From 4e25cf6edf94755219a822ebc0e108e13377cc27 Mon Sep 17 00:00:00 2001

From: Daniel Drake <dsd@laptop.org>

Date: Fri, 16 Mar 2012 21:11:24 +0000

Subject: [PATCH] Avoid use of "export -n"

"export -n" is a bash extension, not part of POSIX, and is hence

incompatible with the busybox shell.

This was breaking boot when the busybox module was used.

Reimplement the scope change in a few lines of standard shell code.

---

 modules.d/99base/init.sh |    9 ++++++++-

 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/modules.d/99base/init.sh b/modules.d/99base/init.sh

index fa712a7..84c13e0 100755

--- a/modules.d/99base/init.sh

+++ b/modules.d/99base/init.sh

@@ -263,8 +263,15 @@ else

     udevadm info --cleanup-db

 fi

+# Retain the values of these variables but ensure that they are unexported

+# This is a POSIX-compliant equivalent of bash's "export -n"

+for var in root rflags fstype netroot NEWROOT; do

+    eval tmp=\$$var

+    unset $var

+    [ -n "$tmp" ] && eval $var=\"$tmp\"

+done

+

 export RD_TIMESTAMP

-export -n root rflags fstype netroot NEWROOT

 set +x # Turn off debugging for this section

 # Clean up the environment

 for i in $(export -p); do