* One pitfall specific to Pi 4 is that fake KMS with VC6 requires a very recent build of Mesa, so an initial workaround is to edit config.txt to switch to legacy mode. Then continue to install more arm64 programs or run them inside the chroot: $ glxgears Sudo schroot -c pi64 - apt install -y mesa-utils sudo Sudo debootstrap -arch arm64 buster /srv/chroot/pi64 The last option has proven to be the most straightforward: sudo apt install -y debootstrap schrootĬat << EOF | sudo tee /etc/schroot/chroot.d/pi64 This can be done via static compilation, containers (LXC, systemd-nspawn), or chroot. Raspbian + 64-bit kernel), additional steps are necessary to run 64-bit programs. Note that for distros without an arm64 userland (e.g. Gentoo has been listed first for its active userbase and it was the first to provide fixes for accessing 4 GB of memory and V3D acceleration. This time it is actually possible to access the SoC camera in Fake KMS mode. In terms of quality and support, the situation with Raspberry Pi 4, Buster, kernel 4.19+, and 64-bit is better than it had been with Pi 3B+ and Stretch. Just like with a Pi 3 or Pi 2 v1.2, copying over the kernel and kernel modules from a working system will usually result in a configuration that boots *. The above list is by no means exhaustive because there have been many one-off 64-bit experiments ("Hey, it boots") starting shortly after Pi 4's release.Īfter all, the procedure for tweaking an existing distro into a 64-bit Pi 4 compatible one has not changed. Raspbian with 64-bit kernel (32-bit userland).There’s however one issue with using the 64-bit version of Chromium installed by default: the WidevineCDM library is not available making it impossible to play streaming video from premium services such as Netflix or Disney+.As of September 2019, the following 64-bit operating systems run on a Raspberry Pi 4: But with the first stable release, video acceleration works through Chromium and VLC, GPU acceleration works through Mesa, and hopefully, some of the performance regressions are resolved, so it can perform more or less as well, or in some cases better, than the 32-bit version. When I tested Raspberry Pi OS 64-bit on Raspberry Pi 4 in June 2020 I actually noted some performance regressions against Raspberry Pi 32-bit OS, and at the time there were some known issues such as the lack of hardware video decoding in VLC and Chromium. Some of the main reasons to finally release a 64-bit version include improved software compatibility with many closed-source applications only available for arm64, and some open-source ones not fully optimized for the armhf port, some performance benefits, and the ability for a process to make use of the full 8GB RAM, removing the 3GB limit when using LPAE (Large Physical Address Extension) on 32-bit operating systems. The Raspberry Pi Foundation has now officially released Raspberry Pi OS 64-bit about two years after the first beta version was released.ĭespite some potential performance benefits from using 64-bit code instead of 32-bit, the Raspberry Pi Foundation has resisted moving too quickly to a 64-bit OS because if it would create two separate worlds for their earlier 32-bit boards like Raspberry Pi 2 or Raspberry Pi Zero, and the newer 64-bit boards starting with Raspberry Pi 3 onwards and may confuse users besides the extra workloads.
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