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Adventures With Linux ™

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Disks – Not so S.M.A.R.T. After All?

Adventures With Linux ™ Posted on December 1, 2021 by RGDecember 1, 2021

More problems with severe disk performance degradation, but SMART still shows the disc as ‘OK’.. This has now occurred three times over the last 2 years or so, with 1TB and 2TB disks that were around 4+ years old (in continuous use..).. The contents were still accessible, but data transfer was extremely slow – around 250KiB/s to … Continue reading →

Posted in Crash and Burn.., hardware, Linux | Tagged data xfer very slow, disk fail, read error, smart shows ok, write error | 1 Reply

ARM64 – Pi4 – Finally, a fix for the USB Issues..

Adventures With Linux ™ Posted on September 3, 2021 by RGSeptember 3, 2021

I had spent far too much time trying to solve the Pi4 USB conundrum ( see https://rglinuxtech.com/?p=2922 ) but did recently find that the 5.14-rc kernels enabled the USB3 hub, although USB2 still failed to function.    I then updated u-boot to the ‘latest’ version, and now everything (finally..) works as it should, again..: Updated u-boot to latest … Continue reading →

Posted in aarch64, compilation, fixed, hardware, Linux, Linux / ARM, Opinion, Raspberry Pi 4, U-Boot | Tagged fixed, kernel 5.14, raspberry pi 4, update to latest u-boot, usb problems | Leave a reply

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

Ethernet – e1000e – The Saga Continues..

Adventures With Linux ™ Posted on January 13, 2020 by RGJanuary 13, 2020

After more testing, it appears that there is still a problem with the Intel e1000e driver and some – but not all – supported NICs.. I have several ex-HP systems that have Intel NICs, and some have more than one.   The HP Z820 has two (different models..): $ lspci |grep Eth 00:19.0 Ethernet controller: Intel Corporation 82579LM … Continue reading →

Posted in Ethernet, Fedora, hardware, Intel, kernel, Linux, Network, Opinion, some systems ok | Tagged constant up/down, e1000e, ethernet, intel, problems, revert patch, some nics ok, workaround | Leave a reply

Ethernet – Intel e1000e OK with some Kernel 5.4 Systems, but not all?

Adventures With Linux ™ Posted on November 24, 2019 by RGNovember 24, 2019

After updating my main HP Z820 system to Kernel 5.4, I found that the previous Intel e1000e Ethernet problem I had encountered on my test system with Kernel 5.4-rc6 seemed to have reappeared. (see http://rglinuxtech.com/?p=2632 ). But – this time, two of my systems with e1000e drivers were OK, but the third – the HP Z820 – … Continue reading →

Posted in Ethernet, hardware, Intel, kernel, Linux, Network, Opinion, patches | Tagged ethernet, intel e1000e, kernel 5.4, problems, revert patch, some systems ok, workaround | Leave a reply

New Install – Dual-Boot, Serial Console, Intel Ethernet Issues – Fixed..

Adventures With Linux ™ Posted on February 18, 2019 by RGFebruary 18, 2019

Setting up an old HP8000 desktop small-form-factor system as a crash-and-burn test system, with dual-boot Fedora 29 and Windows 7, on separate drives. First slight gotcha with the Fedora install: The installation utility shows the two disks, the first of which has Windows 7 (sda) and the second – additional – was for the Fedora Linux install … Continue reading →

Posted in Crash and Burn.., dual-boot, Ethernet, Fedora, fix, fixed, grub, Hacks, hardware, Intel, kernel, Linux, linux install, Opinion, quirks, Win 7 | Tagged dual-boot, fedora, fixed, intel ethernet, linux, new install, serial console port, win7 | Leave a reply

PA-RISC – Back to the Future (Again..)

Adventures With Linux ™ Posted on August 8, 2018 by RGAugust 8, 2018

As part of my quest to test Linux on more obscure/historical hardware, and given that the theme was ‘HP’ after my perilous foray into the world of Linux on IA64, I have now acquired (eBay!) an ‘inexpensive’ PA-RISC system – HP 9000/785 C3700 – after upgrading from an older C3000, and adding some more up-to-date IO cards.. … Continue reading →

Posted in Debian, Hacks, hardware, HPPA, Linux, Opinion, PA-RISC, upgrades | Tagged c3700, debian, hardware, hp9000, install, linux, pa-risc, upgrade | Leave a reply

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

Adventures With Linux ™ Posted on January 2, 2018 by RGJanuary 3, 2018

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 a workaround, as – apparently – there is no other practical solution: https://lkml.org/lkml/2017/12/4/709 The article does hint … Continue reading →

Posted in hardware, Intel, kernel, Linux, Opinion, Performance, VMware, X86_64 | Tagged fix with kernel mods, intel cpus, kernel, linux, security flaw | Leave a reply

SCSI – Adding and Removing Disk, Without Reboot..

Adventures With Linux ™ Posted on December 23, 2017 by RGDecember 23, 2017

Many aeons ago, I used to have SCSI disks on my ancient Linux systems, but the only SCSI device I attached nowadays was the LTO Tape drive, for full system backups, very occasionally..   Now, I have the HP RX2600 IA64 system, with nothing but U320 SCSI LVD disks, and needed to find a way of attaching one … Continue reading →

Posted in hardware, Linux, Opinion, SCSI | Tagged attach, detach, fedora, linux, lvd disk, no reboot, scsi | Leave a reply

IA64 – An Exercise in Nostalgia..

Adventures With Linux ™ Posted on November 21, 2017 by RGNovember 21, 2017

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 beef it up with some inexpensive parts from eBay.. The spec – at the moment – is … Continue reading →

Posted in Fedora, Hacks, hardware, IA64, Intel, Itanium, kernel, Linux, Opinion, quirks, RX2600 | Tagged boot, fedora, hp, ia64, itanium, kernel 4.14.1, rx2600, success, webmin | 4 Replies

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