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submitted 1 year ago by wtry@lemm.ee to c/linux@lemmy.ml
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[-] Molecular0079@lemmy.world 6 points 1 year ago

Nowadays you don't even need a /boot unless you're doing full disk encryption and I actually recommend keeping /boot on / if you're doing BTRFS root snapshots. Being able to include your kernel images in your snapshots makes rollbacks painlessly easy.

[-] mhz@lemm.ee 6 points 1 year ago

UEFI forum made it a requirement for motherboard constructors (hp, dell, msi...) to make their UEFI implementation to be able to at least read fat(12/16/32) filesystems. That is why you need a fat(12/16/32) partition flagged ESP (efi system partition) for holding your boot files.

So, I dont think you can do that unless you fall back to the old outdated BIOS or you have some *nix filesystem in your uefi implementation which I dont trust.

[-] Molecular0079@lemmy.world 1 points 1 year ago

You're only partially correct. /boot doesn't have to also be your EFI partition. In fact, most distros by default will separate the two, with the EFI partition mounted at /boot/efi and /boot being a separate ext4 based partition. My suggestion is that, if you're running BTRFS, you should merge /boot and / as one partition. You're still free to have a FAT32-based EFI mounted at /boot/efi or better yet /efi.

[-] yum13241@lemm.ee 1 points 1 year ago

I use systemd-boot and my mount point is /efi. /efi/EFI/ is where my bootloaders live.

If I rollback to an old enough snapshot, I have to reinstall my kernels from a chroot. It'd be cool if I could get around that.

[-] Molecular0079@lemmy.world 1 points 1 year ago
[-] yum13241@lemm.ee 1 points 1 year ago

Separate FAT32 part.

[-] mhz@lemm.ee 0 points 1 year ago

It has been a while since I used grub that I forgot tgat esp could only be used to hold the boot files residing on /boot/efi.

[-] Molecular0079@lemmy.world 2 points 1 year ago

I am guessing you're on systemd-boot? Yeah, one of the reasons why I hesitate to use it is how it requires EFI contain the kernel images. I am currently using refind.

[-] mhz@lemm.ee 1 points 1 year ago

Yeah, I'm on systemd-boot, it requires the kernel to be located in the ESP partition which I mount in /boot, resulting in cleaner setup.

[-] skullgiver@popplesburger.hilciferous.nl 1 points 1 year ago* (last edited 11 months ago)

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[-] Molecular0079@lemmy.world 1 points 1 year ago

I've heard that you have to put in your encryption pw twice if you do it that way no?

Out of curiosity, what's stopping you from shrinking the partition and adding a swap partition?

[-] skullgiver@popplesburger.hilciferous.nl 2 points 1 year ago* (last edited 11 months ago)

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this post was submitted on 11 Aug 2023
126 points (100.0% liked)

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