The Internet is not working on my new HP Pavilion laptop (machine A). From what I read, I might be able to cure the problem by installing some extra packages on A. I'm now running on Machine B. On B I can do apt-get install blah. So how would I obtain and install blah on A, presumably using a memory stick to transfer it from B?
Edit:
My response to the ccomment below, the ifconfig output is:
eth0 Link encap:Ethernet HWaddr 48:ba:4e:52:aa:7f
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0
txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:181 errors:0 dropped:0 overruns:0 frame:0
TX packets:181 errors:0 dropped:0 overruns:0 carrier:0 collisions:0
txqueuelen:1 RX bytes:12784 (12.7 KB) TX bytes:12784 (12.7 KB)
I've learned that on my machine, neither wireless nor wired works on Kubuntu 14.04.5. But on 16.04, wireless works but wired does not. From poking around I've learned that the problem has to do with the Realtek drivers, which probably need to be replaced. (I want to run 14.04.5, not 16.04; in brief, the reason for that is that 14.04 is the last version of Kubuntu that supports different wallpaper on different desktops.) Atleast I've ascertained that I don't have a hardware problem. Finding and installing the corrected Realtek drivers is a challenge by itself, but at least I have a path for installing them (I think).