a: file="/dev/fd0" exclusive mformat_only
drive b: file="/dev/fd1" exclusive mformat_only
drive e: file="/dev/sda1" exclusive mformat_only                   <-- 추가

........

# mformat e:
#

# cd /usr/src/linux-2.6.7
# make menuconfig
# make bzImage

display display.txt
default linux
timeout 10
label linux
        kernel linux
        append initrd=rootfs.gz root=/dev/ram0 rw

   
    Linux based on USB-storage!!!!

# syslinux /dev/sda1
# mcopy syslinux.cfg e:
# mcopy display.txt e:
# mcopy rootfs.gz e:
# mcopy /usr/src/linux-2.6.7/arch/i386/boot/bzImage e:linux