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Have you seen this supplier https://www.entroware.com/store/laptops
Or this one https://www.junocomputers.com/product-category/laptops/

There is something unusual in your set up.
If you did a clean install of Windows 10 to sda, then your EFI partition should be on sda also.

Your EFI partition is on sdb1 Line 117

It may well be...

Your set up is intricate with laptop speaker, TV speakers, soundbar, headset etc.
Also, you did not mention which speakers have been lost?
Did you have sound before updating to 20.10?

In this...

Yes, I am an advocate of this approach.

If you have multiple drives accessible when performing an Ubuntu installation, human error and uncertainty creep in unknowingly (especially if this is your...

Is there anything preventing you from de-activating both your drives in your Desktop PC to discover if your laptop clone boots?

Ubuntu Disco Dingo reached End of Life in January 2020. You should install a current version.

It wasn't clear from your original post that you had 3 separate drives.

As Ubuntu is installed on a separate disk, which was added after purchase, it seems odd that you cannot then replace this...

Is that a separate physical drive?
Are you dual booting with Windows 10?

Does this web site provide any help? https://help.ubuntu.com/rst/

I'm not at all familiar with RAID but there are some...

Have you tried this?

Remove, isolate, de-activate your source SSD
Only leave the cloned disk accessible

Does it boot?

You can check the boot mode via the terminal:-

[ -d /sys/firmware/efi ] && echo "UEFI mode" || echo "Legacy mode"

Is F2 the key to enter the UEFI set up pages (i.e. before you choose the OS)?

Keyboard or other hardware problem?

Not quite the right solution - that's a pity.

I notice that you use the 5.8 kernel in your output.
There are some recent forum posts about this kernel causing problems with Internet, Sound,...

Yes, it sounds like it's behaving as expected.

The comment above is from the official site https://lubuntu.me/focal-1-released/

A fresh installation is essential.

Yes, there is a little shortcut.

You have to find the driver which is used by your wifi:-

sudo lshw -C network 2>&1 | grep wireless | grep driver
My result is:-

redact@redact:~$ sudo lshw...

You did not mention which Ubuntu flavour/version you are using, however, here is the link to the manifest of Ubuntu 20.04 Desktop which will list all the default packages including fonts.
...

That's OK - You can still adjust the grub in your Xubuntu SSD to automatically select a working kernel.

I always isolate, de-activate or remove other drives (i.e. your Windows 10 drive) to avoid...

This is the method I used 18 months ago when a kernel upgrade caused a very slow (2 minutes) boot process.

Back up your existing grub and change the default kernel as follows:-

sudo nano...

Do you want to remove the troublesome kernels or change grub to persistently boot a different kernel?

You have to be in the same folder (probably Downloads) to activate the shell script.

cd Downloads

ls
Can you see the items that you downloaded?

This isn't going to plan yet, is it?

Are you familiar with gdisk

Here is the info http://www.rodsbooks.com/gdisk/walkthrough.html

It may help, it may not...............

Try disk-destroyer - identify your device first to avoid catastrophe.


sudo dd if=/dev/zero of=/dev/sdx bs=1M count=10

Then see if gparted will allow you to add a partition table.

Why not write a new partition table to the card rather than deleting a partition?

Or use parted via the terminal?

https://www.tecmint.com/create-disk-partitions-in-linux/

Please explain what happens when you open gparted and enter your password?
There must be something else wrong if your password fails to open it?

In the meantime try:-

gnome-disk-utility...

When you open gparted, you should see a window asking for authentication?

Enter your login password to access elevated privileges.