From: Antonio Alvarez Feijoo <antonio.feijoo@suse.com>
Date: Fri, 10 Sep 2021 11:45:46 +0000 (+0200)
Subject: feat(dracut.sh): check if target kernel has zstd support compiled in
X-Git-Tag: 056~100
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=591118c56da2bfcea060e3b7671bc87b23c0e44a;p=thirdparty%2Fdracut.git

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.
---

diff --git a/dracut.sh b/dracut.sh
index 19d21ed97..0f111e80c 100755
--- a/dracut.sh
+++ b/dracut.sh
@@ -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"