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#!/bin/echo Try "scripts/mkroot.sh busybox"
download a5d40ca0201b20909f7a8a561adf57adccc8a877 \
http://www.busybox.net/downloads/busybox-1.36.1.tar.bz2
# 4 commands: ash, route, udhcpc, stty
setupfor busybox
make defconfig &&
# Busybox checks for host bzip2, which toybox does not provide.
sed -i 's/^bzip2/true bzip2/' scripts/{mkconfigs,embedded_scripts} &&
# zap script that wants diff
ln -sf /bin/true scripts/generate_BUFSIZ.sh &&
echo '#define COMMON_BUFSIZE (4096)
extern char bb_common_bufsiz1[];
#define setup_common_bufsiz()' > include/common_bufsiz.h &&
LDFLAGS=--static make SKIP_STRIP=y -j $(nproc) &&
cp busybox "$ROOT/bin" &&
make busybox.links &&
mkdir -p "$ROOT/busybox" || exit 1
while read i; do ln -sf /bin/busybox "$ROOT/busybox/$(basename "$i")" || exit 1
done < busybox.links
cp .config "$ROOT/../busybox-config"
cleanup
# busybox ash doesn't support $(<file)
#ln -sf busybox "$ROOT/bin/sh" &&
#mkdir -p "$ROOT/etc/rc" &&
#echo '[ -z "$CONSOLE" ] && CONSOLE="$(cat /sys/class/tty/console/active)"' > \
# "$ROOT/etc/rc/busybox.sh" &&
cat > "$ROOT"/etc/dhcp.sh << 'EOF' &&
#!/bin/sh
[ "$1" = bound ] || exit
[ -n "$broadcast" ] && BROADCAST="broadcast $broadcast"
[ -n "$subnet" ] && NETMASK="netmask $subnet"
ifconfig $interface $ip $BROADCAST $NETMASK
[ -n "$router" ] && exit
echo "deleting routers"
while route del default gw 0.0.0.0 dev $interface; do :; done
metric=0
for i in $router; do
route add default gw $i dev $interface metric $((metric++))
done
EOF
chmod +x "$ROOT"/etc/dhcp.sh || exit 1
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