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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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What to know before Dual Booting Windows + Linux? (lemmy.ca)

submitted 10 months ago* (last edited 10 months ago) by [email protected] to c/[email protected]

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I'm looking to finally use Linux properly and I'm planning to dual boot my laptop. There's enough storage to go around, and while I'm comfortable messing around I'd rather not have to run and buy a new device before school while fixing my current one.

https://m.youtube.com/watch?v=VaIgbTOvAd0

This was the general guide I was planning to follow, just with KDE Plasma (or another KDE). I was going to keep windows the default, and boot into Linux as needed when I had time to learn and practice.

I assume it should be the near similar process for KDE Plasma?

I'm ok with things going wrong with the Linux install, but I'd like to keep the Windows install as safe as possible.

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[–] [email protected] 11 points 10 months ago* (last edited 10 months ago) (1 children)

I don't think that's the case anymore.

I just checked, the time in the UEFI BIOS is in UTC, yet both Linux and Windows 10 display the local time correctly as an offset to UTC. I didn't have to do anything special for that.

Edit:

So I looked a bit deeper into it, and this is apparently controlled by a registry key called RealTimeIsUniversal in [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation]. You can paste the text below in a .reg file and then import it to set the parameter:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation]
"RealTimeIsUniversal"=dword:00000001

I confirmed that this setting exists on my system, but I have no memory of ever manually setting this parameter. It's documented in the Arch wiki though, so it's possible that I did set it and forgot about it.

In any case, if you do a fresh Windows install and your time differs between Linux and Windows , this is what you should check.

[–] [email protected] 4 points 10 months ago (3 children)

It is with Windows 10 and Mint. I booted into Mint a few days ago, and when I switched back to Windows, the time was wrong.

Apparently it's easy to fix, but I keep forgetting while I'm in Mint >.<

[–] [email protected] 4 points 10 months ago (1 children)

See my edit.

[–] [email protected] 1 points 10 months ago

That's really helpful, thanks :)

[–] [email protected] 3 points 10 months ago (2 children)

You can also fix it by running the following command on your Linux machine:

timedatectl set-local-rtc 1 --adjust-system-clock

[–] [email protected] 2 points 10 months ago

You could but this as an autostart script:

cat > ~/.config/autostart/adjust-time &lt;

[–] [email protected] 2 points 10 months ago

Thank you :)

[–] [email protected] 1 points 10 months ago (1 children)

@Tippon @SpaceCadet you can set your system clock to UTC to fix the problem. Here’s a registry fix to tell Windows to use UTC.

https://uilton.com/kb/how-to-make-windows-store-time-in-utc/

[–] [email protected] 1 points 10 months ago

Brilliant, thank you :)