Hi all.
When I run the CentOS 7 live DVD I am able to choose from available wireless networks in the GNOME network manager. Upon choosing a wireless network I am prompted for a password but after a minute or so the connection fails with no error message. The exact same thing occurs with a Ubuntu 18.04 live DVD.
However, I am already running Ubuntu 18.04 on the same machine (Thinkpad T420) and wireless works just fine. Is there some proprietary firmware which is not loaded in a live session which is then included in a bare metal Linux installation?
I do not have immediate access to a wired connection so I'm reluctant to nuke my Ubuntu installation which already has functioning wireless. Am I correct in thinking that I could install CentOS 7 alongside Ubuntu to check that the wireless works when the system is installed on hardware?
Wi-Fi: Live vs Bare Metal Installation Thinkpad T420
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- Posts: 3
- Joined: 2018/10/09 11:43:16
Re: Wi-Fi: Live vs Bare Metal Installation Thinkpad T420
I'm not sure how you're differentiating live vs. bare metal; they aren't exactly opposites, but yes, it is entirely possible drivers and firmware required for your particular wireless card are not installed or available during a live installation, or even post-installation.DavidDavies wrote: ↑2018/10/09 11:54:24Hi all.
When I run the CentOS 7 live DVD I am able to choose from available wireless networks in the GNOME network manager. Upon choosing a wireless network I am prompted for a password but after a minute or so the connection fails with no error message. The exact same thing occurs with a Ubuntu 18.04 live DVD.
However, I am already running Ubuntu 18.04 on the same machine (Thinkpad T420) and wireless works just fine. Is there some proprietary firmware which is not loaded in a live session which is then included in a bare metal Linux installation?
I do not have immediate access to a wired connection so I'm reluctant to nuke my Ubuntu installation which already has functioning wireless. Am I correct in thinking that I could install CentOS 7 alongside Ubuntu to check that the wireless works when the system is installed on hardware?
I would probably try a minimal installation instead as this will not require a network connection.
Re: Wi-Fi: Live vs Bare Metal Installation Thinkpad T420
Unable to reproduce on my T420 with Centrino Advanced-N 6205 wifi and CentOS-7-X86_64-LiveGNOME-1708.iso. Connected successfully with 2.4 and 5 Ghz band.
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- Posts: 3
- Joined: 2018/10/09 11:43:16
Re: Wi-Fi: Live vs Bare Metal Installation Thinkpad T420
When I run
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inxi -Fxz
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Network: Card-1: Intel 82579LM Gigabit Network Connection
driver: e1000e v: 3.2.6-k port: 5080 bus-ID: 00:19.0
IF: enp0s25 state: down mac: <filter>
Card-2: Intel Centrino Ultimate-N 6300
driver: iwlwifi bus-ID: 03:00.0
IF: wlp3s0 state: up mac: <filter>
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- Posts: 3
- Joined: 2018/10/09 11:43:16
Re: Wi-Fi: Live vs Bare Metal Installation Thinkpad T420
I found a working solution here: https://askubuntu.com/questions/902992/ ... s-changing. I changed the hardware (MAC) address in network manager to the address used in my Ubuntu installation. Now I have working wireless in the CentOS 7 live session.