The crux of the problem: which partition scheme you select determines whether the SD HC card will be bootable by a Raspberry Pi Zero 2 W. You cannot assume that because the card is bootable in a Raspberry Pi 4B, that it will also boot in the Raspberry Pi 2 W. Background There are at least two partition schemes: master boot record (MBR) - introduced in 1983 by Microsoft for PC DOS. Source Support added in 1996 for logical block addressing (LBA). GUID Partition Table - supersedes MBR Source The GUID Partition Table has become the default standard in Gentoo Linux. The problem is that if you ..read more

Good news. Gentoo was the first 64bit Pi OS that worked well, thanks to Sakaki. This will make it a bit easier for us plebs. But 20GB is not much these days. Wonder if my 200 GB of LLM's will run on Gentoo? One day those LLMs may go Binary instead of FP16 Statistics: Posted by Gavinmc42 — Wed Mar 27, 2024 12:53 pm ..read more

I wonder if there are binary packages for Raspberry Pi 4/5. The way Gentoo's USE flags work mean Gentoo repository would ideally need to have more packages than atoms in the known universe to always allow downloading binary packages for only different configurations of USE flags but for at least amd64 there are few common versions of "stable" packages for few different system configurations and if user has different USE flags they need to either change them back, ignore and install binary package anyways or build from sources. On amd64 the situation improves over time but still even keeping t ..read more

I had indicated I would update this topic with an analysis. Unfortunately, I'm finding the documentation and variety of platforms to be overwhelming to be able to accurately analyze why the differences and where the differences are documented. I used Linux's "script" to preserve the builds of the SD HC, one using procedures outlined in the Gentoo Wiki referenced above, and the other using a very helpful guide. I will provide the session of both so anyone interested can compare. I can only say at this time that using a partition method of designating partition 1 as the "boot" partition seemed t ..read more

Interim Update: I determined the problem: It's about how you configure the partitions and you have to make the boot partition "bootable". The Gentoo Guide I referred to will not work for cards destined for a Pi Zero 2 W. I'll reply in the next day or two with a comprehensive explanation that I think will be helpful for those building for Raspberry Pi 4B and Pi Zero 2 W. Statistics: Posted by JohnLPoole — Thu Feb 15, 2024 3:32 am ..read more

I copied over my three partitions: 1) boot, 2) home, and 3) / to a 32GB SansDisk that has worked with other images (generated by the GenPi64 project) and the new card has the same problems: on a Rpi4, it works, on a Pi Zero 2 W, it does not. One thing I noticed is during the creation of my partitions, I received a warning: The device contains "dos" signature and it will be removed by the write command. 2024-02-14_16-59.png Does the "dos" signature play a role in the readability of an SD HC card? Statistics: Posted by JohnLPoole — Thu Feb 15, 2024 1:57 am ..read more

I have a SanDisk 128GB SDHC lightroom_2024-02-14_15-16-07.jpg where I have installed Gentoo Linux Code: pigentest1 /home/jlpoole # uname -a Linux pigentest1 6.6.14-v8+ #1727 SMP PREEMPT Wed Jan 31 12:22:26 GMT 2024 aarch64 GNU/Linux pigentest1 /home/jlpoole # I have been building my Gentoo instances on a Raspberry Pi 4B (8 MB) and will deploy my image to several Raspberry Pi Zero 2 W for a project involving multiple Pi Zeros gathering data in our neighborhood. I have been successfully using this paradigm of building out the image on a more powerful Raspberry Pi and then deploying ..read more

Yes, software decoding on Pi 5 is better. The issue was that, by default, hardware decoding was attempted with both h264 or VP9 codecs. Playback it's OK with mpv, also. What I still find strange is: same video VP9 1080@60 play smooth at HD - 1920x1080 resolution, few frame drops at 2K - 2650x1440 and is horrible at 4K 3840x2160 screen resolution. Does not matter if video are playing in window or full screen. Statistics: Posted by costel78 — Mon Jan 22, 2024 12:31 pm ..read more

Oh, I forgot about this. So, smooth video playback waiting for Pi 6. h264 decoding support missing it's strange, as it's still a common standard. But, anyway, video playback on Raspios it's still much better, than on my Gentoo. The software-based H264 decoder on Pi 5 is better than the HW one on the PI4. It can cope with more formats and larger frames. You should get smooth playback up to 1080p60 at least (4kp30 possible I believe) when using VLC or Kodi. Bit less performant in browsers because of all the extra layers of SW that need to be traversed. Statistics: Posted by jamesh — Mon Jan 22 ..read more

Unfortunately, my level of expertise is not even close to Sakaki. She was the expert. It would be turning into a blind leading another. Statistics: Posted by costel78 — Mon Jan 22, 2024 11:21 am ..read more