poky/meta/recipes-core/initrdscripts/initramfs-framework/rootfs
Ricardo Salveti 51c6e1d1cb initramfs-framework: rootfs: add support for LABEL
The rootfs can also be found via the partition label.

(From OE-Core rev: 037255f3c448bfc05f3e7373e1ddeee4bbea2164)

Signed-off-by: Ricardo Salveti <ricardo@opensourcefoundries.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2018-02-16 18:05:40 +00:00

1.9 KiB

#!/bin/sh

Copyright (C) 2011 O.S. Systems Software LTDA.

Licensed on MIT

rootfs_enabled() { return 0 }

rootfs_run() { if [ -z "$ROOTFS_DIR" ]; then return fi C=0 delay=${bootparam_rootdelay:-1} timeout=${bootparam_roottimeout:-5} while [ ! -d $ROOTFS_DIR/dev ]; do if [ $(( $C * $delay )) -gt $timeout ]; then fatal "root '$bootparam_root' doesn't exist or does not contain a /dev." fi

	if [ -n "$bootparam_root" ]; then
		debug "No e2fs compatible filesystem has been mounted, mounting $bootparam_root..."

		if [ "`echo ${bootparam_root} | cut -c1-5`" = "UUID=" ]; then
			root_uuid=`echo $bootparam_root | cut -c6-`
			bootparam_root="/dev/disk/by-uuid/$root_uuid"
		fi

		if [ "`echo ${bootparam_root} | cut -c1-9`" = "PARTUUID=" ]; then
			root_uuid=`echo $bootparam_root | cut -c10-`
			bootparam_root="/dev/disk/by-partuuid/$root_uuid"
		fi

		if [ "`echo ${bootparam_root} | cut -c1-6`" = "LABEL=" ]; then
			root_label=`echo $bootparam_root | cut -c7-`
			bootparam_root="/dev/disk/by-label/$root_label"
		fi

		if [ -e "$bootparam_root" ]; then
			flags=""
			if [ -n "$bootparam_ro" ] && ! echo "$bootparam_rootflags" | grep -w -q "ro"; then
				if [  -n "$bootparam_rootflags" ]; then
					bootparam_rootflags="$bootparam_rootflags,"
				fi
				bootparam_rootflags="${bootparam_rootflags}ro"
			fi
			if [ -n "$bootparam_rootflags" ]; then
				flags="$flags -o$bootparam_rootflags"
			fi
			if [ -n "$bootparam_rootfstype" ]; then
				flags="$flags -t$bootparam_rootfstype"
			fi
			mount $flags $bootparam_root $ROOTFS_DIR
			if [ -d $ROOTFS_DIR/dev ]; then
				break
			else
				# It is unlikely to change, but keep trying anyway.
				# Perhaps we pick a different device next time.
				umount $ROOTFS_DIR
				fi
			fi
	fi
	debug "Sleeping for $delay second(s) to wait root to settle..."
	sleep $delay
	C=$(( $C + 1 ))
done

}