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