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by mby
Sat Aug 01, 2020 2:21 pm
Forum: Troubleshooting
Topic: Can't set GOVERNOR to PERFORMANCE
Replies: 2
Views: 198

Re: Can't set GOVERNOR to PERFORMANCE

Thank you!
by mby
Sat Aug 01, 2020 10:34 am
Forum: Troubleshooting
Topic: Can't set GOVERNOR to PERFORMANCE
Replies: 2
Views: 198

Can't set GOVERNOR to PERFORMANCE

Trying to set the GOVERNOR to PERFORMANCE with cpufrequtils: put GOVERNOR="performance" into /etc/default/cpufrequtils and rebooted but /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor still shows ONDEMAND.

Thanks for your help!

P.S.: I'm using Linux 5.4.51-v8+ on aarch64 on a Pi4 4GB
by mby
Wed Jul 08, 2020 10:14 pm
Forum: General discussion
Topic: RPi4 Case w/ Mount for SSD?
Replies: 16
Views: 1834

Re: RPi4 Case w/ Mount for SSD?

GeekWorm‘s X857 SSD shield fits most cases as it is the same form factor; I use and love it, it performs nicely as well: https://geekworm.com/products/raspberry ... pi-4b-only
by mby
Sat Jul 04, 2020 2:11 pm
Forum: Beginners
Topic: Installing wordpress on Raspberry Pi
Replies: 2
Views: 170

Re: Installing wordpress on Raspberry Pi

Wordpress would like to see php 7.4 by now; of course, I could get it from sury.org (see https://computingforgeeks.com/how-to-in ... on-debian/) but would like to know if there is a plan to bring 7.4 to the regular buster feed, thanks!
by mby
Wed Jun 17, 2020 9:31 pm
Forum: Beginners
Topic: GNSS Module
Replies: 8
Views: 349

Re: GNSS Module

I affects the accuracy of the GPS-driven clock, if this is of interest to you.
by mby
Wed Jun 17, 2020 3:03 pm
Forum: Beginners
Topic: GNSS Module
Replies: 8
Views: 349

Re: GNSS Module

Connections via USB have less accuracy compared to serial, they also often miss the PPS connectivity.
by mby
Tue Jun 16, 2020 8:56 pm
Forum: Beginners
Topic: GNSS Module
Replies: 8
Views: 349

Re: GNSS Module

And this is a good escription: http://www.philrandal.co.uk/blog/archiv ... y_213.html

Eventually, I ended up using ntpsec w/ ntpviz and gpsd via SHM a'la https://blog.thelifeofkenneth.com/2020/ ... 1-ntp.html, for example (but with variations)...
by mby
Tue Jun 16, 2020 8:53 pm
Forum: Beginners
Topic: GNSS Module
Replies: 8
Views: 349

Re: GNSS Module

I chose uputronics and never looked back: https://store.uputronics.com/index.php? ... duct_id=81
by mby
Thu Jun 11, 2020 1:36 pm
Forum: General discussion
Topic: USB MSD bootloader EEPROM second update 2020-06-03 - BETA
Replies: 54
Views: 5023

Re: USB MSD bootloader EEPROM 2020-06-03 - BETA

(...) The "blue" Eluteng USB 3.0 to SATA-III adapter cable works with both UAS and TRIM (no quirks required). (...) On a side note: how do you do activate trim on the Pi with SSD? - Thanks! P.S.: Found it @ https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=275187&p=1671542&hilit=ssd+trim#p167...
by mby
Sat May 02, 2020 9:09 am
Forum: Advanced users
Topic: Moving Linux Kernel to 5.4
Replies: 418
Views: 56477

Re: Moving Linux Kernel to 5.4

Thank you! – All runs well, CPU temp. is 5°C higher given the same load (running a headless ntp server).
by mby
Sun Apr 12, 2020 1:40 pm
Forum: Advanced users
Topic: Moving Linux Kernel to 5.4
Replies: 418
Views: 56477

Re: Moving Linux Kernel to 5.4

Probably as stupid question: is 5.4 compiled with netfilter (iptables/nftables) as it does not seem to work here? – Or maybe I'm just doing something stupid...
by mby
Sun Apr 12, 2020 1:19 pm
Forum: Beginners
Topic: Building updated packages for Raspbian Buster myself
Replies: 0
Views: 95

Building updated packages for Raspbian Buster myself

Maybe you could help me with the following: while nearly all packages I could imagine are available on the feed, some are not the very latest version, of course; on example is ddclient, where I can find 3.8.3-1.1 on the feed and 3.9.1 on GitHub: https://github.com/ddclient/ddclient/releases (How) is...
by mby
Fri Apr 10, 2020 5:36 pm
Forum: Advanced users
Topic: Moving Linux Kernel to 5.4
Replies: 418
Views: 56477

Re: Moving Linux Kernel to 5.4

5.4 64-bit, of course.
by mby
Fri Apr 10, 2020 3:38 pm
Forum: Advanced users
Topic: Moving Linux Kernel to 5.4
Replies: 418
Views: 56477

Re: Moving Linux Kernel to 5.4

Looks like CPU temperature of my Pi4 has increased by 4 K since the last update; anybody else sharing this experience?
by mby
Fri Apr 03, 2020 7:30 am
Forum: Advanced users
Topic: Moving Linux Kernel to 5.4
Replies: 418
Views: 56477

Re: Moving Linux Kernel to 5.4

Runs smoothly @ 64 bit, needed to reinstall iptables, now everything's fine again.
by mby
Fri Mar 27, 2020 2:37 pm
Forum: Advanced users
Topic: Common firmware testing
Replies: 66
Views: 6384

Re: Common firmware testing

Interesting phenomenon here: since the last probably two commits, my Pi 4 (running the 64-bit kernel) randomly loses connection to the SSD drive containing /root and connected via USB3 with a Geekworm X856 Raspberry Pi 4 mSATA Shield; prior to the update, it ran rock solid, now it is probably just d...
by mby
Thu Mar 26, 2020 7:12 pm
Forum: Troubleshooting
Topic: Pi 4 Hanging - Where To Start Looking?
Replies: 4
Views: 265

Re: Pi 4 Hanging - Where To Start Looking?

Did you put /root on a USB-drive while keeping only /boot on the SD-card, or do you run all volumes from the SD card
by mby
Mon Mar 16, 2020 5:41 pm
Forum: Advanced users
Topic: Raspberry Pi4 bootloader beta update and new stable release stream
Replies: 56
Views: 8735

Re: Raspberry Pi4 bootloader beta update and new stable release stream

I find it easier to understand if you look at the naming from an environment perspective, e.g. 'critical' is the right version, for critical environments that must not change unnecessarily...
by mby
Fri Mar 13, 2020 9:08 pm
Forum: Advanced users
Topic: Common firmware testing
Replies: 66
Views: 6384

Re: Common firmware testing

Thank you Dougie for your feedback, but my posting was not a reply to yours, just a statement; my apologies if I missed your points.
by mby
Fri Mar 13, 2020 8:19 pm
Forum: Advanced users
Topic: Common firmware testing
Replies: 66
Views: 6384

Re: Common firmware testing

Running an NTP/NTS-server on a Pi 4 via Ethernet works great, no problems, neither w/ IPv4 nor w/IPv6.
by mby
Fri Feb 21, 2020 2:20 pm
Forum: Advanced users
Topic: mSATA USB interface for Pi 4 – TRIM for SSD?
Replies: 2
Views: 710

mSATA USB interface for Pi 4 – TRIM for SSD?

After some trouble with slow USB sticks etc., I recently went for Geekworm's X856 board that connects nicely via USB 3 to my Pi 4 @ 2GHz; after adding a Transcend 128GB mSATA SSD 230S, the combo scored a healthy ~10400 @ https://storage.jamesachambers.com/, no quirks required, I'm happy. Currently, ...
by mby
Mon Feb 17, 2020 10:10 pm
Forum: Advanced users
Topic: Time Drift in crystal of Rasp Pi 4?
Replies: 1
Views: 265

Re: Time Drift in crystal of Rasp Pi 4?

From what I can see at my GPS/PPS-based setup, it is pretty challenging for this very use case as it is quite temperature dependent; I see fluctuating frequency offsets in the order of 10-30ppm.
by mby
Sat Feb 15, 2020 11:32 am
Forum: Troubleshooting
Topic: Issues since kernel got updated to 4.19.93
Replies: 162
Views: 17577

Re: Issues since kernel got updated to 4.19.93

Kernel 4.19.102 crashes my Pi4 @ 2GHz w/ over_voltage=5 after ~1/2 hour; it ran rock-solid before. Odd it takes so long to fail, I would expect it to go before that. Just drop the overclock a bit to find the stable point. If it still fails at stock frequencies, then there is still a problem. As I'v...
by mby
Fri Feb 14, 2020 10:23 pm
Forum: Troubleshooting
Topic: Issues since kernel got updated to 4.19.93
Replies: 162
Views: 17577

Re: Issues since kernel got updated to 4.19.93

Kernel 4.19.102 crashes my Pi4 @ 2GHz w/ over_voltage=5 after ~1/2 hour; it ran rock-solid before.

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