From fdc5d1e8947bf60643c696443ad5d42e46305d24 Mon Sep 17 00:00:00 2001
From: Noam Yorav-Raphael <noam.yoravraphael@mobileye.com>
Date: Mon, 9 Sep 2024 19:11:31 +0300
Subject: [PATCH] Oops - after chroot, the root is `/`.

---
 src/libstore/unix/build/local-derivation-goal.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libstore/unix/build/local-derivation-goal.cc b/src/libstore/unix/build/local-derivation-goal.cc
index 4ca0cdfb7..168bf4531 100644
--- a/src/libstore/unix/build/local-derivation-goal.cc
+++ b/src/libstore/unix/build/local-derivation-goal.cc
@@ -1971,7 +1971,7 @@ void LocalDerivationGoal::runChild()
                 throw SysError("cannot remove real-root directory");
 
             // Make build root read-only, so `mkdir /homeless-shelter` would fail.
-            chmod_(chrootRootDir, 01555);
+            chmod_("/", 0555);
 
             /* Switch to the sandbox uid/gid in the user namespace,
                which corresponds to the build user or calling user in