Posted by jpluimers on 2019/05/24
Some tips on pruning entries from the systemd journal:
For stock opensuse, this is also relevant, as it seems to allow indefinite growth: [WayBack] systemd – journald Settings likey need your attention
You can view disk usage with this command:
journalctl --disk-usage
–jeroen
Posted in *nix, Linux, Power User, systemd | Leave a Comment »
Posted by jpluimers on 2019/05/23
Too bad G+ doesn’t allow the WayBack machine or Archive.is to archive the whole thread at [WayBack] [Archive.is] Das es inzwischen fast überall Standard ist die Uhren mit einem guten Zeitsignal zu synchronisiseren (NTP, DCF-77, GPS etc) ist eigentlich eine gute Sache… – Kristian Köhntopp – Google+ so here are a few quotes below.
The generatel conclusions seem to be that:
This was the start:
Nils Ketelsen originally shared:
Guckt man live sieht es schon anders aus: Während die RunQueue meist so bei 4-5 liegt (bei 21vCPUs kein Problem) springt sie jede volle Minute einige Sekunden lang auf 20. Bei durch 2 Teilbaren Minuten auf ca. 40. Bei durch 10 Teilbaren Minuten auf 70, bei durch 15 teilbaren Minuten auf 150…. Ich habe eben durch einen schlecht getimten Toilettenbesuch die volle Stunde verpasst, das muss ich gleich mal anders hinbekommen, aber ich gehe davon aus, daß es da noch schlimmer ist.
And these some of the comments:
Posted in *nix, *nix-tools, Algorithms, cron, Development, Power User, Software Development | Leave a Comment »
Posted by jpluimers on 2019/05/20
Handy interactive map of the periodic system: [WayBack] elements.wlonk.com
via: [WayBack] Interactive Periodic Table.Wonderful. Identify the typical uses for each element as you scroll over it.http://elements.wlonk.com/ElementsTable.htm – Lars Fosdal – Google+
Posted in LifeHacker, Power User, science | Leave a Comment »
Posted by jpluimers on 2019/05/20
- go to control panel | display
- change the screen resolution. the artifact will go away
- click on cancel when windows asks you if you want to keep the new resolution.
this works on laptops too.
[WayBack] User mahesh – Super User answering [WayBack] How to clear screen artifacts without rebooting Windows (multiple versions) – Super User
–jeroen
Posted in Power User, Windows, Windows 10, Windows 7, Windows 8, Windows 8.1, Windows Vista, Windows XP | Leave a Comment »
Posted by jpluimers on 2019/05/17
Booting the VM gave this in the log:
# btrfs balance /
WARNING:
Full balance without filters requested. This operation is very
intense and takes potentially very long. It is recommended to
use the balance filters to narrow down the scope of balance.
Use 'btrfs balance start --full-balance' option to skip this
warning. The operation will start in 10 seconds.
Use Ctrl-C to stop it.
10 9 8 7 6 5 4 3 2 1
Starting balance without any filters.
ERROR: error during balancing '/': Input/output error
There may be more info in syslog - try dmesg | tail
diaspore:~# dmesg | tail
[ 2261.857360] BTRFS info (device sda2): found 144 extents
[ 2261.922014] BTRFS info (device sda2): found 144 extents
[ 2262.003653] BTRFS info (device sda2): found 144 extents
[ 2262.146557] BTRFS info (device sda2): found 144 extents
[ 2262.268034] BTRFS info (device sda2): relocating block group 20951597056 flags data
[ 2268.255631] BTRFS info (device sda2): found 19765 extents
[ 2278.541549] BTRFS info (device sda2): found 19758 extents
[ 2278.685372] BTRFS info (device sda2): relocating block group 14558429184 flags data
[ 2278.714483] BTRFS warning (device sda2): csum failed root -9 ino 269 off 65150976 csum 0x27374190 expected csum 0x7091fbbc mirror 1
[ 2278.714619] BTRFS warning (device sda2): csum failed root -9 ino 269 off 65150976 csum 0x27374190 expected csum 0x7091fbbc mirror 1
Booting from a rescue DVD, then checking with an unmounted /dev/sda2 nothing is wrong:
localhost:~ # btrfs check /dev/sda2 Checking filesystem on /dev/sda2 UUID: 23d33d0f-0468-4408-b73c-b0eec9387d82 checking extents checking free space cache checking fs roots checking csums checking root refs checking quota groups found 6460166144 bytes used, no error found total csum bytes: 5795704 total tree bytes: 214171648 total fs tree bytes: 193740800 total extent tree bytes: 12910592 btree space waste bytes: 40754145 file data blocks allocated: 35720101888 referenced 11352182784
Both had the same version:
# btrfs version btrfs-progs v4.13
If I ever need recovery, then these links likely help:
–jeroen
Posted in *nix, *nix-tools, btrfs, File-Systems, Power User | Leave a Comment »
Posted by jpluimers on 2019/05/17
LET OP! Per zorgverleningsovereenkomst, moet je OOK een zorgbeschrijving indienen: zorgbeschrijving naar zogkantoor, zorgverleningsovereenkomst naar zorgkantoor en SVB.
Buiten SVB om:
–jeroen
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Posted by jpluimers on 2019/05/16
To reset Ubuntu Unity or any other Linux desktop with GNOME/MATE DEs to its default settings, run:
dconf reset -f /
Source: [WayBack] Reset Linux Desktop To Default Settings With A Single Command – OSTechNix
I need to check if it works on OpenSuSE with XFCE as there the dconf command is installed, but I still have a default desktop (mainly because most of the work I do is using a terminal over ssh).
–jeroen
via: [Archive.is] Never thought about dconf reset… Joe C. Hecht – Google+
Posted in *nix, *nix-tools, Linux, Power User, X11 | Leave a Comment »
Posted by jpluimers on 2019/05/15
Steps:
Tools followed by Any Time, then Custom range often does not show a dialog.&tbs=qdr:y to the URL magically enables that popup:This is how I found the post in Did you hear about the man who got cooled to absolute zero? He’s 0K now.
I think cdr stands for custom date range and qdr for a built in date range as after searching for the abbreviations, I found [WayBack] Google Search URL Request Parameters | DETECTED that discusses tbm and tbo in addition to tbs.
The trick above is the successor of [WayBack] Filter Google Results by Date with a URL Trick which appended &as_qdr=d.
–jeroen
Posted in Google, GoogleSearch, Power User | Leave a Comment »
Posted by jpluimers on 2019/05/15
[WayBack] Programmers solve MIT’s 20-year-old cryptographic puzzle | MIT CSAIL:
The capsule ceremony will happen Wednesday, May 15 at 4 p.m. at MIT’s Stata Center.
Cool work, with a very cool challenge.
Via/related:
–jeroen
Posted in Development, Power User, Security, Software Development | Leave a Comment »
Posted by jpluimers on 2019/05/14
Some systems to not have a %windir%\ShellNew directory, so here are some links and observations on ShellNew entries in the registry.
Originally, I needed this for Creating a blank Visual Studio solution without a directory, and sln Format Version numbers but found a default installation did not have a %windir%\ShellNew directory.
A similar Windows 8.1 system had these files there:
EXCEL12.XLSXMSPUB.PUBOn the Windows 10 system, these files were in C:\Program Files (x86)\Microsoft Office\root\vfs\Windows\SHELLNEW, so apparently, Windows 10 has moved more into a Virtual File System structure.
The key HKEY_CLASSES_ROOT\.zip\CompressedFolder\ShellNew on both systems has the below values, indicating you do not need a file template: a binary template in the registry suffices:
Data having REG_BINARY content of a 22-byte empty .zip fileItemName having a REG_EXPAND_SZ content pointing to @%SystemRoot%\system32\zipfldr.dll,-10194The key HKEY_CLASSES_ROOT\.rtf\ShellNew on both systems has the below values, indicating you do not need a file template: a text template in the registry suffices:
Data having REG_SZ content of a 7 character file content {\rtf1}ItemName having a REG_EXPAND_SZ content pointing to @%ProgramFiles%\Windows NT\Accessories\WORDPAD.EXE,-213The key HKEY_CLASSES_ROOT\.bmp\ShellNew on both systems has the below values, indicating you do not need a file template: a zero byte template in the registry suffices:
NullFile having an empty REG_SZItemName having a REG_EXPAND_SZ content pointing to @%systemroot%\system32\mspaint.exe,-59414At HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders, is a value named Templates having an absolute path which can be expanded from %AppData%\Microsoft\Windows\Templates.
That directory was empty, but it is connected to the HKEY_CURRENT_USER\Software\Classes counterpart of HKEY_CLASSES_ROOT (the latter is an alias for HKEY_LOCAL_MACHINE\SOFTWARE\Classes).
So in stead of putting template files in %WinDir%\ShellNew plus registering them underHKEY_CLASSES_ROOT, you can put them in %AppData%\Microsoft\Windows\Templates and register them under HKEY_CURRENT_USER\Software\Classes.
Since people have requested empty solution files to be created without creating a directory for a long time ([WayBack] create solution without folder – Visual Studio) and Visual Studio still does not allow you to do that, I have amended the %WinDir%\ShellNew based solution I created some 7 years ago at Creating a blank Visual Studio solution without a directory, and sln Format Version numbers, to a current user based one:
[WayBack] jeroenp / wiert.me / commit / 01e4430712a6 — Bitbucket:
Amend empty Visual Studio templates to support%AppData%\Microsoft\Windows\Templates referenced from HKEY_CURRENT_USER\Software\Classes
I might be able to morph this into a registry-only solution by using REG_MULTI_SZtyped values containing the actual .sln template content as multi-line strings separated by zero bytes. Some starting links on this for future reading:
HKEY_CLASSES_ROOT.This is a special registry hive that combines the local user’s associations in HKEY_CURRENT_USER\Software\Classes with the system’s associations in HKEY_LOCAL_MACHINE\Software\Classes.–jeroen
Posted in Power User, Windows, Windows Explorer / Windows Shell | Leave a Comment »
The Wiert Corner - irregular stream of stuff 