Red Hat Bugzilla – Bug 154106
dhcp not possible when booting inside vmware
Last modified: 2007-11-30 17:07:06 EST
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Description of problem:
When using RHEL3 inside vmware and eth0 is set to dhcp, the check_link_down()-
function inside /etc/sysconfig/network-scripts/network-funktions fails to detect
the link and always returns "link down" which causes to fail getting the dhcp-
Starting dhclient manually works, so the problem is script-specific.
A quick (but dirty) workaround is making check_link_down-function in /etc/
sysconfig/network-scripts/network-funktions always return 1:
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Install RHEL inside vmware (bridged networking (pcnet32-driver)
2. Set eth0 to dhcp
3. Boot the System
4. The problem is reproducable every time you call /etc/init.d/networking start
Actual Results: The init-script always says "failed; no link present. Check cable?" when trying
to initialize eth0.
Expected Results: The link should be properly set up.
This Patch fixes the problem:
--- /etc/sysconfig/network-scripts/network-functions.RHEL3 2005-04-07 15:
+++ /etc/sysconfig/network-scripts/network-functions 2005-04-07 15:53:15.
@@ -251,6 +251,13 @@ check_link_down ()
ip link set dev $1 up >/dev/null 2>&1
while [ $timeout -le 10 ]; do
+ # VMware-Fixes email@example.com
+ if LC_ALL=C dmesg | grep -iq vmware ; then
+ return 1
+ if LC_ALL=C /sbin/lspci 2>/dev/null| grep -iq vmware ; then
+ return 1
The true problem is, that ethtool reports the vmware-net-device as "link down".
Unless ethtool or mii-tool do not recognize vmware-net-devices I suggest this
Please attatch the patch to this bug report, using the "Create a New Attachment"
Created attachment 112820 [details]
Patch to fix dhcp-problems with vmware
The driver used by vmware does not correctly report link status. This needs to
be fixed there.
Which RHEL3 release are you using? This sure sounds like bug 100527, which
should be fixed in RHEL3 U4 or later.
Please update to RHEL3 U4 (or later) and try to recreate this issue. If that
is not possible, please at least try the kernels available here:
Please report the results here. Thanks!
Yes, the problem is fixed in RHEL3 U4. Just tested it.
So bug 154106 can be closed.
Thanks for your patience.
An errata has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.
*** This bug has been marked as a duplicate of 100527 ***