wok-next rev 4469

busybox/init: add raid support
author Pascal Bellard <pascal.bellard@slitaz.org>
date Mon Nov 09 17:17:30 2009 +0100 (2009-11-09)
parents 77991ef5de06
children facb3e18dff4
files busybox/stuff/init
line diff
     1.1 --- a/busybox/stuff/init	Mon Nov 09 10:26:03 2009 +0000
     1.2 +++ b/busybox/stuff/init	Mon Nov 09 17:17:30 2009 +0100
     1.3 @@ -1,7 +1,52 @@
     1.4  #!/bin/sh
     1.5  
     1.6 +mount_mapper()
     1.7 +{
     1.8 +	mount $root /mnt
     1.9 +	if [ -d /mnt/etc ]; then
    1.10 +		umount /sys
    1.11 +		for i in /dev/mapper $@ ; do
    1.12 +			cp -a $i /mnt$i
    1.13 +		done
    1.14 +		umount /proc
    1.15 +		echo -e "\\033[70G[ \\033[1;33mOK\\033[0;39m ]"
    1.16 +		exec /sbin/switch_root mnt /sbin/init
    1.17 +	fi
    1.18 +	echo -e "\\033[70G[ \\033[1;31mFailed\\033[0;39m ]"
    1.19 +}
    1.20 +
    1.21 +mount -t proc proc /proc
    1.22 +mount -t sysfs sysfs /sys
    1.23 +if grep -q dmraid= /proc/cmdline; then
    1.24 +	root="$(sed 's/.*dmraid=\([^ ]*\).*/\1/' < /proc/cmdline)"
    1.25 +	echo -n "Switching / to dmraid $root..."
    1.26 +	case "$(dmraid -s | grep ^type | awk '{ print $3 }')" in
    1.27 +	mirror)		modprobe dm-mirror;;
    1.28 +	raid[456]*)	modprobe raid456;;
    1.29 +	esac
    1.30 +	name=$(dmraid -s | grep ^name | awk '{ print $3 }')
    1.31 +	case "$root" in
    1.32 +	/dev/*);;
    1.33 +	p*) root=/dev/mapper/${name}$root ;;
    1.34 +	*)  root=/dev/mapper/${name}p$root ;;
    1.35 +	esac
    1.36 +	dmraid -ay
    1.37 +	mount_mapper
    1.38 +elif grep -q softraid= /proc/cmdline; then
    1.39 +	root="$(sed 's/.*softraid=\([^ ]*\).*/\1/' < /proc/cmdline)"
    1.40 +	echo -n "Switching / to softraid $root..."
    1.41 +	mdadm --examine --scan --config=partitions > /etc/mdadm.conf
    1.42 +	grep level=raid /etc/mdadm.conf | while read line; do
    1.43 +		case "$line" in
    1.44 +		*=raid1\ *)	modprobe dm-mirror ;;
    1.45 +		*=raid[456]\ *)	modprobe raid456 ;;
    1.46 +		esac
    1.47 +	done
    1.48 +	mdadm --assemble --scan
    1.49 +	mount_mapper /etc/mdadm.conf
    1.50 +fi
    1.51 +umount /sys
    1.52  echo -n "Switching / to tmpfs..."
    1.53 -mount -t proc proc /proc
    1.54  size="$(grep rootfssize= < /proc/cmdline | \
    1.55  	sed 's/.*rootfssize=\([0-9]*[kmg%]\).*/-o size=\1/')"
    1.56  free=$(busybox free | busybox awk '/Mem:/ { print int(($4*100)/$3) }')