Bug 608415 – unable to re-generate ifcfg-eth0 for virtio NIC

Bug 608415 - unable to re-generate ifcfg-eth0 for virtio NIC

Summary:	unable to re-generate ifcfg-eth0 for virtio NIC

Status:	CLOSED WORKSFORME

Aliases:	None

Product:	Red Hat Enterprise Linux 5
Classification:	Red Hat
Component:	kudzu (Show other bugs)
Sub Component:
Version:	5.5
Hardware:	All Linux

Priority	low Severity medium
Target Milestone:	rc
Target Release:	---
Assigned To:	Bill Nottingham
QA Contact:	BaseOS QE Security Team
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Reported:	2010-06-27 08:38 EDT by CAI Qian
Modified:	2014-03-16 23:24 EDT (History)
CC List:	1 user (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
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Last Closed:	2010-06-27 09:17:56 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description CAI Qian 2010-06-27 08:38:51 EDT

Description of problem:
If ifcfg-eth0 had been removed or changed to another NIC before changed back to virtio NIC in a rhel5.5 guest, it ended up ifcfg-eth0 was not re-generated.

Version-Release number of selected component (if applicable):
kudzu-1.2.57.1.24-1
kernel-2.6.18-194.el5

HOST:
kernel-2.6.32-37.el6.x86_64
qemu-kvm-0.12.1.2-2.78.el6.x86_64

How reproducible:
always

Steps to Reproduce:
1. remove /etc/sysconfig/network-scripts/ifcfg-eth0
2. reboot the guest
  
Actual results:
no eth0

Expected results:
eth0 is up

Comment 1 CAI Qian 2010-06-27 09:08:41 EDT

I think the real problem is the sequence,
1) remove ifcfg-eth0 under virtio NIC
2) change the NIC to other NICs (like e1000) and reboot
3) change the NIC to virtio NIC and reboot

In rhel4.8, kudzu detected the change and re-generated ifcfg-eth0 in both 2) and 3). In rhel5.5, it only generated it in 2).

Comment 2 CAI Qian 2010-06-27 09:17:56 EDT

Oops, looks like e1000 behaviour the same. Although this is a different behaviour with rhel4.8, I am fine with the new behaviour.

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