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I have an HP 430 G1 laptop. It originally had Windows on it. I installed Ubuntu Desktop on it. I am able to connect to wifi. No Problem here. Ethernet port is not working.

I wanted to install ubuntu server on it and wanted to tinker around. But I cant get the wifi to work on Ubuntu server.

I have done following

  1. Configure netplan
  2. This one does not work because wlan0 i enter in config does not exist.
  3. I did iw dev to get devices, but it comes up empty
  4. Then I found these two links install Broadcom drivers Link1 and Link2
  5. for above links to work I have to get it on USB and put it on my sever machine.
  6. But USB drive shows special device /dev/sdb1/ does not exist (a path prefix is not a directory)
  7. seems like I am in dead lock situation

I have installed multiple different OS on this laptop in past 2 days. Proxmox Backup Server - USB works here, I can mount and get it data from it on the machine but wifi absolutely does not work here. Please suggest some way to get on the internet.

Edit1: ubuntu-20.04.3-live-server-amd64 and ubuntu-20.04.2.0-desktop-amd64 these are the ISO's I have

Rohan Dmello
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  • You didn't provide any release details; which maybe the difference between your desktop & server system. Ubuntu 20.04 LTS Desktop for example defaults to the HWE kernel stack; however Ubuntu 20.04 LTS Server defaults to GA kernel stack... Adding the other stack is the obvious fix if it was that release; but you gave no release specifics, or kernel stack details.. (ISO used for install dictates the kernel stack installed for some releases...) You tagged drivers which are technically called kernel modules; but didn't give the release/kernel details... – guiverc Jan 16 '22 at 04:28
  • I dont' actually know about stack, but here is what I have, ubuntu-20.04.3-live-server-amd64 and ubuntu-20.04.2.0-desktop-amd64. How would I get the stack you are taking about in my server iso? – Rohan Dmello Jan 16 '22 at 16:33
  • You had different products, with different defaults. The server (ISO) install defaults to GA stack where as the desktop (ISO) you had defaulted to a different HWE stack which is likely why you had different responses to both. You can have both stacks installed (on most boxes; some closed-source video drivers do prevent this though) to make both work the same - https://wiki.ubuntu.com/Kernel/LTSEnablementStack (the server ISO/install lets you select the stack at install time; desktop ISO/install does not). See "Server: Installing the HWE stack is simple" in provided doc. – guiverc Jan 16 '22 at 21:10
  • Thank you. I now understand the difference sort of. But the commands that are given in above documents require I already have ubuntu installed. I may have to install Desktop first and run this command ubuntu-drivers list-oem . I am not sure if the apt install command would work without internet connection. – Rohan Dmello Jan 17 '22 at 20:21

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