feat(dracut.sh): check if target kernel has zstd support compiled in

If compression option is zstd, check if target kernel supports it. Otherwise, do not compress the initramfs image.
3 years ago · 591118c56d
1 changed files with 5 additions and 0 deletions
--- a/dracut.sh
+++ b/dracut.sh
@ -2381,6 +2381,11 @@ case $compress in
				@@ -2381,6 +2381,11 @@ case $compress in
        ;;
 esac

+if [[ $compress == $DRACUT_COMPRESS_ZSTD* ]] && ! check_kernel_config CONFIG_RD_ZSTD; then
+    dwarn "dracut: kernel has no zstd support compiled in."
+    compress="cat"
+fi
+
 if ! (
    umask 077
    cd "$initdir"