From 19deb9b658f102f44cec54ea85839b508017030b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@gnu.org>
Date: Mon, 1 Sep 2025 14:45:40 +0200
Subject: [PATCH] =?UTF-8?q?daemon:=20=E2=80=9Ccannot=20read=20potential=20?=
 =?UTF-8?q?root=E2=80=9D=20messages=20shows=20errno=20message.?=
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* nix/libstore/gc.cc (findRoots): Print the message corresponding to errno.

Change-Id: Ia0ddfa6512bbeced1fb0c7c0cc69899674330f29
---
 nix/libstore/gc.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/nix/libstore/gc.cc b/nix/libstore/gc.cc
index 77a2a7027db..610270f907e 100644
--- a/nix/libstore/gc.cc
+++ b/nix/libstore/gc.cc
@@ -318,7 +318,8 @@ static void findRoots(StoreAPI & store, const Path & path, unsigned char type, R
     catch (SysError & e) {
         /* We only ignore permanent failures. */
         if (e.errNo == EACCES || e.errNo == ENOENT || e.errNo == ENOTDIR)
-            printMsg(lvlInfo, format("cannot read potential root `%1%'") % path);
+            printMsg(lvlInfo, format("cannot read potential root '%1%': %2%")
+		     % path % strerror(e.errNo));
         else
             throw;
     }