update

inc/post-install.inc

@@ -300,7 +300,7 @@ TAPM_POST_PRECHECK() {
 		fi
 		pve_major="$(
 			pveversion 2>/dev/null |
-				sed -n 's/.*pve-manager\\/\\([0-9][0-9]*\\).*/\\1/p' |
+				sed -n 's/.*pve-manager\/\([0-9][0-9]*\).*/\1/p' |
 				head -1
 		)"
 		if [[ "$pve_major" != '9' ]]; then