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by MuntyScruntfundle
Mon Jan 20, 2020 10:21 pm
Forum: General discussion
Topic: pi4 VNC Cannot show desktop
Replies: 2
Views: 267

pi4 VNC Cannot show desktop

Hi there. I've been using a pi4 (finally got the thing running!) with VNC for the last couple of days, but I'm trying to load the desktop today and I'm getting "Cannot currently show the desktop". I've made no changes to the pi, I've checked VNC is enabled in raspi-config, I've made no changes to th...
by MuntyScruntfundle
Sun Jan 19, 2020 9:56 pm
Forum: General discussion
Topic: DToverlays for the 4?
Replies: 1
Views: 182

DToverlays for the 4?

Has anyone managed to find a list of the overlays for the pi4?

I've been looking around, somewhat unsuccessfully.

Thanks.
by MuntyScruntfundle
Thu Jan 16, 2020 1:14 pm
Forum: General discussion
Topic: Pi 4 power?
Replies: 11
Views: 680

Re: Pi 4 power?

So, some progress was made. A micro to standard HDMI converter arrived today so I can test with my standard monitor. YAY! An intro screen and some introductions. So, I changed my password, selected the UK, entered my wifi password, was warned there might now be a big update, screen went black..........
by MuntyScruntfundle
Wed Jan 15, 2020 8:49 pm
Forum: General discussion
Topic: Pi 4 power?
Replies: 11
Views: 680

Re: Pi 4 power?

Hmm, spoke a little too soon. With HDMI connected to either port I get the 4 raspberries, a very brief flash of a white panel with a raspberry on it, then the display dies. The disk light continues to flash away for a couple of seconds, so I'm pretty sure it's booting, but the monitor output is gett...
by MuntyScruntfundle
Wed Jan 15, 2020 8:38 pm
Forum: General discussion
Topic: Pi 4 power?
Replies: 11
Views: 680

Re: Pi 4 power?

Yeah, it's a buster image. Yes I'd done the eprom fix, I should have said. It took longer on one than the other, which suggests to me one of them needed updating and one didn't. Not sure what that says. I've just tried downloading the image from a different page on the Rasperry site, not from the ma...
by MuntyScruntfundle
Wed Jan 15, 2020 7:19 pm
Forum: General discussion
Topic: Pi 4 power?
Replies: 11
Views: 680

Re: Pi 4 power?

Correct pin numbers 4 and 6!
by MuntyScruntfundle
Wed Jan 15, 2020 7:08 pm
Forum: General discussion
Topic: Pi 4 power?
Replies: 11
Views: 680

Pi 4 power?

Hi there. I have a bunch of pi3s which are all powered from pin 2 and 3 (I think) on the header, and I've just received a couple of 4s to try. I have buster flashed to a known good 32gb card, but I can't get either 4 to do anything. I plug the power in, get a couple of tiny flashes from the green le...
by MuntyScruntfundle
Tue Jan 14, 2020 9:10 pm
Forum: General discussion
Topic: pi4 with previous pi3 card?
Replies: 6
Views: 288

Re: pi4 with previous pi3 card?

Yes, power to header, 5v directly to power pins, not usb. I think every pi3 I have is Stretch, so, back to learning everything again. Deep Yay! Thanks for your quick responses, very appreciated. Just out of interest, at the level of fstab, rc.local and other well used etc/ files, how much change sho...
by MuntyScruntfundle
Tue Jan 14, 2020 1:32 pm
Forum: General discussion
Topic: pi4 with previous pi3 card?
Replies: 6
Views: 288

pi4 with previous pi3 card?

Should a pi4, with the same power provided to the header block, boot from a pi3 maintained (fully up to date) Raspbian install, or should I start with a fresh flash?

Many thanks.
by MuntyScruntfundle
Tue Jan 14, 2020 12:22 pm
Forum: General discussion
Topic: Mysql mysqludf install on Raspbian
Replies: 0
Views: 64

Mysql mysqludf install on Raspbian

Hi there. Has anyone out there managed to get mysqludf working with Mysql/MariaDB on Raspbian? There seem to be very few pages about it. I have a simple but odd problem with it so far. The 'plugin' variable listed by mysql is /usr/lib/arm-gnu-blah/mariadb18/plugin. That's where my .so file is. But c...
by MuntyScruntfundle
Sun Jan 12, 2020 10:20 pm
Forum: General discussion
Topic: Setup local repository.
Replies: 7
Views: 895

Setup local repository.

Hi there. I've been looking for better solutions for updating my pis for a couple of days, I can't find exactly what I need, not sure if that's because it can't easily be done, or if it's possible. Or I'm searching for the wrong thing as I don't know what I'm talking about! I can find solutions for ...
by MuntyScruntfundle
Fri Jan 10, 2020 7:32 pm
Forum: General discussion
Topic: apt-cacher-ng and Raspbian
Replies: 1
Views: 178

apt-cacher-ng and Raspbian

Hi folks. I have to do something with this cluster, updating everything through my internet connection was always meant to be temporary and is becoming impossible to manage. I've found some posts on "apt-cacher-ng" and how it works, looks ideal, but the help I can find seems strictly for Debian and ...
by MuntyScruntfundle
Tue Jun 11, 2019 8:02 pm
Forum: General discussion
Topic: Toggle switch question?
Replies: 4
Views: 386

Toggle switch question?

Hi folks. I know this is strictly an electrics question, but it's going to be connected to a pi, so I hope you can forgive me. I need a 4 pole toggle switch, and kind of an On/On switch. I don't know what the correct terminology is, but the diagram goes... (Where A and B are inputs and 'o' is the ou...
by MuntyScruntfundle
Tue May 28, 2019 1:22 pm
Forum: General discussion
Topic: Music server with a twist.
Replies: 1
Views: 233

Music server with a twist.

Hi there. My gardener chap (nice guy) has come to me today with an idea, he wants a small, inexpensive (cheap) music server. The immediate thought is a pi+ssd. Simple. Except he wants the sound sent to his old retro hifi system. That's ok, the headphone jack should accomplish that. The problem is, w...
by MuntyScruntfundle
Thu Apr 18, 2019 9:26 pm
Forum: General discussion
Topic: fsck on an image?
Replies: 1
Views: 242

fsck on an image?

If I take a working raspberry sd, put it in an external card reader attached to another pi, locate the sd as /dev/sda(b,c) then run - fsck /dev/sda, should I get errors about superblocks and be advised to try another version which gives the exact same error? I now have a mixture of Ubuntu, Debian an...
by MuntyScruntfundle
Mon Apr 15, 2019 4:01 pm
Forum: General discussion
Topic: fstab woes.
Replies: 3
Views: 256

Re: fstab woes.

Thanks folks, added and the first test appeared to be ok.

Many thanks, saved me a huge headache. :o)
by MuntyScruntfundle
Wed Apr 03, 2019 11:09 am
Forum: General discussion
Topic: fstab woes.
Replies: 3
Views: 256

fstab woes.

Hi folks. For some time I've been running external drives with a few pis. Recently I had to move a drive from one place to another. Not realising fstab would cause issues a week of fault finding ensued. The good news is I have it working now. I might have lost a little hair. fstab is great for netwo...
by MuntyScruntfundle
Mon Apr 01, 2019 9:35 am
Forum: General discussion
Topic: Emergency mode loop.
Replies: 1
Views: 154

Emergency mode loop.

After formatting (gparted) and mounting in fstab a new SSD connected via USB my pi is giving me the "root not accessible.. blah" message, "Press enter to continue". So I do, and get the same message. How can I break out of this loop? I can burn the SD again and go back to a resent image, but I'd soo...
by MuntyScruntfundle
Tue Mar 19, 2019 11:28 am
Forum: General discussion
Topic: Disk activity light.
Replies: 2
Views: 645

Disk activity light.

Hi folks. I've poked the disk activity settings in config.txt so I now have pin 21 being the disk activity led. But, this only seems to be connected to the SD, with a usb/sata drive attached I get no light activity when this drive is being accessed. Of course the SD is connected to the board and my ...
by MuntyScruntfundle
Fri Mar 15, 2019 5:10 pm
Forum: General discussion
Topic: Identifying a board..
Replies: 15
Views: 1326

Identifying a board..

Hi folks.

I'm just wondering -as this would save me huge amounts of time- is there anything on the Raspberry I can write a permanent value to? Would only need to be 3 digits as a kind of identifier.

Any ideas?

Thanks.
by MuntyScruntfundle
Tue Mar 05, 2019 5:28 pm
Forum: General discussion
Topic: enter.hooks advice?
Replies: 0
Views: 208

enter.hooks advice?

Hi folks. I've been looking for an answer to running scripts from my NAS on boot recently, the dhcpcd.enter-hook file approach seems to be what I'm looking for, however I'm having some difficulty getting it set up. The manual pages for the file expect a certain knowledge of unix systems which it app...
by MuntyScruntfundle
Mon Mar 04, 2019 5:31 pm
Forum: General discussion
Topic: Finding differences in identical pis?
Replies: 10
Views: 771

Re: Finding differences in identical pis?

And should add: The network is a bunch of stacked GS752TS so there is no way (unless i decided to copy a 5gb file on stop) there can be any bottlenecks. And still this wouldn't explain why all the problem pis stay on for xx seconds longer, then all power off at the same time.
by MuntyScruntfundle
Mon Mar 04, 2019 5:27 pm
Forum: General discussion
Topic: Finding differences in identical pis?
Replies: 10
Views: 771

Re: Finding differences in identical pis?

I suppose I could write a script that dumped the process list every second, but I'd have no control over when it would be closed down, so would it help??
by MuntyScruntfundle
Mon Mar 04, 2019 5:27 pm
Forum: General discussion
Topic: Finding differences in identical pis?
Replies: 10
Views: 771

Re: Finding differences in identical pis?

They are identical. Same pi. Same cards. Same Distro. Same Updates. Same Upgrades. Same installs. Same mounts. Same Power. Same GPIO assignments. The problem isn't with individual pis, especially the slow shutdown, it will randomly affect different pis on each system shutdown or reboot. It's a softw...
by MuntyScruntfundle
Mon Mar 04, 2019 11:54 am
Forum: General discussion
Topic: Ideal temperatures.
Replies: 10
Views: 779

Re: Ideal temperatures.

As your goal is “to ensure the longevity of a pi”, you should not only keep the temperature from too high (or too cold) but also minimize the temperature fluctuation.
So as "bertlea" suggests, the temperature should be stable. But what damage is likely with fluctuation?

Thanks again.

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