Also try lighter distro for such old computer that im now making alive with lighter then ubuntu like kubuntu with effects i like or xubuntu or lightest lubuntu. Since each time starting i have ubuntu bug of update-apt-xapi using minute of cpu can also try clean debian distros for old computers. https://bugs.launchpad.net/ubuntu/+source/apt-xapian-index/+bug/1958041
Well, lan you should try to connect, since manually downloading moving packages can be risky of infections.
Also try to Connect your pc to your Android phone with a USB cable tethering and on phone's settings....connections, more settings click on USB tethering option. That's all now you would get internet connection on pc. Now can install all whats needed to get wifi from phone wifi hotspot working.
Can also tethering from phone with wire usb or at friends, if interested in aquiring such with internet wire from router to plug for a second dirrect or 2nd wire from router.
I got it and fixed it with testing.
After each command try reboot to know if no more commands needed.
Test if this works. Both or one of packages
sudo apt install firmware-b43-installer
It also installs and uses b43-fwcutter
Maybe some need not that but
sudo apt install firmware-b43legacy-installer
Then
modprobe b43
I think this one fixed it, in case after reboot doesnt work.
maybe again after reboot can check- errors for some other drivers showing, but your driver will be already installed
sudo update-initramfs -u -k all
From my testing in
https://askubuntu.com/a/1387312/9550
lspci -knn | grep Net -A2
terminal command. – Pilot6 Oct 25 '15 at 14:15