How can I dual boot with my Arch Linux installation?

BluePy_251 · n00b Joined: 14 Oct 2024 Posts: 8

I want to dual boot Gentoo with Arch, how can I dual boot?

Context: I want to install Gentoo and dual boot it with Arch, so I need help to see how can I do it.

Banana · Posted: Mon Oct 14, 2024 6:28 pm Post subject:

Hello and welcome to the forums.

You need a bootloader: https://wiki.gentoo.org/wiki/Bootloader and configure it: https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/Bootloader
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BluePy_251 · n00b Joined: 14 Oct 2024 Posts: 8

Thank you for the help

BluePy_251 · n00b Joined: 14 Oct 2024 Posts: 8

I installed yesterday, today I wake up to see that I couldn't boot it, and to my surprise, I had created /mnt/gentoo on my Arch partition, not on the desired Gentoo one, so I guess Arch auto-deleted all /mnt/gentoo files, because the directory was completely empty, idk if it was the guide I followed or smth, but I'm so confused because I even got a screenshot of a fastfetch done alongside Arch (since you can apparently use any OS to install)

Hu · Administrator Joined: 06 Mar 2007 Posts: 22541

If you used /mnt/gentoo as a mountpoint yesterday, and did not mount it today, then yes, it would be empty today, even if your files are intact. What is the output of blkid? On what partition did you create the root filesystem for Gentoo?

BluePy_251 · n00b Joined: 14 Oct 2024 Posts: 8

The supposed partition was dev/nvme0n1p5, but /mnt/gentoo was in nvme0n1p3, also blkid won't help because I stupidly removed the partitions.

BluePy_251 · n00b Joined: 14 Oct 2024 Posts: 8

Now after creating partitions again nvme0n1p5 is mounted to /run/media/<user>/<uuid>, why is that like it?

Hu · Administrator Joined: 06 Mar 2007 Posts: 22541

Are you asking about a behavior observed in the Arch Linux you used for the install, or observed in the resulting Gentoo install? /run/media is typically used by desktop environments that are trying to be "helpful."

BluePy_251 · n00b Joined: 14 Oct 2024 Posts: 8

Gentoo was removed, so it was Arch after creating with gparted, so I will just unmount it because I mounted it again to /mnt/gentoo, but, does it matter where /mnt/gentoo is?

BluePy_251 · n00b Joined: 14 Oct 2024 Posts: 8

Installing Gentoo again as I speak, this time reading the Handbook.

BluePy_251 · n00b Joined: 14 Oct 2024 Posts: 8

Nevermind, installation failed again, this time the initramfs didn't work, and I even enabled the flag in the file it said on the Handbook, and my battery died (unrelated but true), so, should I install it on the official ISO or should I just try again? Because my system started failing aftert removing the Gentoo partitions, even though I fixed it, it wasn't pleasant.

Hu · Administrator Joined: 06 Mar 2007 Posts: 22541

I recommend against running on battery while trying to install Gentoo. The time requirement will vary with your experience level and choices, but if you have many packages build from source, the demand on the battery could be significant.

Installing from Arch should be fine. If it was going to be a problem, it would have been apparent quite early on. Beyond that general bit of commentary, the best I can offer is that if you need help, you need to give us something with which we can work. Right now, your posts are too vague for us to understand what you did or what has gone wrong.