From c734a59f86e0c2a596cf7f41cdf98bc007f3abd7 Mon Sep 17 00:00:00 2001
From: Johannes 'josch' Schauer <josch@mister-muffin.de>
Date: Thu, 25 Apr 2019 08:56:42 +0200
Subject: [PATCH] chdir to parent of root before remove_tree to prevent 'cannot
 stat initial working directory' of File::Path

---
 mmdebstrap | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/mmdebstrap b/mmdebstrap
index 604fd8c..77cbb76 100755
--- a/mmdebstrap
+++ b/mmdebstrap
@@ -2384,6 +2384,11 @@ sub main() {
 	    # Since this is still inside the unshared namespace, there is
 	    # no risk of removing anything important.
 	    $pid = get_unshare_cmd {
+		# File::Path will produce the error "cannot stat initial
+		# working directory" if the working directory cannot be
+		# accessed by the unprivileged unshared user. Thus, we first
+		# navigate to the parent of the root directory.
+		chdir "$options->{root}/.." or error "unable to chdir() to parent directory of $options->{root}: $!";
 		remove_tree($options->{root}, {error => \my $err});
 		if (@$err) {
 		    for my $diag (@$err) {