From: Jonas Witschel <diabonas@gmx.de>
Date: Fri, 30 Aug 2019 12:45:15 +0000 (+0200)
Subject: dracut.sh: suppress "ignored null byte in input" warning
X-Git-Tag: 050~158
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0a010864565c60082bb2809d467cfc6c97e918c7;p=thirdparty%2Fdracut.git

dracut.sh: suppress "ignored null byte in input" warning

Since Bash 4.4, command substitutions containing null bytes produce a
warning of the form

/usr/sbin/dracut: line 1958: warning: command substitution: ignored null byte in input

Remove the trailing null byte from the UEFI kernel command line file
before printing it to suppress this warning.
---

diff --git a/dracut.sh b/dracut.sh
index 31eb97d55..87fcddfed 100755
--- a/dracut.sh
+++ b/dracut.sh
@@ -1955,7 +1955,7 @@ if [[ $uefi = yes ]]; then
     echo -ne "\x00" >> "$uefi_outdir/cmdline.txt"
 
     dinfo "Using UEFI kernel cmdline:"
-    dinfo $(< "$uefi_outdir/cmdline.txt")
+    dinfo $(tr -d '\000' < "$uefi_outdir/cmdline.txt")
 
     [[ -s /usr/lib/os-release ]] && uefi_osrelease="/usr/lib/os-release"
     [[ -s /etc/os-release ]] && uefi_osrelease="/etc/os-release"