Install Linux Mint 20 after Ubuntu 18.04 LTS

I've tried using Ubuntu 18.04 LTS in an old notebook, but the PC is generally a little sluggish because it's only a vintage one. So I put in the lightweight and popular "Linux Mint" and made it possible to dual boot with Ubuntu.

This time, I chose the latest version "20" based on Ubuntu 20.04LTS and "Cinnamon" as the desktop environment.

procedure

Download the "Linux Mint 20" iso image file and burn it to a DVD-R
Turn off the power and boot from the "Linux Mint 20 DVD" made in 1 on the PC.
After booting with Mint, create a partition for Mint with "GParted"
Install Linux Mint 20 on the new partition
Enable dual boot of Ubuntu and Linux Mint

Details

1 and 2 are omitted.

When Mint starts, first change the disk partition.

[m mark] at the bottom left → enter [GParted] in the search window → execute [GParted]
Click "/ dev / sda1" containing Ubuntu and select [Resize / Move] from [Partition] in the menu.
Reduce the area of sda1 and secure free space behind (takes about 50GB)
Press the check button to apply the changes

Once you've made your changes, click "install Linux Mint" on your desktop and the installer will start working.

Set the language
Set keyboard
Check the codec
Select the installation method. I'm aware that Ubuntu 18.04 LTS is already installed.
Check the top here and click "Continue" to install the partition in two parts. The size of the area can be changed, but it cannot be eliminated. I wanted to keep one partition, so I will go back once.
Check "Other" and "Continue"
Disk information will be displayed. Click the "+" button below to create a partition in the free space. Specify "ext4" for the usage method and "/" for the mount point.
If there is no problem with the installation area, click "Install" at the bottom right. With this notebook, the window pops out and I can't move it, so I hurriedly connected an external display and managed to click it.
Reconfirm
A map will be displayed. Click "Continue" in "Tokyo".
Enter user information and password
Installation proceeds

When the installation is complete, you will be asked if you want to restart, so restart immediately.

Dual boot settings

In the case of dual boot of Linux and Windows, when I was editing the boot loader (Grub), something went wrong and it did not boot at all ... (I have experience), but this time it is a problem because it is between Linux On the contrary, it was edited, and after rebooting, a screen for selecting the OS was displayed smoothly.

So both Linux Mint 20 and Ubuntu 18.04 LTS were able to start normally, so it's completed for the time being.

Comparison

A little comparison between Ubuntu 18.04 LTS and Linux Mint 20.

Start-up time

I didn't feel that there was such a difference, probably because I used SSD. Both are faster than Windows! The place.

memory usage

I checked the memory usage after a while after starting up.

--Linux Mint 20 → Less than 1GB

Ubuntu18.04LTS → 1.5GB

It's just for reference because the conditions are not the same, such as different apps, but it's wonderful that Mint was less than 1GB. I'm happy that it's light because I can't store any more memory on my old notebook.

Appearance

I prefer Mint's green tone to Ubuntu's orange / purple. I also like the icons and fonts, so I thought I'd use Mint for a while. By the way, the desktop is "Mint-Y-Dark-Teal" and the icons are also "Teal".

Problem solved?

The old notebook + Ubuntu 18.04 LTS I was trying so far had the following two problems.

--The display on the external monitor via RGB is unstable (it cuts off or recovers without doing anything) --After a while after starting up, the wireless LAN is cut off even though there is no problem with the WiFi environment → For some reason, the wireless LAN adapter is not visible from the OS (it seems that a wpa_? Error has appeared)

I put in Mint to determine if this problem is due to the OS, whether the PC is old and not working or is broken.

And, although this article was created on the Mint side, during that time, the external monitor and wireless are working without problems, so the above two problems are likely to be caused by the OS (driver?), Not the PC itself. .. It may be solved by changing Ubuntu to 20.04LTS as well, but it seems that it will make the memory even more painful, so I will not do it.

App

The following apps have been introduced to bring them closer to Ubuntu.

--Google Chrome: Browser --Chromium: Browser --GParted: Partition operation --LibreOffice6.4.6: Office software (originally included) --Asunder: CD ripping --Lame: MP3 encoding --VLC: Media player --GIMP: Drawing --Pinta: Drawing --Brasero: CD / DVD writing --Wine: Windows application execution (manually inserted)

"Chromium" is dissatisfied with the new mechanism = Snap, and Mint has released it independently.

Miscellaneous feelings

――In my old memory, Linux for desktop = Ubuntu, but Linux Mint is suitable for desktop like Ubuntu and is lighter, so it feels very good for such an old notebook. ――It doesn't have to be Windows anymore, really