[PATCH 4/5] populate: require e2image before populating

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From: Darrick J. Wong <djwong@xxxxxxxxxx>

Use $E2IMAGE_PROG, not e2image, and check that it exists before
proceeding.

Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
 common/populate |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)


diff --git a/common/populate b/common/populate
index 66c55b682f..05bdfe33c5 100644
--- a/common/populate
+++ b/common/populate
@@ -18,6 +18,7 @@ _require_populate_commands() {
 		;;
 	ext*)
 		_require_command "$DUMPE2FS_PROG" "dumpe2fs"
+		_require_command "$E2IMAGE_PROG" "e2image"
 		;;
 	esac
 }
@@ -874,7 +875,7 @@ _scratch_populate_restore_cached() {
 		return $res
 		;;
 	"ext2"|"ext3"|"ext4")
-		e2image -r "${metadump}" "${SCRATCH_DEV}"
+		$E2IMAGE_PROG -r "${metadump}" "${SCRATCH_DEV}"
 		ret=$?
 		test $ret -ne 0 && return $ret
 




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