For the ethernet adapter, I would check and see if a bootable thumb drive
has the same behavior. This may be a hardware-related issue and ruling that
out might be a good first step.

Were there any recent kernel or system updates that would have affected how
your drives are identified? Bios setting?

On Wed, Feb 16, 2022 at 12:38 AM Jim via PLUG-discuss <
plug-discuss@lists.phxlinux.org> wrote:

> I have a Dell Optiplex 7010 that has a couple of problems I'm trying to
> get sorted.   It has Kubuntu 20.04 with 32GB RAM.  The ssd it boots from
> is less than half full.  Over the weekend the Ethernet adapter which is
> on the motherboard started acting up. When I first boot the machine for
> the day, it doesn't detect the Ethernet adapter.  I first replaced the
> cable connecting it to the router, but that didn't bring the network
> back.  I rebooted the machine and it detected the Ethernet adapter.
> Now every time I reboot it, there's no network, and I have to reboot it
> again to the the network.  Any idea what might be causing this?  If the
> Ethernet adapter is going bad, would a USB Ethernet adapter or an
> internal one that uses the PCI slot be better?
>
> Now for the other problem.  The device notifier is supposed to pop up
> showing the storage device I plugged in and give me the option to mount
> it.  Several months ago it started showing every drive in the machine as
> a removable drive and giving me the option to unmount any that are
> mounted, including the drives inside the case.  I looked online for help
> with this and found a change to some config file that would hide those
> internal drives.  A few days ago I swapped out a drive in it and now
> that device notifier doesn't always show drives I attach to the system
> to do backups. I can't remember what config file I changed, so I can't
> undo whatever it was I did months ago.  Does anyone know what I messed up?
>
>
> Thanks
>
> Jim
>
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-- 
A mouse trap, placed on top of your alarm clock, will prevent you from
rolling over and going back to sleep after you hit the snooze button.

Stephen