From df1827d991f8a86966b4267622da739fb7238362 Mon Sep 17 00:00:00 2001
From: Johannes 'josch' Schauer <josch@mister-muffin.de>
Date: Fri, 10 Apr 2020 12:26:00 +0200
Subject: [PATCH] check if /usr/sbin/update-binfmts exists

---
 mmdebstrap | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/mmdebstrap b/mmdebstrap
index e5b1437..f3a15ca 100755
--- a/mmdebstrap
+++ b/mmdebstrap
@@ -3312,6 +3312,10 @@ sub main() {
                     if (!exists $deb2qemu->{ $options->{nativearch} }) {
                         warning "no mapping from $options->{nativearch} to"
                           . " qemu-user binary";
+                    } elsif (
+                        system('/usr/sbin/update-binfmts --version>/dev/null')
+                        != 0) {
+                        warning "cannot find /usr/sbin/update-binfmts";
                     } else {
                         my $binfmt_identifier
                           = 'qemu-' . $deb2qemu->{ $options->{nativearch} };