gentoo-kernel-6.18.12: Your /boot partition is not mounted

[3Nd_R1m]

I’m installing Gentoo on a UEFI system, and when I run

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emerge --config sys-kernel/gentoo-kernel

Portage prints the following messages and halts:

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 * Your /boot partition is not mounted
 * Please mount it and retry.
 * /boot not mounted
 * Your /efi partition was detected as being mounted.
 * Files will be installed there for gentoo-kernel to function correctly.
 * Assuming you do not have a separate /boot/efi partition.
 * Assuming you do not have a separate /boot/EFI partition.

Of course /boot is not mounted; I’m following the UEFI steps, which instruct me to mount /efi instead! From previous experience I know that gentoo-kernel supports UEFI systems, so why is it complaining this time?

Also, during the installation of gentoo-kernel and its dependencies, I received several warnings stating that no kernel source could be found in /usr/src/linux. Is that a problem? Why would the kernel installation process expect a kernel to already be installed!?

[Zucca]

I’m following the UEFI steps, which instruct me to mount /efi instead! From previous experience I know that gentoo-kernel supports UEFI systems, so why is it complaining this time?

The directory is kind of irrelevant. I don't have /efi and my /boot is ESP. ;)

Anyway, I think the default is to have ESP mounted at /efi and /boot may be a separate partition or not.

Do you want to place your kernel on

• ESP, along with UEFI loaders
• on a separate partition on /boot
• on root partition under /boot directory

?

Make sure your bootmanager/loader can access the partition where your kernel resides.

Also, during the installation of gentoo-kernel and its dependencies, I received several warnings stating that no kernel source could be found in /usr/src/linux. Is that a problem? Why would the kernel installation process expect a kernel to already be installed!?

That'll go away after you have installed your kernel.

[Nowa]

The check gets its information from /etc/fstab, do you have a /boot listed there?