fix(dracut-initramfs-restore.sh): hide unpack errors

With the current "try and fail" approach, the system log contains errors until
the correct initrd compression is reached.

diff --git a/dracut-initramfs-restore.sh b/dracut-initramfs-restore.sh
index 68ea3873b8f095ea671f1893a4afb4db57815d71..8a46508df368c236961c5dc1136a6d362e09769e 100644 (file)
--- a/dracut-initramfs-restore.sh
+++ b/dracut-initramfs-restore.sh
@@ -51,13 +51,13 @@ fi
 
 cd /run/initramfs
 
-if $SKIP "$IMG" | zcat | cpio -id --no-absolute-filenames --quiet > /dev/null \
-    || $SKIP "$IMG" | bzcat | cpio -id --no-absolute-filenames --quiet > /dev/null \
-    || $SKIP "$IMG" | xzcat | cpio -id --no-absolute-filenames --quiet > /dev/null \
-    || $SKIP "$IMG" | lz4 -d -c | cpio -id --no-absolute-filenames --quiet > /dev/null \
-    || $SKIP "$IMG" | lzop -d -c | cpio -id --no-absolute-filenames --quiet > /dev/null \
-    || $SKIP "$IMG" | zstd -d -c | cpio -id --no-absolute-filenames --quiet > /dev/null \
-    || $SKIP "$IMG" | cpio -id --no-absolute-filenames --quiet > /dev/null; then
+if (command -v zcat > /dev/null && $SKIP "$IMG" 2> /dev/null | zcat 2> /dev/null | cpio -id --no-absolute-filenames --quiet > /dev/null 2>&1) \
+    || (command -v bzcat > /dev/null && $SKIP "$IMG" 2> /dev/null | bzcat 2> /dev/null | cpio -id --no-absolute-filenames --quiet > /dev/null 2>&1) \
+    || (command -v xzcat > /dev/null && $SKIP "$IMG" 2> /dev/null | xzcat 2> /dev/null | cpio -id --no-absolute-filenames --quiet > /dev/null 2>&1) \
+    || (command -v lz4 > /dev/null && $SKIP "$IMG" 2> /dev/null | lz4 -d -c 2> /dev/null | cpio -id --no-absolute-filenames --quiet > /dev/null 2>&1) \
+    || (command -v lzop > /dev/null && $SKIP "$IMG" 2> /dev/null | lzop -d -c 2> /dev/null | cpio -id --no-absolute-filenames --quiet > /dev/null 2>&1) \
+    || (command -v zstd > /dev/null && $SKIP "$IMG" 2> /dev/null | zstd -d -c 2> /dev/null | cpio -id --no-absolute-filenames --quiet > /dev/null 2>&1) \
+    || ($SKIP "$IMG" 2> /dev/null | cpio -id --no-absolute-filenames --quiet > /dev/null 2>&1); then
     rm -f -- .need_shutdown
 else
     # something failed, so we clean up