How to update the Kernel?

[DarthKeizer]

Hi guys,
I have tried everything i know of:

• Update the repo to jammy and update full-upgrade

• sudo ubuntu-mainline-kernel.sh -i , this script iver tried

• apt-cache search linux-image and installing the latest from there.

screenshot below:

[DarthKeizer]

Our latest official Kernel version is the same 4.9.312 as you found to support the GPU & VPU HW acceleration.
https://wiki.odroid.com/odroid-c4/os_im ... l/20220705

If you don't need the HW VPU (4K video playback) acceleration, freshly flash @tobetter's Ubuntu 22.04 image which supports the upstream Kernel 5.18 since Kernel updating path from 4.9 to 5.1x is not available.
viewtopic.php?f=52&t=44177

[DarthKeizer]

Our latest official Kernel version is the same 4.9.312 as you found to support the GPU & VPU HW acceleration.
https://wiki.odroid.com/odroid-c4/os_im ... l/20220705

If you don't need the HW VPU (4K video playback) acceleration, freshly flash @tobetter's Ubuntu 22.04 image which supports the upstream Kernel 5.18 since Kernel updating path from 4.9 to 5.1x is not available.
viewtopic.php?f=52&t=44177

Okay so just download the 22.04 and flash it and im good to go?

[DarthKeizer]

Our latest official Kernel version is the same 4.9.312 as you found to support the GPU & VPU HW acceleration.
https://wiki.odroid.com/odroid-c4/os_im ... l/20220705

If you don't need the HW VPU (4K video playback) acceleration, freshly flash @tobetter's Ubuntu 22.04 image which supports the upstream Kernel 5.18 since Kernel updating path from 4.9 to 5.1x is not available.
viewtopic.php?f=52&t=44177

How can I upgrade to 22.04 from my 20.04 build?

[mad_ady]

You can do sudo do-release-upgrade -d, but you may need to manually re-enable hardkernel's repos after the upgrade.

[DarthKeizer]

You can do sudo do-release-upgrade -d, but you may need to manually re-enable hardkernel's repos after the upgrade.

Thanks, sorry for being such a noob!. Where are those repos located at, so i can copy and paste?

[mad_ady]

After the upgrade you'll need to update the files in /etc/apt/sources.list.d/*. Uncomment the lines containing "jammy" and run sudo apt-get update; sudo apt-get dist-upgrade to finish.

[HWAM]

I have Odroid N2+ with hardkernel image Ubuntu Mate 22.04. Just the regular image on the Odroid site.

Kernel 4.9.

How can I update to kernel to run docker? At least 4.15 or 4.19 I guess.

[mad_ady]

Kernel 4.9 should support Docker. Make sure you've updated sudo apt-get dist-upgrade, and run the script that checks compiance with docker features.

Upgrading to tobetter's mainline kernel build is more difficult from the stock image and it's not recommended/documented (might imply changes in uboot too)

[K33pSm1l1ng]

Kernel 4.9 should support Docker. Make sure you've updated sudo apt-get dist-upgrade, and run the script that checks compiance with docker features.

Upgrading to tobetter's mainline kernel build is more difficult from the stock image and it's not recommended/documented (might imply changes in uboot too)

Sadly docker doesn't support the Ubuntu 22.04 Image. Because Ubuntu 22.04. uses "cgroup v2", which is used by default by Docker. "Enabling cgroup v2 for containers requires kernel 4.15 or later. Kernel 5.2 or later is recommended."
And I found no solution to change that setting for the kernel. It took me several hours to find that out, but I'm by far no expert to things like that.

So there are only a few options available as workaround:

• you could use the way more outdated Ubuntu 20.04. image

• instead of Docker you could try e.g. podman but it isn't fully supported for NextCloud, if you want to use it

• you could use an Armbian Image https://www.armbian.com/odroid-n2/ which is more up2date and uses Kernel 6.1 in current version
  -> That's what I will try out (found it as a recommendation too, here viewtopic.php?t=40093 )

[mad_ady]

Hmm, I wasn't aware of that problem. Internet searches suggest adding systemd.unified_cgroup_hierarchy=0 to the kernel command line (boot.ini on the stack image).

Otherwise, tobetter also ships modern kernels for c4 in his netboot images.

[K33pSm1l1ng]

Hmm, I wasn't aware of that problem. Internet searches suggest adding systemd.unified_cgroup_hierarchy=0 to the kernel command line (boot.ini on the stack image).

Otherwise, tobetter also ships modern kernels for c4 in his netboot images.

Yeah found that solution as well but I didn't managed to make it running. Docker says here:

Code: Select all

 sudo grubby --update-kernel=ALL --args="systemd.unified_cgroup_hierarchy=1" 

But the grubby command doesn't exists and the other solution:

If grubby command is not available, edit the GRUB_CMDLINE_LINUX line in /etc/default/grub and run sudo update-grub.

didn't worked as well.

Btw. you need maybe to use the "Boot Select Switch" to boot ARMBIAN

[mad_ady]

Right. Those commands are more intel oriented. On the Hardkernel Ubuntu image you'd need to edit /media/boot/boot.ini and add that option I mentioned to the bootargs line. Then, after reboot check that it was applied with cat /proc/cmdline