[SOLVED] no suitable video mode found| booting in blind mode

[ngahy]

Hello everyone.

I just installed Gentoo on my machine following the
Handbook and this
guide
for encrypted disk. Everything worked fine untill booting the installed
OS.

First I was stuck on

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Loading initial ramdisk ... 

As the other guide says:

When using a LUKS passphrase and there is no visible prompt after loading the
initramfs, try typing the passphrase. If this continues loading try Grub
without gfxterm/ in text-only mode. Depending on the BIOS it might help to
boot legacy first to check if there's a prompt at all.

So I decided to run GRUB2 on text-mode only. Here is an extract of
/etc/default/grub

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GRUB_DISTRIBUTOR="Gentoo"
GRUB_CMDLINE_LINUX="dolvm crypt=UUID=...
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_TERMINAL=console
GRUB_GFXPAYLOAD_LINUX=text

Then, I have the two following lines after Loading initial ramdisk:

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error: nosuitable video mode found
Booting in blind mode

I tried adding insmod all_video in /boot/grub/grub.cfg but I get the same
thing.

I looked at similar questions in the gentoo and arch forums but I still have
this issue.

Note that CONFIG_FRAMEBUFFER_* features are all enabled in my
configuration. Same with CONFIG_EFI_* features.

Do you know where the issue comes from and how to solve it?

Thank you

[Goverp]

IIUC, the messages

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error: nosuitable video mode found
Booting in blind mode

come from GRUB, so your kernel configuration is irrelevant at this point.
I came across this Ubuntu item that might help; or not.

[ngahy]

IIUC, the messages

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error: nosuitable video mode found
Booting in blind mode

come from GRUB, so your kernel configuration is irrelevant at this point.
I came across this Ubuntu item that might help; or not.

Added the same lines in my grub.cfg : I do not have the message about Booting in blind mode, however, it is stuck on Loading initial ramdisk

I added some precision on the kernel configuration because I came across some forums where people asked the kernel configuration for the same issue

[ngahy]

I tried to install again with the same guide and I am still stuck on Loading initial ramdisk

Here are some materials:
.config : https://pastebin.com/hgPa3sJ8
grub.cfg: https://pastebin.com/LtZd78eW
blkid:

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/dev/loop0: TYPE="squashfs"
/dev/nvme0n1p1: UUID="6F07-FA00" BLOCK_SIZE="512" TYPE="vfat" PARTLABEL="grub" PARTUUID="0824cffe-505d-476f-a5bd-7c5f52bd442c"
/dev/nvme0n1p2: UUID="EDCA-2FF9" BLOCK_SIZE="512" TYPE="vfat" PARTLABEL="boot" PARTUUID="8aa18b8e-f348-4771-85ea-80c793238e40"
/dev/nvme0n1p3: UUID="b2670a94-041e-4133-8dc9-58c6278384a0" TYPE="crypto_LUKS" PARTLABEL="lvm" PARTUUID="cc58e84a-6469-4ce8-9716-1336fe3bc923"
/dev/sda1: BLOCK_SIZE="2048" UUID="2021-08-08-17-56-45-97" LABEL="Gentoo amd64 20210808T170546Z" TYPE="iso9660" PTUUID="7057d8c5" PTTYPE="dos" PARTUUID="7057d8c5-01"
/dev/sda2: SEC_TYPE="msdos" LABEL_FATBOOT="GENTOOLIVE" LABEL="GENTOOLIVE" UUID="ADDC-CDE8" BLOCK_SIZE="512" TYPE="vfat" PARTUUID="7057d8c5-02"
/dev/mapper/lvm: UUID="ZZBdD3-nV0X-Xc0W-Mh3l-exlY-fY9C-kayrGc" TYPE="LVM2_member"
/dev/mapper/vg0-root: UUID="133177fa-24fa-4a71-a37d-59a1743460a6" BLOCK_SIZE="4096" TYPE="ext4"
/dev/mapper/vg0-var: UUID="18dd3474-5b22-4cca-8c13-28022f4a802d" BLOCK_SIZE="4096" TYPE="ext4"
/dev/mapper/vg0-home: UUID="d8aba8b6-94c1-466c-bc95-8a778380223c" BLOCK_SIZE="4096" TYPE="ext4"

lspci -nk: https://pastebin.com/HUGPE0nr

[Goverp]

OK, I think the reason your GRUB graphics mode doesn't work is it's trying to load fonts etc. from within the LVM on the LUKS volume, and I think at that point they don't exist. I could be wrong - I don't know how clever GRUB is, but IIUC your setup expects your linux kernel to handle LUKS and LVM, so GRUB needn't be involved.

(The line

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search --no-floppy --fs-uuid --set=root --hint='lvmid/icUlx2-s4O2-Kjqk-5BD7-I2pf-SnTW-ZJfOoH/7lIvQf-0h0G-5vqT-Xxdb-jzd1-CATz-mvLV1F'  133177fa-24fa-4a71-a37d-59a1743460a6

)

It should now be working in text mode, but grub.cfg still says:

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terminal_output gfxterm

so the change to GRUB_TERMINAL=console doesn't seem to have taken effect. Did you redo grub-mkconfig?

I'm assuming /dev/nvme0n1p2 has a partition containing both /vmlinuz-5.10.52-gentoo-x86_64 and /initramfs-5.10.52-gentoo-x86_64.img (note, not in /boot on that disk. If you meant that, the linux/initrd lines would be /boot/vmlinux... or /boot/initramfs... and you'd need to adjust your GRUB settings.

Assuming none of the above help, you'll have to get help elsewhere, as you've built your kernel using genkernel, and I've no experience there. If nobody else chimes in on this thread, start a new one (as this one has been partly answered and other contributors will no longer see it as unanswered).

[larrys]

ngahy,
I use lvm on luks.
I think this line:

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GRUB_CMDLINE_LINUX="dolvm crypt=UUID=... 

should be:

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GRUB_CMDLINE_LINUX="dolvm crypt_root=UUID=...

Actually I can see in your grub.cfg where you must have fixed that later.

[ngahy]

ngahy,
I use lvm on luks.
I think this line:

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GRUB_CMDLINE_LINUX="dolvm crypt=UUID=... 

should be:

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GRUB_CMDLINE_LINUX="dolvm crypt_root=UUID=...

Actually I can see in your grub.cfg where you must have fixed that later.

That was one part of the problem. The other issue was FB_SIMPLE that was not enabled in the Kernel. I enabled it, recompiled the kernel and stuff... then rebooted and now it works