From 873b51b34057d9d13c628289f57b10dec07b2060 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@gnu.org>
Date: Tue, 2 Aug 2016 12:34:14 +0200
Subject: [PATCH] mapped-devices: Bail out when RAID sources don't show up.
* gnu/system/mapped-devices.scm (open-raid-device): Bail out after 20
loop iterations.
---
gnu/system/mapped-devices.scm | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/gnu/system/mapped-devices.scm b/gnu/system/mapped-devices.scm
index 2a0706e50b0..ce0a78a2ad5 100644
--- a/gnu/system/mapped-devices.scm
+++ b/gnu/system/mapped-devices.scm
@@ -135,12 +135,16 @@ (define (open-raid-device sources target)
(use-modules (srfi srfi-1) (ice-9 format))
(let ((sources '#$sources))
- (let loop ()
+ (let loop ((attempts 0))
(unless (every file-exists? sources)
+ (when (> attempts 20)
+ (error "RAID devices did not show up; bailing out"
+ sources))
+
(format #t "waiting for RAID source devices~{ ~a~}...~%"
sources)
(sleep 1)
- (loop)))
+ (loop (+ 1 attempts))))
(zero? (system* (string-append #$mdadm "/sbin/mdadm")
"--assemble" #$target sources)))))
--
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