Posted by jpluimers on 2020/07/14
Interesting:
How does WCF, a 13-year-old mega-abstraction framework hold up against the modern, lean, ASP.NET Core? You’d be surprised.
Source: [WayBack] Is WCF faster than ASP.NET Core? Of course not! Or is it?
Via: [WayBack] Interesting read! – Ondrej Kelle – Google+
–jeroen
Posted in .NET, Development, Software Development | Leave a Comment »
Posted by jpluimers on 2020/07/13
A very insightful talk: “Marrying U-Boot, uEFI and grub2 – Alexander Graf – openSUSE…”
Booting is hard. Booting in the ARM world is even harder. State of the art are a dozen different boot loaders that may or may not deserve that name. Each gets configured differently and each has its own pros and cons.
As a distribution this is a nightmare. Configuring each and every one of them complicates code that really should be very simple.
To solve the problem, we can just add another layer of abstraction (grub2) on top of another layer of abstraction (uEFI) on top of another layer of abstraction (u-boot). Follow me on a journey on how all those layers can make life easier for the distribution and how much fun uEFI really is.
After this talk, you will know how ARM systems boot, what uEFI really means, how uEFI binaries interact with firmware and how we are going to move to uEFI based boot on openSUSE for ARM.
Usually known as agraf on-line, [WayBack] Alexander Graf – Open IoT & ELC 2017 is an impressive guy:
Alexander Graf
SUSE
KVM Wizard
Nürnberg Area, GermanyAlexander started working for SUSE about 9 years ago. Since then he worked on fancy things like SUSE Studio, QEMU, KVM and openSUSE on ARM. Whenever something really useful comes to his mind, he tends to implement it. Among others he did Mac OS X virtualization using KVM, nested SVM, KVM on PowerPC and a lot of work in QEMU for openSUSE on ARM. He is the upstream maintainer of KVM for PowerPC, QEMU for PowerPC and QEMU for S390x.
Slides: [WayBack] Marrying U-Boot, UEFI and grub.pdf
There are 2 videos on YouTube (view them below):
Boot sequence:
Alexander pushed the U-Boot stuff up stream, but the FreeBSD team was the first to actually boot a full OS from it.
Relations:
U-boot:
Connectmd.b (shows bytes starting at memory address for a certain length)config.txt is used for that; specs at [WayBack] config.txt – Raspberry Pi Documentation–jeroen
References:
Images
Posted in *nix, *nix-tools, openSuSE, Power User, SuSE Linux, Tumbleweed | Leave a Comment »
Posted by jpluimers on 2020/07/13
I wish this keyboard was still on the market [WayBack] ThinkPad USB Keyboard With TrackPoint – Overview.
Known as 55Y9053, 55Y9003 and 57Y4641 (and a few others like the English/EUR 55Y9042 if you count the various localised layouts at [WayBack] ThinkPad USB Keyboard with TrackPoint – Service parts), it was one of the best keyboards made apart from the big delete key (that was better in the predecessor, but that one lacked windows keys: [WayBack] Lenovo ThinkPad USB Keyboard Review | NotebookReview).
It is about the same as the Thinkpad25, which added a touchpad: [WayBack] The 25th-anniversary ThinkPad: Every laptop should add some retro appeal | Ars Technica Review: A seven-row keyboard? Matte screen? TrackPoint? The all-business black body? Swoon
--jeroen
Posted in History, Power User, ThinkPad, UltraNav keyboards | Leave a Comment »
Posted by jpluimers on 2020/07/13
How retro can you get? [WayBack] Level 29: The BBS gets very far: it runs on an Apple IIgs and provides access via modem (via a landline!), telnet or web to the same text interface.
Web access via [WayBack] Shell In A Box
Welcome to the *NEW* Level 29 BBS!
916 965 1701 - bbs.fozztexx.com
. . _, _,
| _ . , _ | '_) (_)
|___(/, \/ (/,| /_. |
The official BBS of
RetroBattlestations.com
Enter your username or NEW or VISITOR
User:
It
Related:
Via: [WayBack] Got this TV yesterday at a garage sale and hooked up the Apple II through the Sup R Mod and installed the Hayes Micromodem IIe to call Level 29 BBS. No … – Chris Osborn – Google+
–jeroen
Posted in 6502, BBS, History | Leave a Comment »
Posted by jpluimers on 2020/07/10
I am still a bit ambivalent on remapping keys on a keyboard, mainly because of two reasons:
Just in case I am going to use it:
$ brew install caskroom/cask/karabiner (both need the root/administrator password as they hook deeply in your machine).–jeroen
Via:
Posted in Keyboards and Keyboard Shortcuts, Power User | Leave a Comment »
Posted by jpluimers on 2020/07/10
Hopefully by now the extensions below still work, as Google removed the “View Image” button in Google Image Search a few years back.
When not: these might help finding an updated method (:
Via:
Google’s image-based search engine has been a staple of the internet for more than a decade. But this morning it got a little less useful: in addition to making the reverse image search tool harder to find, the “Show Image” button has disappeared.
Getty drops lawsuit against Google in exchange for controversial image search changes.
–jeroen
Posted in Google, GoogleImageSearch, GoogleSearch, Power User | Leave a Comment »
Posted by jpluimers on 2020/07/10
On my tools list: [WayBack] About – Rapid Environment Editor Rapid Environment Editor – freeware Windows environment variables editor
Thanks to Thomas Mueller via [WayBack] I have installed RAD Studio 10.1 Berlin running under Win 10 and I have tried to install GExperts. It doesn’t install into the IDE. I run the ExpertMana… – Bill Olson – Google+.
–jeroen
Posted in Power User, Windows | Leave a Comment »
Posted by jpluimers on 2020/07/09
For my link archive: [WayBack] openSUSE:Standards Rpm Metadata – openSUSE: Repository layout.
It is not fully up to date any more on primary.xml.gz, so here are my notes for the aarch64 version of Tumbleweed:
- Inspect http://download.opensuse.org/ports/aarch64/tumbleweed/repo/oss/repodata/repomd.xml [WayBack] for the name of
*-primary.xml.gz(in this case http://download.opensuse.org/ports/aarch64/tumbleweed/repo/oss/repodata/d701c298b21d0b995c9560f9cfcc84685cb916deacc4f4c4a613a9b9d8f5aa57-primary.xml.gz [WayBack]- Download that
.gzfile and uncompress it- Inspect the
*-primary.xmlfrom it, look inside themetatadataroot element for apackagehaving anameelement with valueopenSUSE-release: thatpackageelement now has aversionelement having averattribute containing the version text.
–jeroen
Posted in *nix, *nix-tools, Linux, openSuSE, Power User, SuSE Linux, Tumbleweed | Leave a Comment »
Posted by jpluimers on 2020/07/09
Various ways are explained at [WayBack] linux – How do I use sudo to redirect output to a location I don’t have permission to write to? – Stack Overflow.
Some are for simple commands and can be a one liner (for instance using tee, or executing a secondary shell).
Others are more suited for longer command sequences.
–jeroen
Posted in *nix, *nix-tools, bash, bash, Development, Power User, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2020/07/08
Since GetIt is hardly, if at all documented, but has quite a few of problems, I will likely need to use this another time: [WayBack] delphi – How to reset the download when the GetIt package manager fails? – Stack Overflow
Luis Navarro from Embacadero just explained to me:
Close the IDE, then delete the OmniThread folder from
MyDocuments\Embarcadero\Studio\17.0\CatalogRepositoryAfter that, you have to edit the registry and delete also the Omnithread folder fromHKEY_CURRENT_USER\SOFTWARE\Embarcadero\BDS\17.0\CatalogRepository\Elements
–jeroen
Posted in Delphi, Development, Software Development | Leave a Comment »
The Wiert Corner - irregular stream of stuff 
