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I recently installed gentoo. I followed the guide for amd64 installation. I double-checked if the /boot was mounted before I installed the bootloader (GRUB). I chose the GPT+UEFI option for partition and boot. I have manually configured the kernel and added built-in support for (SATA, SCSi, ATA, ext4, ACHI) driver modules corresponding to the necessary drivers as well. But there is kernel panic on boot.

Here is my grub.cfg

Here is my /etc/fstab

Here are the drives on grub command line

Here is the kernel panic message

It is my understanding that the root partition is not identified. How do I fix this?

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  • Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking.
    – Community Bot
    Commented Nov 14, 2022 at 8:44
  • Usually you need an initrd / initramfs that contains the driver modules that are required for / mounting, unless all the required drivers are built as builtin. Examples of drivers required are ahci, sd (scsi disk), ext4 and their dependencies.
    – Tom Yan
    Commented Nov 14, 2022 at 10:42
  • @TomYan All the driver modules are built as built-in because I have configured the kernel manually (including the ones you have specified). Since, I have configured the kernel manually I have not used an initramfs.
    – Sai Chaithanya
    Commented Nov 14, 2022 at 13:25
  • Evidently, you kernel is missing the required drivers to access its root filesystem. Did you enable all the appropriate kernel options?
    – Daniel B
    Commented Nov 14, 2022 at 13:44
  • @DanielB Thanks. I did miss out the hyper-V specific drivers.
    – Sai Chaithanya
    Commented Nov 19, 2022 at 16:51

1 Answer 1

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It turns out that I had not enabled Hyper-V Specific driver support (specifically the Hyper-V client driver) in the kernel. Following the Gentoo Hyper-V guide resolved the issue.

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    – Community Bot
    Commented Nov 19, 2022 at 17:00

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