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JumboAg
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Joined: 03 Mar 2007
Posts: 205
Location: Dallas, TX
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 Posted: Sun Aug 27, 2023 1:59 am Post subject: ** SOLVED ** raspberry pi 4 wont boot with gentoo |
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I've done this install a dozen times before without issue, so I'm sure I'm just forgetting something but for the life of me I cannot figure out what.
Trying to setup a raspberry pi 4 using gentoo. I first boot it off a USB stick running stock raspian then do the modified handbook install method
I install the following 3 packages:
raspberrypi-firmware
raspberrypi-image
raspberrypi-sources
compile, install, etc... install dracut, create an initramfs.
After I'm done and reboot - no video at all. I can't tell if its booting or not. I'm not getting any networking so I assume no but cannot confirm 100%.
I've tried bypassing the raspberrypi-sources kernel by removing the kernel and initramfs lines from the config.txt to see if it'll just boot off the stock kernelX.img file in /boot.... same result.
I can provide additional info, setup etc if needed but hopefully from the above and the symptom (no video at all) someone can quickly tell me what I forgot to do.
Last edited by JumboAg on Sun Aug 27, 2023 5:03 pm; edited 1 time in total |
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ShorTie
Tux's lil' helper
Joined: 12 Feb 2006
Posts: 101
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| Posted: Sun Aug 27, 2023 10:52 am Post subject: |
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Why are you making a initramfs ??
Pi's do not need 1
You don't even need to compile a kernel.
What is in the 1st partition ??
Is the root variable correct in cmdline.txt ?? |
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JumboAg
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Joined: 03 Mar 2007
Posts: 205
Location: Dallas, TX
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| Posted: Sun Aug 27, 2023 3:00 pm Post subject: |
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1) because I use btrfs as my root filesystem since its on a micro sd card and that's configured as a module using the bcm2711_defconfig. I know I could go into menuconfig and change that but no reason to (which also is a justification for using raspberrypi-sources, the flexibility to do that). An initramfs should work fine. The Raspberry Pi does support them.
2) I have no desire to use the kernelX.img files included in raspberrypi-images. I want to use the kernel source code in raspberrypi-sources and compile it myself because to paraphrase the Mandalorian for gentoo purposes.... This is the way.
3) my /dev/mmcblk0p1 is my boot partition. Its currently fat32 but I have also used ext2 and ext4 over the various builds.
4) I believe so, same as always.
| Code: | | console=serial0,115200 console=tty1 root=/dev/mmcblk0p3 rootfstype=btrfs elevator=deadline fsck.repair=yes rootwait |
I'm going to try the older 5.15 kernel on another pi to see if its just something in the new 6.x sources. |
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ShorTie
Tux's lil' helper
Joined: 12 Feb 2006
Posts: 101
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| Posted: Sun Aug 27, 2023 3:07 pm Post subject: |
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If you want to build a kernel that bad, I'd surely build btrfs in.
Jusy makes life easier is all. |
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JumboAg
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Joined: 03 Mar 2007
Posts: 205
Location: Dallas, TX
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| Posted: Sun Aug 27, 2023 3:25 pm Post subject: |
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I do appreciate the suggestion, its just that I've had cause to use initramfs files for so long they're second nature to me at this point.
As mentioned in my original post, I have removed the calls to a custom kernel and initramfs in the config.txt file so it would try to load everything from raspberrypi-images, same result. I get no video and the system never seems to initialize.
I've got to be overlooking something obvious at this point. |
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Logicien
Veteran
Joined: 16 Sep 2005
Posts: 1555
Location: Montréal
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| Posted: Sun Aug 27, 2023 3:28 pm Post subject: |
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Why not to use the root=UUID= instead of the device file name of the root partition. On an Odroid-xu4 Linux do not boot with the device file name as root=. Confirm on ArchLinuxarm and Armbian.
_________________
Paul |
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pingtoo
Veteran
Joined: 10 Sep 2021
Posts: 1292
Location: Richmond Hill, Canada
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| Posted: Sun Aug 27, 2023 3:35 pm Post subject: Re: raspberry pi 4 wont boot with gentoo |
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| JumboAg wrote: | I've done this install a dozen times before without issue, so I'm sure I'm just forgetting something but for the life of me I cannot figure out what.
Trying to setup a raspberry pi 4 using gentoo. I first boot it off a USB stick running stock raspian then do the modified handbook install method
I install the following 3 packages:
raspberrypi-firmware
raspberrypi-image
raspberrypi-sources
compile, install, etc... install dracut, create an initramfs.
After I'm done and reboot - no video at all. I can't tell if its booting or not. I'm not getting any networking so I assume no but cannot confirm 100%.
I've tried bypassing the raspberrypi-sources kernel by removing the kernel and initramfs lines from the config.txt to see if it'll just boot off the stock kernelX.img file in /boot.... same result.
I can provide additional info, setup etc if needed but hopefully from the above and the symptom (no video at all) someone can quickly tell me what I forgot to do. |
It is not clear from your post which device you expect to boot from? USB or SD card?
isn't the raspberrypi-image will install stuff in to /boot? so your kernel build/installation was after raspberrypi-image? |
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JumboAg
Apprentice
Joined: 03 Mar 2007
Posts: 205
Location: Dallas, TX
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| Posted: Sun Aug 27, 2023 3:41 pm Post subject: Re: raspberry pi 4 wont boot with gentoo |
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| pingtoo wrote: | | JumboAg wrote: | I've done this install a dozen times before without issue, so I'm sure I'm just forgetting something but for the life of me I cannot figure out what.
Trying to setup a raspberry pi 4 using gentoo. I first boot it off a USB stick running stock raspian then do the modified handbook install method
I install the following 3 packages:
raspberrypi-firmware
raspberrypi-image
raspberrypi-sources
compile, install, etc... install dracut, create an initramfs.
After I'm done and reboot - no video at all. I can't tell if its booting or not. I'm not getting any networking so I assume no but cannot confirm 100%.
I've tried bypassing the raspberrypi-sources kernel by removing the kernel and initramfs lines from the config.txt to see if it'll just boot off the stock kernelX.img file in /boot.... same result.
I can provide additional info, setup etc if needed but hopefully from the above and the symptom (no video at all) someone can quickly tell me what I forgot to do. |
It is not clear from your post which device you expect to boot from? USB or SD card?
isn't the raspberrypi-image will install stuff in to /boot? so your kernel build/installation was after raspberrypi-image? |
Initial install - boot off a USB stick running stock raspian
Then do the modified handbook install for Rasberrypi on a microsd card.
Yes, I have the files for both the rasperrypi-image package and the installed kernel files from raspberrypi-sources in /boot (/dev/mmcblk0p1)
Following the model in "https://forums.gentoo.org/viewtopic-t-1157509-highlight-.html" which I've done several times. I'm sure I'm leaving something out and/or something minor changed in a package update between now and the last time I bricked a new pi that I'm overlooking. |
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pingtoo
Veteran
Joined: 10 Sep 2021
Posts: 1292
Location: Richmond Hill, Canada
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| Posted: Sun Aug 27, 2023 3:51 pm Post subject: |
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JumboAg,
Please share /boot content listing (from the SD card)
Please share /boot/config.txt (from the SD card)
Have you try to turn on your pi without SD card (or any other bootable device)? if you try do you get some information about your PI on the HDMI output? |
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JumboAg
Apprentice
Joined: 03 Mar 2007
Posts: 205
Location: Dallas, TX
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| Posted: Sun Aug 27, 2023 4:20 pm Post subject: |
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| pingtoo wrote: | JumboAg,
Please share /boot content listing (from the SD card)
Please share /boot/config.txt (from the SD card)
Have you try to turn on your pi without SD card (or any other bootable device)? if you try do you get some information about your PI on the HDMI output? |
| Code: | raspberrypi /usr/src/linux # ls -la /boot
total 119864
drwxr-xr-x 3 root root 8192 Dec 31 1969 .
drwxr-xr-x 1 root root 224 Aug 26 20:42 ..
-rwxr-xr-x 1 root root 28503 Aug 26 20:48 bcm2708-rpi-b.dtb
-rwxr-xr-x 1 root root 28822 Aug 26 20:48 bcm2708-rpi-b-plus.dtb
-rwxr-xr-x 1 root root 28182 Aug 26 20:48 bcm2708-rpi-b-rev1.dtb
-rwxr-xr-x 1 root root 28246 Aug 26 20:48 bcm2708-rpi-cm.dtb
-rwxr-xr-x 1 root root 28128 Aug 26 20:48 bcm2708-rpi-zero.dtb
-rwxr-xr-x 1 root root 29539 Aug 26 20:48 bcm2708-rpi-zero-w.dtb
-rwxr-xr-x 1 root root 30241 Aug 26 20:48 bcm2709-rpi-2-b.dtb
-rwxr-xr-x 1 root root 30148 Aug 26 20:48 bcm2709-rpi-cm2.dtb
-rwxr-xr-x 1 root root 30390 Aug 26 20:48 bcm2710-rpi-2-b.dtb
-rwxr-xr-x 1 root root 32142 Aug 26 20:48 bcm2710-rpi-3-b.dtb
-rwxr-xr-x 1 root root 32753 Aug 26 20:48 bcm2710-rpi-3-b-plus.dtb
-rwxr-xr-x 1 root root 30285 Aug 26 20:48 bcm2710-rpi-cm3.dtb
-rwxr-xr-x 1 root root 31318 Aug 26 20:48 bcm2710-rpi-zero-2.dtb
-rwxr-xr-x 1 root root 31318 Aug 26 20:48 bcm2710-rpi-zero-2-w.dtb
-rwxr-xr-x 1 root root 52682 Aug 26 20:48 bcm2711-rpi-400.dtb
-rwxr-xr-x 1 root root 52593 Aug 26 20:48 bcm2711-rpi-4-b.dtb
-rwxr-xr-x 1 root root 53202 Aug 26 20:48 bcm2711-rpi-cm4.dtb
-rwxr-xr-x 1 root root 38182 Aug 26 20:48 bcm2711-rpi-cm4-io.dtb
-rwxr-xr-x 1 root root 50504 Aug 26 20:48 bcm2711-rpi-cm4s.dtb
-rwxr-xr-x 1 root root 52476 Aug 26 20:52 bootcode.bin
-rwxr-xr-x 1 root root 116 Aug 26 20:54 cmdline.txt
-rwxr-xr-x 1 root root 228654 Aug 26 20:49 config-6.1.21_p20230405-raspberrypi-v8
-rwxr-xr-x 1 root root 228654 Aug 26 20:45 config-6.1.21_p20230405-raspberrypi-v8.old
-rwxr-xr-x 1 root root 1917 Aug 26 20:56 config.txt
-rwxr-xr-x 1 root root 3170 Aug 26 20:52 fixup4cd.dat
-rwxr-xr-x 1 root root 5398 Aug 26 20:52 fixup4.dat
-rwxr-xr-x 1 root root 8382 Aug 26 20:52 fixup4db.dat
-rwxr-xr-x 1 root root 8386 Aug 26 20:52 fixup4x.dat
-rwxr-xr-x 1 root root 3170 Aug 26 20:52 fixup_cd.dat
-rwxr-xr-x 1 root root 7265 Aug 26 20:52 fixup.dat
-rwxr-xr-x 1 root root 10229 Aug 26 20:52 fixup_db.dat
-rwxr-xr-x 1 root root 10229 Aug 26 20:52 fixup_x.dat
-rwxr-xr-x 1 root root 18359324 Aug 26 20:55 initramfs-6.1.21_p20230405-raspberrypi-v8.img
-rwxr-xr-x 1 root root 0 Aug 26 20:47 .keep
-rwxr-xr-x 1 root root 6810592 Aug 26 20:48 kernel7.img
-rwxr-xr-x 1 root root 7225232 Aug 26 20:48 kernel7l.img
-rwxr-xr-x 1 root root 8219600 Aug 26 20:48 kernel8.img
-rwxr-xr-x 1 root root 6466528 Aug 26 20:48 kernel.img
drwxr-xr-x 2 root root 24576 Aug 26 20:48 overlays
-rwxr-xr-x 1 root root 805436 Aug 26 20:52 start4cd.elf
-rwxr-xr-x 1 root root 3747240 Aug 26 20:52 start4db.elf
-rwxr-xr-x 1 root root 2250848 Aug 26 20:52 start4.elf
-rwxr-xr-x 1 root root 2998344 Aug 26 20:52 start4x.elf
-rwxr-xr-x 1 root root 805436 Aug 26 20:52 start_cd.elf
-rwxr-xr-x 1 root root 4819144 Aug 26 20:52 start_db.elf
-rwxr-xr-x 1 root root 2975104 Aug 26 20:52 start.elf
-rwxr-xr-x 1 root root 3721992 Aug 26 20:52 start_x.elf
-rwxr-xr-x 1 root root 3676160 Aug 26 20:49 System.map-6.1.21_p20230405-raspberrypi-v8
-rwxr-xr-x 1 root root 3676160 Aug 26 20:45 System.map-6.1.21_p20230405-raspberrypi-v8.old
-rwxr-xr-x 1 root root 22407680 Aug 26 20:49 vmlinuz-6.1.21_p20230405-raspberrypi-v8
-rwxr-xr-x 1 root root 22407680 Aug 26 20:45 vmlinuz-6.1.21_p20230405-raspberrypi-v8.old
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With NOTHING inserted, I do get the stock splash screen telling me it cant find anything. What's odd is if I put the sd card in, I dont even get that.
| Code: | $ cat config.txt
kernel=vmlinuz-6.1.21_p20230405-raspberrypi-v8
initramfs initramfs-6.1.21_p20230405-raspberrypi-v8.img
# For more options and information see
# http://rpf.io/configtxt
# Some settings may impact device functionality. See link above for details
# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1
# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
#disable_overscan=1
# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16
# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720
# uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1
# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1
# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2
# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4
# uncomment for composite PAL
#sdtv_mode=2
#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800
# Uncomment some or all of these to enable the optional hardware interfaces
#dtparam=i2c_arm=on
#dtparam=i2s=on
#dtparam=spi=on
# Uncomment this to enable infrared communication.
#dtoverlay=gpio-ir,gpio_pin=17
#dtoverlay=gpio-ir-tx,gpio_pin=18
# Additional overlays and parameters are documented /boot/overlays/README
# Enable audio (loads snd_bcm2835)
dtparam=audio=on
[pi4]
# Enable DRM VC4 V3D driver on top of the dispmanx display stack
dtoverlay=vc4-fkms-v3d
max_framebuffers=2
[all]
#dtoverlay=vc4-fkms-v3d
arm_64bit=1
dtparam=krnbt=on
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pingtoo
Veteran
Joined: 10 Sep 2021
Posts: 1292
Location: Richmond Hill, Canada
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| Posted: Sun Aug 27, 2023 4:42 pm Post subject: |
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I can't spot anything wrong from your /boot and config.txt. So likely we will need serial console in order to debug this.
| JumboAg wrote: | | With NOTHING inserted, I do get the stock splash screen telling me it cant find anything. What's odd is if I put the sd card in, I dont even get that. |
This is expected. I just want to confirm that hardware is not broken.
With serial console we can see if the specified kernel/initramfs load successful or not. If load successfully we know it is kernel configuration issue, if not it is likely the firmware on the SD card having problem.
Have you try to comment out the "kernel=..." line in config.txt then boot? this will test firmware boot sequence. it should load "kernel.img" which should give kernel boot messages on HDMI output. don't worry about Linux boot failure, it is expected since your initrd dose not match the "kernel.img" and likely your rootfs also not match. |
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JumboAg
Apprentice
Joined: 03 Mar 2007
Posts: 205
Location: Dallas, TX
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| Posted: Sun Aug 27, 2023 5:02 pm Post subject: |
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sigh... just shoot me now. Told you guys it was something stupid I was overlooking. Didn't think I'd do something THIS stupid though.....
What is wrong with the picture below 
| Code: | Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x00000000
Device Boot Start End Sectors Size Id Type
/dev/mmcblk0p1 2048 2099199 2097152 1G 83 Linux
/dev/mmcblk0p2 2099200 35653631 33554432 16G 82 Linux swap / Solaris
/dev/mmcblk0p3 35653632 499744767 464091136 221.3G 83 Linux
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Fixed... and solved.... |
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Gentoo on ARM
