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User-Agent: Mozilla/5.0 (X11; U; Linux i686; rv:1.7.3) Gecko/20041020
Firefox/0.10.1

Description of problem:
"and" is stronger than "or".
that's why the lines:
if [ "foo$2" = "fooboot" -a "${ONBOOT}" = "no" -o "${ONBOOT}" = "NO" ]
if [ -n "$IN_HOTPLUG" -a "${HOTPLUG}" = "no" -o "${HOTPLUG}" = "NO" ]

should be replaced with:
if [ "foo$2" = "fooboot" -a \("${ONBOOT}" = "no" -o "${ONBOOT}" = "NO"\) ]
if [ -n "$IN_HOTPLUG" -a \("${HOTPLUG}" = "no" -o "${HOTPLUG}" = "NO"\) ]

the condition should be:  $2 = boot AND ONBOOT equals either to "no"
or "NO"

right now the condition is: $2 = boot and ONBOOT equals to "no", OR
ONBOOT equals to "NO".

the same idea goes for the HOTPLUG expression




Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1. set ONBOOT=no in the /etc/sysconfig/network-scripts/ifcfg-eth0
2. boot the system
3. ifup will configure an IP on eth0
    

Actual Results:  ifup configures an IP on eth0

Expected Results:  eth0 should not be configured

Additional info: