daandemeyer / rpms / systemd

Forked from rpms/systemd 2 years ago
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From a1417c121d19272b1389098648132106a5ffc661 Mon Sep 17 00:00:00 2001
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From: Kairui Song <kasong@redhat.com>
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Date: Thu, 14 Jan 2021 01:25:20 +0800
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Subject: [PATCH] initrd: do a debug log if /etc/initrd-release doesn't take
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 effect
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Signed-off-by: Kairui Song <kasong@redhat.com>
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(cherry picked from commit 4a60d8cbcae574896a28f9f1f6204a1bddca8e99)
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Related: #1959339
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---
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 src/basic/util.c | 13 +++++++++++--
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 1 file changed, 11 insertions(+), 2 deletions(-)
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diff --git a/src/basic/util.c b/src/basic/util.c
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index fef52ad5ff..609f8c2f33 100644
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--- a/src/basic/util.c
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+++ b/src/basic/util.c
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@@ -174,8 +174,17 @@ bool in_initrd(void) {
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                 saved_in_initrd = r > 0;
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         }
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-        if (saved_in_initrd != 0)
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-                saved_in_initrd = access("/etc/initrd-release", F_OK) >= 0;
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+        r = access("/etc/initrd-release", F_OK);
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+        if (r >= 0) {
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+                if (saved_in_initrd == 0)
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+                        log_debug("/etc/initrd-release exists, but it's not an initrd.");
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+                else
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+                        saved_in_initrd = 1;
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+        } else {
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+                if (errno != ENOENT)
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+                        log_debug_errno(errno, "Failed to test if /etc/initrd-release exists: %m");
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+                saved_in_initrd = 0;
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+        }
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         return saved_in_initrd;
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 }