X86_64 – Fedora Upgrade on Intel ‘Apollo Lake’ System Disables EFI boot – and Fix

The Intel SOC AP42 system is not supported by Grub2-EFI, but boots using rEFInd (see article at http://rglinuxtech.com/?p=2021 ). I had hoped to prevent the ‘automatic’ (re)install of grub2-efi etc by masking the (minimal) grub installation of grubby etc. – … Continue reading

Kernel – GCC and ‘Retpoline’..

The recent summary of Kernel 4.15 mentioned the test for ‘compliant’ versions of GCC which fully support the retpoline mitigation, but only gave an example of non-compliance: With GCC 7.2: ~]$ cat /sys/devices/system/cpu/vulnerabilities/spectre_v2  Vulnerable: Minimal generic ASM retpoline I re-created … Continue reading

IA64 – The Gentoo saga.. Kernel 4.15-rc9

After a lot of patience(!) I now have a much-hacked version of Gentoo running on the HP RX2600, and have just updated the kernel to 4.15-rc9: ……………… [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical … Continue reading

Kernel – 4.15-rc7 Released – And there will be an -rc8..

Kernel 4.15-rc7 is out, and (brief) details of changes since -rc6 are here:  http://lkml.iu.edu/hypermail/linux/kernel/1801.0/04858.html.    The preamble is worth a read, as it pays tribute to the work done on the x86 PTI fixes.. Vmmon-patched VMware 14.1.0 is OK (see: https://github.com/mkubecek/vmware-host-modules/tree/workstation-14.1.0 … Continue reading

Kernel – Urgent Changes in Latest Versions, to Fix Intel CPU Security..

Apparently, there has been a major security defect discovered in Intel CPUs, and full details have been embargoed until early-January, but there is a comprehensive article in The Register, here:  https://www.theregister.co.uk/2018/01/02/intel_cpu_design_flaw/ The Linux Kernel devs have been working to provide … Continue reading

IA64 – An Exercise in Nostalgia..

Ever since I spent some considerable time promoting HP’s IA64 Linux systems, way back in the early-2000’s, I have always wanted one for myself, and I recently managed to acquire an RX2600 1U server for a very reasonable price, and … Continue reading

NVIDIA – 387.12 released – OK with Kernel 4.14/Intel, and AMD with SME Disabled..

NVIDIA driver 387.12 is out, and details are here:  http://www.nvidia.com/Download/driverResults.aspx/125399/en-us The driver compiles/loads OK with Kernel 4.14-rc3 on Intel, without any patches, and is OK with AMD as long as its Secure Memory Encryption feature is de-selected ( see http://rglinuxtech.com/?p=2070 … Continue reading

Kernel – 4.14-rc3 Released – OK with Patched VMware, Still has NVIDIA/AMD/GPL Problem..

Kernel 4.13-rc3 is out, and brief details of changes from -rc2 are here:  http://lkml.iu.edu/hypermail/linux/kernel/1710.0/00180.html VMware 14.0.0 – with the vmmon patch – still loads/runs OK(*), and NVIDIA is OK on Intel systems, but if the new AMD ‘Secure Memory Encryption‘ … Continue reading

VMware – Workstation 14 released – with a Gotcha..

VMware Workstation Pro 14.0.0 has been released – a bit earlier than expected – and it has a (potentially) nasty surprise for those with ‘older’ CPUs..   Release notes are here:  https://docs.vmware.com/en/VMware-Workstation-Pro/14.0.0/rn/workstation-14-release-notes.html I installed this on my test system without any … Continue reading

Hardware – UEFI Bios for Linux ‘Chromebook’

The original ‘SeaBios’ BIOS on my Acer c720p was a little clunky, so I decided to make the plunge and update it to a ‘proper’ Linux-friendly BIOS..    There is a known/good one available, but it is UEFI-only, so will … Continue reading