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ARM – Vim3-Pro – with EFI and Fedora 33..

Adventures With Linux ™ Posted on January 5, 2021 by RGJanuary 5, 2021

Recently acquired one of the Khadas VIM3-Pro arm64 SoCs, and was impressed with the level of documentation available.. Unfortunately – as is so often the case – this was all relentlessly Ubuntu-focussed, with a semi-proprietary kernel based on the 4.X kernel tree.. At least the U-Boot version was fairly recent, and appeared to support EFI etc.. The … Continue reading →

Posted in aarch64, arm, ARM64, Fedora, Hacks, hardware, kernel, Linux / ARM, U-Boot, UEFI | Tagged arm64, efi, fedora 33, khadas, success, u-boot, vim3-pro | 1 Reply

Kernel – 5.9-rc6 – Rare Compile Fail!

Adventures With Linux ™ Posted on September 20, 2020 by RGSeptember 20, 2020

Kernel 5.9-rc6 has been released, and brief details are here:  http://lkml.iu.edu/hypermail/linux/kernel/2009.2/05870.html In a very rare occurrence, the kernel compile actually fails: …………………………….. CALL scripts/checksyscalls.sh CALL scripts/atomic/check-atomics.sh DESCEND objtool CHK include/generated/compile.h CC drivers/dax/super.o drivers/dax/super.c:325:6: error: redefinition of ‘dax_supported’ 325 | bool dax_supported(struct dax_device *dax_dev, struct block_device *bdev, | ^~~~~~~~~~~~~ In file included from drivers/dax/super.c:16: ./include/linux/dax.h:162:20: note: previous definition … Continue reading →

Posted in compilation, Hacks, kernel, Linux, NVIDIA, Opinion, VMware | Tagged inherited taint, kernel 5.9-rc6, nvidia 450.66 455.23.04, nvidia-uvm, patched, rare compile fail, revert dax patch, vmware 16 ok, workaround | 1 Reply

Fedora – Fun with ZRAM..

Adventures With Linux ™ Posted on September 4, 2020 by RGSeptember 4, 2020

Fedora 33 will be using ZRAM as standard for swap, rather than a partition or swapfile on disk.    I had no problem with this on a new F33 install (Odroid H2Plus) but after upgrading an existing Fedora 32 system it refused to initialise, and ‘/dev/zram0‘ did not exist.    Research revealed that the documentation for much of this … Continue reading →

Posted in alpha release, boot, Fedora, fix, Hacks, kernel, Linux, Opinion | Tagged /dev/zram0 missing, fedora 33, fix, old config, swap, upgrade, zram | Leave a reply

ARM64 – Fedora 33 Pre-release Kernel Boot Problem – and Workaround..

Adventures With Linux ™ Posted on August 26, 2020 by RGAugust 26, 2020

I have been testing Fedora 33 pre-release, and on x86_64 it seems relatively stable (usual caveats…) but on arm64 systems (Odroid N2 and Pi4) I found that after compiling a new kernel (5.8.3), the system booted, but login was impossible, and screen output was missing  (uart/console was OK). Kernels compiled with Fedora 32 all booted OK, and … Continue reading →

Posted in aarch64, ARM64, boot, compilation, Crash and Burn.., Fedora, Hacks, kernel, Linux / ARM, Odroid N2, Opinion | Tagged arm64, boot problem, cross-compile, fedora 33, kernel 5.8.3, login imposssible, modules not loading, timeout, workaround, x86_64 ok | Leave a reply

Kernel – 5.9-rc2 – NVIDIA Patches, Kernel Taint, and Wait for VMware 16..

Adventures With Linux ™ Posted on August 24, 2020 by RGAugust 24, 2020

Kernel 5.9-rc2 is out, and brief details of changes since -rc1 are here: http://lkml.iu.edu/hypermail/linux/kernel/2008.2/10710.html The patched VMware 16 prerelease versions of vmmon and vmnet compile OK, but any further tests will have to wait until the release of Workstation 16 in about a months time.. NVIDIA 450.66 can be made to (almost..) work, by applying the 5.9 … Continue reading →

Posted in compilation, Hacks, kernel, Linux, NVIDIA, Opinion, VMware | Tagged kernel 5.9-rc2 released, kernel taint with nvidia_uvm, mmu patch, nvidia 450.66 patch, until version 16 released, vmware runtime problem | 3 Replies

Kernel – 5.9-rc – Preliminary Testing – Breaks VMware and NVIDIA, and VirtualBox..

Adventures With Linux ™ Posted on August 10, 2020 by RGAugust 10, 2020

After all the excitement around the release of Kernel 5.8, I ran some tests on the work-in-progress git version (August 9th) of Kernel 5.9-rc1.   Obviously, there are more changes to come before RC1 is actually released.. NVIDIA 450.57 compile fails: ……………………. CC [M] /home/rgadsdon/NVIDIA-Linux-x86_64-450.57/kernel/nvidia-uvm/nv-kthread-q.o CC [M] /home/rgadsdon/NVIDIA-Linux-x86_64-450.57/kernel/nvidia-uvm/nv-kthread-q-selftest.o CC [M] /home/rgadsdon/NVIDIA-Linux-x86_64-450.57/kernel/nvidia-uvm/uvm8.o In file included from /home/rgadsdon/NVIDIA-Linux-x86_64-450.57/kernel/nvidia-uvm/uvm8.c:31: /home/rgadsdon/NVIDIA-Linux-x86_64-450.57/kernel/nvidia-uvm/uvm8_va_range.h: In … Continue reading →

Posted in alpha release, Hacks, kernel, Linux, NVIDIA, Opinion, VirtualBox, VMware | Tagged compile tests only, git version august 9th, interim tests, kernel 5-9rc, nvidia fails, vitrtualbox fails, vmmon fails | 4 Replies

VirtualBox – Latest Development Version Tests with Kernel 5.8 – Unstable..

Adventures With Linux ™ Posted on August 3, 2020 by RGAugust 4, 2020

I have been investigating alternatives, as VMware is currently a non-starter (literally..) with Kernel 5.8.. I installed the latest VirtualBox (6.1.97 r139689) from SVN (another blast from the past…) and managed – after some messing around – to get it to compile OK on my Fedora 32 test system with Kernel 5.8 (from kernel.org..)    I had … Continue reading →

Posted in Crash and Burn.., Fedora, Hacks, kernel, Linux, Opinion, VirtualBox, working | Tagged fedora guest ok, installs ok, Kernel 5.8, virtualbox 6.1.97r139689 | Leave a reply

ARM64 – 8GB Pi4 – Fun with Fedora..

Adventures With Linux ™ Posted on July 18, 2020 by RGJuly 18, 2020

My 8GB Raspbery Pi 4 finally arrived, and I was looking forward to trying Fedora 32 and KDE/Plasma on it, and comparing it to the Odroid N2 from a few months back.. ( http://rglinuxtech.com/?p=2689 ) The Fedora 32 aarch64 install is supposed to support the Pi 4 now, but the resulting sdcard image failed to boot, with … Continue reading →

Posted in aarch64, compilation, Crash and Burn.., Fedora, Hacks, KDE, kernel, Linux / ARM, new install, Raspberry Pi 4 | Tagged 8gb, aarch64, fedora 32, fedora install, hybrid, kde/plasma too slow, opensuse efi substitute, opensuse u-boot, raspberry pi 4, success | Leave a reply

Kernel – 5.8 Pre-testing.. Fix for NVIDIA. Problems with VMware Runtime.

Adventures With Linux ™ Posted on June 12, 2020 by RGJune 12, 2020

There is now an interim patch available, for NVIDIA 440.82 and Kernel 5.8, at https://gitlab.com/snippets/1986228 This should be applied as well as the 5.7 patch, and I have tested this with pre-release Kernel 5.8-git version from June 12th, and it works OK.    Note that this is an interim patch, and may be updated once 5.8-rc1 is released.. … Continue reading →

Posted in fix, Hacks, kernel, Linux, NVIDIA, Opinion, VMware | Tagged kernel 5.8pre-release, nvidia 440.82 patch available, vmware-modconfig segfaults, workarounds | 1 Reply

GCC – Fun with GCC 10, and the Kernel, NVIDIA, VMware..

Adventures With Linux ™ Posted on February 21, 2020 by RGFebruary 21, 2020

I have updated some test systems (x86_64 and aarch64) to pre-beta Fedora 32, which now includes GCC 10: $ gcc –version gcc (GCC) 10.0.1 20200216 (Red Hat 10.0.1-0.8) There have been a couple of problems with kernel compilation, but in each case there was already a patch/workaround available.. https://www.spinics.net/linux/fedora/fedora-arm/msg13193.html and https://lkml.org/lkml/2020/1/29/494 The most serious problem was a … Continue reading →

Posted in alpha release, compilation, Fedora, gcc, Hacks, kernel, Linux, NVIDIA, Opinion, VMware | Tagged fedora 32, gcc10, kernel 5.6-rc, kernel fixes, nvidia, pre-beta, testing, vmware | Leave a reply

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