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thegrind
n00b
Joined: 22 Sep 2024
Posts: 6
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 Posted: Mon Oct 07, 2024 7:35 pm Post subject: 16K page kernel on a raspberry PI 5 |
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I followed the wiki page to install Gentoo a RPI5 but for some reason it's not using the 16k kernel. As uname -r returns 6.6.50-v8+
. I downloaded the stage 3 for arm64 openrc and modified the config.txt to load the dtoverlay=vc4-kms-v3d-pi5. I did the mkswap for 16k and it gave me errors so I had to remake it with 4K. I am running headless for kodi using gbm.
Everything works well. Wifi bluetooth networking. I can't figure out where I went wrong on the kernel and how to fix it. |
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Ralphred
Guru
Joined: 31 Dec 2013
Posts: 596
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| Posted: Mon Oct 07, 2024 8:35 pm Post subject: |
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Meh, Pi's be a law unto themselves.
What do your [insert prefix DuJour]*/cmdline.txt and [insert prefix DuJour]*/config.txt look like?
*Why [prefix DuYesterJour]/cmdline.txt and [prefix DuYesterJour]/config.txt aren't just fscking symlinks instead of a condescending lecture annoys me, and no "because fat" isn't an argument, it's the invalid excuse of a lazy peon**.
**Sorry, using Debian takes it toll... |
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pietinger
Moderator
Joined: 17 Oct 2006
Posts: 4936
Location: Bavaria
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thegrind
n00b
Joined: 22 Sep 2024
Posts: 6
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| Posted: Mon Oct 07, 2024 9:36 pm Post subject: |
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Thanks for the help.
Here is my cmdline.txt
| Code: | | dwc_otg.lpm_enable=0 console=tty1 root=/dev/mmcblk0p3 rootfstype=ext4 rootwait |
Here is my config.txt
| Code: |
# have a properly sized image
disable_overscan=1
# Enable audio (loads snd_bcm2835)
dtparam=audio=on
# Enable DRM VC4 V3D driver
dtoverlay=vc4-kms-v3d-pi5 |
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pingtoo
Veteran
Joined: 10 Sep 2021
Posts: 1153
Location: Richmond Hill, Canada
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| Posted: Mon Oct 07, 2024 10:32 pm Post subject: |
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thegrind,
| Quote: | | I followed the wiki page to install Gentoo a RPI5... |
Which wiki page? |
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thegrind
n00b
Joined: 22 Sep 2024
Posts: 6
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flysideways
Guru
Joined: 29 Jan 2005
Posts: 475
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| Posted: Tue Oct 08, 2024 1:18 am Post subject: |
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I followed this one last week, Raspberry Pi Install Guide to install Gentoo on this Pi 5.
My cmdline.txt for that Pi is
| Code: | | dwc_otg.lpm_enable=0 console=tty root=PARTUUID=c22a8b8b-0dda-47c7-b0c1-07a4c3ddb852 rootfstype=ext4 rootwait cma=256M@256M net.ifnames=0 usbhid.mousepoll=0 |
I added the mousepoll part to fix my Razer mouse, I also used the root PARTUUID, otherwise it is as found in the guide.
The config.txt
| Code: |
# If using arm64 on a Pi3, select a 64 bit kernel
arm_64bit=1
# have a properly sized image
disable_overscan=1
# Enable audio (loads snd_bcm2835)
dtparam=audio=on
# Enable DRM VC4 V3D (graphics) driver
dtoverlay=vc4-kms-v3d
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I did a Pi 5 install back in February on another. That one and this one both are, | Code: | ~ # uname -r
6.6.51-v8-16k+ |
The first few lines of dmesg are; | Code: | [ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x414fd0b1]
[ 0.000000] Linux version 6.6.51-v8-16k+ (dom@buildbot) (aarch64-linux-gnu-gcc (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0, GNU ld (GNU Binutils for Ubuntu) 2.38) #1799 SMP PREEMPT Thu Sep 26 16:13:21 BST 2024
[ 0.000000] KASLR enabled
[ 0.000000] random: crng init done
[ 0.000000] Machine model: Raspberry Pi 5 Model B Rev 1.0 |
I don't remember having any issue on either one when creating the correct swap using | Code: | | root #mkswap --pagesize 16384 /dev/sdi2 |
as found in the guide I listed.
Does your dmesg identify the device as a Pi 5? I thought the magic to select the kernel happened in the gpu during boot and it needed the correct swap partition to boot the correct kernel. But, that could be verified by someone other than me.
Best Regards. |
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flysideways
Guru
Joined: 29 Jan 2005
Posts: 475
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| Posted: Tue Oct 08, 2024 1:23 am Post subject: |
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Additionally, I have an M1 (Apple Silicon arm) MacBookPro, and used that with Gentoo in a vm to write to the sd card, and, sneak in a chroot to emerge all of my software after the regular install.
The one in February, I installed all of it natively to an nvme booted from RPIos in the sd card slot. |
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flysideways
Guru
Joined: 29 Jan 2005
Posts: 475
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| Posted: Tue Oct 08, 2024 1:53 am Post subject: |
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I think you can just use swapoff, and then try the | Code: | | root #mkswap --pagesize 16384 /dev/xxx |
command on your swap partition. After that then swapon and reboot. |
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Gentoo on ARM
