Red Hat Bugzilla – Bug 275461
dhcp hangs without ethernet
Last modified: 2014-03-16 23:08:16 EDT
Description of problem: during the boot sequence, on the penultimate step, it
correctly reports that the ethernet is not available. It suggests that I check
the cable. Good.
On the next step, it broadcasts a request for a dhcp server to provide an IP
address. It hangs. Duh?
It should have remembered that there is no cable connected and hence skip any
attempt at connection.
Version-Release number of selected component (if applicable):
Install with Internet cable.
Attempt to boot.
Steps to Reproduce:
Should skip attempt to obtain IP address when there is no connection.
That's certainly an icky bug, but it's nothing to do with bootchart. Shifting
the blame to anaconda.
Do you have multiple network devices (wired and wireless?)
Aye, forsooth. My laptop has both a wired and a wireless network capability.
However, depending on where I use it, I have only one or the other -- not both
I istalled Fedora 7 without any problems, while the notebook was attached with
the wired connection. I rebooted several times, just to check-out the boot
Then, when I took the notebook to where only a wireless signal is available,
the test for the wire connection correctly failed and helpfully suggested that
I should check the Internet connection.
The next step was an attempt to log-on to a dhcp server, which hung. Duh?
Obviousely, this step should have been skipped in view of the result of the
Finally, there should be an opportunity to configure the wireless connection.
It has to be possible to do so without an existing connection to the Internet.
Remember, I never have both wired and wireless at the same time.
Has this additional description helped you, Bill?
If you so desire, you may e-mail me directly at firstname.lastname@example.org or if you provide
a land-line telephone number, I will call you (at no expense to you).
When it was checking for a DHCP address, it was almost certainly checking for it
on the wireless link - does it list a different device name?
Nay not. It went directly from the (correct) failure of the probe for a wired
connection to the attempt to connect to a dhcp server. It did NOT show an
attempt to find a wireless connection.
And, once it attempted to connect to a dhcp host, it did not display anything
more -- it just hung.
Besides, the wireless system has a security log-in requirement. The Fedora 7
would have had to request that I enter the necessary credentials, before the
wireless connection could be established.
What I would expect is for the Anaconda to boot-up WITHOUT any network
connection. Then, when the whole system is running -- including the user
interface --, I would go to the relevant network control program to configure
the wireless connection. Finally, I would initiate an attempt to connect
wirelessly to the Internet.
A eireless connection does not just happen by itself. It requires user
intervention to autenticate the client notebook computer to the wireless
hotspot, before the hotspot will allow the connection to proceed.
I would presume that this process is too complicated for Anaconda to perform.
Instead, Anaconda should just let the Fedora boot-up without any network
connection. Then when the whole system is up and running, let the user
initiate a manual connection to a wireless network, if such a network is
available. There very well might not be any wireless available.
Gramercy for your interest in this problem and your quick involvement.
Can you attach all the /etc/sysconfig/network-scripts/ifcfg-* files?
Gramercy, Bill Nottingham. You have fixed it!
Each time that I had been connected on the wired (ethernet) networ, there were
updates automatically downloaded and installed.
Yesterday, I noticed a change in AnacondA. So, this morning, I attempted to
boot Fedora here -- where only the WIRELESS network is available.
Anaconda "failed" on both the etho and wlan0, but it allowed the boot to
proceed. When gnome UI came-up, I loged into the wireless network (after
supplying the appropriate password). It works very well wireless!!!
Just to make sure, I restarted: OK.
I hybernated and started it up: OK.
Once again, Gramercy Bill. Excellent.
OK, closing for now. I've been unable to reproduce the hang here.