linux-kernel - [PATCH] fallback to hostname in scripts/package/builddeb

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Date:	Sun, 2 Aug 2015 20:03:26 -0700 (PDT)
From:	Christian Kujau <lists@...dbynature.de>
To:	Michal Marek <mmarek@...e.cz>
cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] fallback to hostname in scripts/package/builddeb

Hi,

I happened to build a kernel with "make deb-pkg" on a machine with no 
network connectivity, but this failed with:

[...]
  INSTALL debian/headertmp/usr/include/asm/ (65 files)
hostname: Name or service not known
../scripts/package/Makefile:90: recipe for target 'deb-pkg' failed
make[2]: *** [deb-pkg] Error 1

In scripts/package/builddeb it tries to construct an email address (that 
can be queried in /proc/version later on) but with no network, 
the "hostname -f" fails. The following patch falls back to just use the 
shortname if we cannot determine our FQDN.

Signed-off-by: Christian Kujau <lists@...dbynature.de>

diff --git a/scripts/package/builddeb b/scripts/package/builddeb
index 88dbf23..7de1d1c 100755
--- a/scripts/package/builddeb
+++ b/scripts/package/builddeb
@@ -206,7 +206,7 @@ if [ -n "$DEBEMAIL" ]; then
 elif [ -n "$EMAIL" ]; then
        email=$EMAIL
 else
-       email=$(id -nu)@$(hostname -f)
+       email=$(id -nu)@$(hostname -f 2>/dev/null || hostname)
 fi
 if [ -n "$DEBFULLNAME" ]; then
        name=$DEBFULLNAME


-- 
BOFH excuse #334:

50% of the manual is in .pdf readme files
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