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by MarkJ62
Sun Aug 18, 2019 12:29 pm
Forum: Raspbian
Topic: Anyone tried ZFS on Pi 4 or planning to do so?
Replies: 6
Views: 1952

Re: Anyone tried ZFS on Pi 4 or planning to do so?

I run ZFS on a Debian x64 machine. The first issue will be that it requires 64 bit so that means aarch64 architecture. You should be fine with 2TB drives in a mirror using a 4GB Pi4. It only uses up to half the available memory when you start giving it a lot of work to do and it frees it again when ...
by MarkJ62
Sun Aug 18, 2019 11:49 am
Forum: Troubleshooting
Topic: apt update issues
Replies: 4
Views: 211

Re: apt update issues

Packages appears to gone from 13MB to 18.3MB and then to 69MB. Are there 3 sets of Packages? No, there are five sets of packages files in your set up. But two of them haven't changed since last time you did an apt update, so they didn't need to be downloaded again "Ign:" For this line in your sourc...
by MarkJ62
Sun Aug 18, 2019 7:40 am
Forum: Troubleshooting
Topic: apt update issues
Replies: 4
Views: 211

apt update issues

A Pi3B+ running Buster. No proxy. Taking 9 minutes to get the list of updates and its 69MB. I have repeated this on a couple of Pi's in my bramble. They're all configured the same. Does anyone get three different sizes for their Packages or is it just me? $ uname -a Linux *** 4.19.58-v7+ #1245 SMP F...
by MarkJ62
Mon Aug 12, 2019 12:28 pm
Forum: Raspbian
Topic: Buster bug report thread
Replies: 231
Views: 31655

Re: Buster bug report thread

Apt seems to keep downloading Packages.xz even when using a caching proxy (Squid). I have a Bramble of 12 Pi3B+ and 10 Pi3B’s. I have one Pi3B+ with a PiDrive running Squid. When I do updates (sudo apt update) on each Pi it downloads the two Inrelease files, packages.gz and packages.xz. The two inre...
by MarkJ62
Sun Sep 09, 2018 7:16 am
Forum: Networking and servers
Topic: NFS server limiting the number of connections. Why?
Replies: 8
Views: 3779

Re: NFS server limiting the number of connections. Why?

I’m having a similar issue. I have increased the limit to 20 as suggested by Dougie Lawson. I have 18 nodes that are listed by exportfs but I can’t seem to get past 15 connected. If I pick one that hasn’t connected and manually issue the mount command it just sits there. Doing a ”netstat -a | grep n...
by MarkJ62
Thu Jun 07, 2018 2:10 pm
Forum: Other projects
Topic: advice from anyone with case printing experience
Replies: 7
Views: 1254

Re: advice from anyone with case printing experience

I just paid a professional company to knock up the design on mine. I provided them with the mechanical schematic from somewhere on here so they had the details of the Pi. I didn't have the time or any CAD experience so I turned up with paper drawings and spent an hour with the designer getting it in...
by MarkJ62
Tue Mar 27, 2018 9:57 am
Forum: Other projects
Topic: Pi ^4 Case Prototype
Replies: 11
Views: 3742

Pi ^4 Case Mk II

Now on the second iteration, it has two 60mm fans instead of four smaller ones. https://3.bp.blogspot.com/-AbLVJbYY-ZM/WrnzSFDaFbI/AAAAAAAABMQ/AU_Bemun0as2lNJOoJSRk4Bx9cxFZOugQCLcBGAs/s1600/Pi%255E4%2BMk%2BIIa.png And here is a link to the pictures... http://marksrpicluster.blogspot.com.au/2018/03/p...
by MarkJ62
Sun Mar 04, 2018 1:12 am
Forum: Other projects
Topic: Pi ^4 Case Prototype
Replies: 11
Views: 3742

Re: Pi ^4 Case Prototype

Re the power supply. I use a 5 port USB charger. You can see it in the picture of the fully assembled case. They are Astrotek USB smart charger model AT-UPS-008 or 008B. I tried an Anker but it didn’t work for the Pi’s - great for charging the iPad but not for keeping voltage/current at a constant l...
by MarkJ62
Mon Jan 01, 2018 12:37 am
Forum: Other projects
Topic: Any recommendations for CAD software for 3D printing cases?
Replies: 2
Views: 1531

Re: Any recommendations for CAD software for 3D printing cases?

The 3D printing company I used were using SolidWorks 3D. I gave them a copy of the Pi mechanicals as a DXF file that they imported into it. They spent about an hour taking my hand drawings to get onto the computer. After that I had a session with them that was around 30 mins to fix up design details...
by MarkJ62
Sat Dec 09, 2017 10:11 pm
Forum: Other projects
Topic: Pi ^4 Case Prototype
Replies: 11
Views: 3742

Re: Pi ^4 Case Prototype

I’ve renamed it to save confusion with other products. I am now referring to it as the Pi ^4 Case (ie Pi to the power of 4).
by MarkJ62
Sat Dec 09, 2017 10:53 am
Forum: Other projects
Topic: Pi ^4 Case Prototype
Replies: 11
Views: 3742

Pi ^4 Case Prototype

Having quite a few Pis I needed a case that could hold more than one in a single case. I am aware of two others that can be purchased, namely the Beagle Bone (and similar designs) and the BitScope blade. My Pi3's are running at 100% CPU load 24/7 so they need a case with active cooling. I had previo...
by MarkJ62
Sat Feb 18, 2017 10:02 pm
Forum: Other projects
Topic: Compatible fan and heat sinks for the official case
Replies: 4
Views: 5760

Re: Compatible fan and heat sinks for the official case

I am using a number of official cases until I can come up with something better for multiple Pis. I used Enzotech 14x14x14 mm copper heatsink on the SoC. I cut a 38mm hole in the lid and mounted the Noctua 40mm fan on top of the lid. I used the supplied cables and pull power from the GPIO pins. The ...
by MarkJ62
Sat May 07, 2016 8:50 am
Forum: Advanced users
Topic: Linux kernel is now 4.4
Replies: 114
Views: 69303

Re: Linux kernel is now 4.4

Not strictly a kernel problem as I updated the kernel successfully via rpi-update, however doing an apt-get upgrade totally stuffs a Pi2 running stretch. Computer name redacted. uname -a Linux *** 4.4.9-v7+ #884 SMP Fri May 6 17:28:59 BST 2016 armv7l GNU/Linux The following packages will be upgraded...
by MarkJ62
Tue May 03, 2016 3:41 am
Forum: Troubleshooting
Topic: Rolling back rpi-update
Replies: 3
Views: 1169

Re: Rolling back rpi-update

Is there a way to work out which comit belongs to which version? That is the version shown via the uname -a command.

Code: Select all

$ uname -a
Linux *** 4.4.7-v7+ #877 SMP Sun Apr 17 12:48:36 BST 2016 armv7l GNU/Linux
by MarkJ62
Sun Apr 17, 2016 5:15 am
Forum: Other projects
Topic: Official Pi case with unofficial 40mm fan
Replies: 2
Views: 6410

Re: Official Pi case with unofficial 40mm fan

With 4 Seti Beta tasks running its getting 55.8 degrees C. Room temp is 28 degrees. With just the heatsink it got to 79 degrees. I have a number of Pi2's which I also use. I'm in the process of swapping them out for Pi3's. The Pi2's were happy with just a heatsink. The Pi3 needs a heatsink and a fan...
by MarkJ62
Sat Apr 16, 2016 2:12 pm
Forum: Other projects
Topic: Official Pi case with unofficial 40mm fan
Replies: 2
Views: 6410

Official Pi case with unofficial 40mm fan

I took a Pi3 and put it into the official case. Nothing special about that, except they get hot, very hot. First thing was to add a copper heatsink which was enough for the Pi2. Unfortunately not so for a Pi3 running flat out. Time to add a fan. I used a 40mm Noctua as they are only 17dB. You can ha...
by MarkJ62
Tue May 20, 2014 11:37 am
Forum: Advanced users
Topic: Linux kernel is now 3.12
Replies: 72
Views: 24067

Re: Linux kernel is now 3.12

Crashed again, of course nothing on the screen so can't provide any more info.
by MarkJ62
Sun May 18, 2014 4:41 am
Forum: Advanced users
Topic: Linux kernel is now 3.12
Replies: 72
Views: 24067

Re: Linux kernel is now 3.12

I have been testing the BOINC apps under 3.12.19+ after reports of crashes on the BOINC forums. I am running the [email protected] app at the moment on it which worked fine on the 3.10 kernel that the rest of my fleet of Pi's are running. I started off by doing the kernel upgrade while still running Wh...
by MarkJ62
Sat Feb 22, 2014 11:41 pm
Forum: Other projects
Topic: PiFan - Fan on a case mod
Replies: 9
Views: 3969

Re: PiFan - Fan on a case mod

No offense but why would one want to make a quiet thing noisy when it's unnecessary? To cool down F3 to prevent it from "blowing" when trying to power a 290mA fan via the USB in addition to the power required by the Pi :lol: 290mA is well within the USB spec of 500mA. I did consider running it dire...
by MarkJ62
Sat Feb 22, 2014 11:33 pm
Forum: Other projects
Topic: PiFan - Fan on a case mod
Replies: 9
Views: 3969

Re: PiFan - Fan on a case mod

No offense but why would one want to make a quiet thing noisy when it's unnecessary? Because its in a hot location, typically 30+ degrees. With the top on the case only having a few small air holes they build up a fair bit of heat on their own when running at 100% load. As for noise I don't notice ...
by MarkJ62
Fri Feb 21, 2014 10:53 pm
Forum: Other projects
Topic: PiFan - Fan on a case mod
Replies: 9
Views: 3969

PiFan - Fan on a case mod

I've tacked a fan on one of my Pi's and thought I would share it. The full details can be found on my blog markjatboinc Here are a couple of pics http://2.bp.blogspot.com/-tY4G5eCAm5A/UwfH1letN2I/AAAAAAAAA6M/xpW4dZLdnWc/s1600/PiFan_a.JPG http://3.bp.blogspot.com/-IpNtHaNE1Lo/UwfH4qKwv3I/AAAAAAAAA60/...
by MarkJ62
Tue Apr 02, 2013 10:29 am
Forum: Other projects
Topic: 4u Bramble Case - (Pi4U)
Replies: 9
Views: 6442

Re: 4u Bramble Case - (Pi4U)

Hi Paul-E

Any update to the case, photos, etc?
by MarkJ62
Fri Mar 01, 2013 8:34 pm
Forum: Raspbian
Topic: Pi on a windows network
Replies: 7
Views: 1310

Re: Pi on a windows network

I now have the router assigning a static IP to the Pi so at least it doesn't change.

Samba thinks its already installed
by MarkJ62
Mon Feb 25, 2013 11:22 am
Forum: Raspbian
Topic: Pi on a windows network
Replies: 7
Views: 1310

Re: Pi on a windows network

Have you tried hostname.local ? Another option is to make a resolver script using arp, grep and maybe some other tools to use MAC addressing, instead of IP addressing. I think windows machines can be set up to pass DNS information back to the router, it's roundabout the same place as WINS resolutio...
by MarkJ62
Wed Feb 20, 2013 2:26 pm
Forum: Raspbian
Topic: Pi on a windows network
Replies: 7
Views: 1310

Pi on a windows network

I have been having a bit of fun getting my Pi's to behave on a windows network. My router can see all the devices, however the Pi's don't seem able to see the windows machines. They can access the internet fine and I can download updates and surf the net with Midori just fine. I need to get the Pi's...

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