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by Roken
Sat May 05, 2018 4:46 am
Forum: Advanced users
Topic: NFS boot
Replies: 35
Views: 5273

Re: NFS boot

I haven't got around to testing with rootfs yet, though I have now got the drive shared as ext4. I experimented with btrfs on my main rig maybe 3 - 4 years ago, and I forget why, but I had some problems and reverted back to ext4. It's possible that the FS has improved and whatever problems I had are...
by Roken
Fri May 04, 2018 11:35 pm
Forum: Beginners
Topic: Worth buying 64GB card for Raspberry Pi 3 Model B
Replies: 19
Views: 12918

Re: Worth buying 64GB card for Raspberry Pi 3 Model B

I'm currently working on getting my PIs to use an NFS drive for nfsroot, which will be much more robust, and allow much more storage, without the same dying issue that SD Cards have. Up to now, I've been hitting issues, but I think that was down to the way I had the network drive set up, so I'm tryi...
by Roken
Fri May 04, 2018 11:16 pm
Forum: Advanced users
Topic: NFS boot
Replies: 35
Views: 5273

Re: NFS boot

So, managed to get an FS working that will support a filesize for a loopback device (NTFS) but still failing. Can't understand why it didn't occur to me, though. Why use a questionable network solution via a restricted router, when I have PIs, and more specifically, one Pi that isn't too busy (Plex ...
by Roken
Wed May 02, 2018 7:21 pm
Forum: General discussion
Topic: NOOBS - Why?
Replies: 67
Views: 4522

Re: NOOBS - Why?

I'm surprised at the debate this has gotten. I asked the question out of a genuine curiosity, particularly since joining the Pi community and the forums NOOBS does seem to get it's fair share of help requests. Personally, I haven't used it, and so am not qualified to either praise nor criticise it. ...
by Roken
Tue May 01, 2018 5:00 am
Forum: Advanced users
Topic: NFS boot
Replies: 35
Views: 5273

Re: NFS boot

I tried getting an answer of BT themselves as to what filesystems are supported, but the question seemed too complex for them. I know I tried ext4 initially when I got the drive, and it was simply not seen. I've copied everything off, and so am currently doing a full (not quick) NTFS format. Once do...
by Roken
Mon Apr 30, 2018 10:48 pm
Forum: Advanced users
Topic: NFS boot
Replies: 35
Views: 5273

Re: NFS boot

Well, my main rig, which is getting as bit long in the tooth now, admittedly, but is still powerful, being a Phenom X4 with a GTX 680 - not to mention a stack of 6 HDs (2 x SSD and 4 spinners) is a touch more power hungry even when idle. The laptop 24/7 is a possibility, since it's a weak C2D, but m...
by Roken
Mon Apr 30, 2018 8:40 pm
Forum: General discussion
Topic: NOOBS - Why?
Replies: 67
Views: 4522

NOOBS - Why?

I see so many people with problems with NOOBS. Since Etcher is cross platform, and easy as Pi(e) - pun intended - to use, and both official and unofficial images are available, wouldn't it be easier for newbies to use that, and less traffic to make it the recommended way?
by Roken
Mon Apr 30, 2018 8:32 pm
Forum: General discussion
Topic: Full TeamViewer on pi
Replies: 1
Views: 299

Re: Full TeamViewer on pi

Why use teamviewer. It's just an expensive (either cost or resources) VNC. realvnc is licensed free on Pi (though that doesn't help on connected machines) and tigervnc is free. You can connect tigervnc over ssh for remote access.
by Roken
Mon Apr 30, 2018 8:16 pm
Forum: Advanced users
Topic: NFS boot
Replies: 35
Views: 5273

Re: NFS boot

I know I could set up the NFS server on my systems, but economically, having either running 24/7 (which would be a requirement) doesn't work. I've been using Linux for a lot of years (exclusively for maybe 12) and so I'm not scared of the learning curve. I'm currently exploring the FS capabilities o...
by Roken
Mon Apr 30, 2018 6:34 pm
Forum: Advanced users
Topic: NFS boot
Replies: 35
Views: 5273

Re: NFS boot

The drive is mounted normally as cifs, so I doubt it's a big problem. I'm in the process of creating the loopback device, and then I'll mount on my desktop (Arch Linux) and copy the rootfs to it, which should preserve permissions, symlinks etc. Now, question. I assume that the Pi doesn't use an init...
by Roken
Mon Apr 30, 2018 4:52 am
Forum: Advanced users
Topic: NFS boot
Replies: 35
Views: 5273

Re: NFS boot

Thank you for your detailed reply. You appear to have confirmed my suspicion that the FS is at fault.

It never occurred to me to try with a loop device, so good call. A project for the weekend.
by Roken
Sun Apr 29, 2018 7:39 pm
Forum: Advanced users
Topic: NFS boot
Replies: 35
Views: 5273

Re: NFS boot

Hoping extra info will help someone at least come up with a suggestion.

Leave it long enough, and I get a kernel panic, which shuts the CPU cores down because:

Code: Select all

Unable to mount rootfs on unknown block
by Roken
Sat Apr 28, 2018 8:29 pm
Forum: General discussion
Topic: Power supply for Raspberry Pi 3 cluster
Replies: 15
Views: 10110

Re: Power supply for Raspberry Pi 3 cluster

After advice here, I looked closely enough at specs, and bought an Amazon basics supply - https://www.amazon.co.uk/gp/product/B01 ... UTF8&psc=1

Now, only two PIs powered, but even when charging other stuff off the bank, there's no hint of undervoltage.
by Roken
Sat Apr 28, 2018 8:14 pm
Forum: Advanced users
Topic: NFS boot
Replies: 35
Views: 5273

Re: NFS boot

Addition: The problem could also be credentials for the NFS drive, but looking at https://www.kernel.org/doc/Documentation/filesystems/nfs/nfsroot.txt I see nothing that allows credentials to be passed. Normal boot with the NFS share mounted needs uid=1000,gid=100,username=xxxxxxx,password= Where xx...
by Roken
Sat Apr 28, 2018 10:33 am
Forum: Advanced users
Topic: NFS boot
Replies: 35
Views: 5273

NFS boot

I'm experimenting with booting my PIs with the rootfs on an NFS share. I have the FS set up on a driver connected via USB to my router (I believe it's FAT formatted - been a while - because it's a BT HomeHub which struggles with other filesystems). The drive is working and accessible (I can, and do ...
by Roken
Thu Apr 26, 2018 10:55 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Hope this is the right sub forum: Using phone to BT into raspbian as a keyboard...
Replies: 5
Views: 418

Re: Hope this is the right sub forum: Using phone to BT into raspbian as a keyboard...

I'm not sure of your intent. urserver will allow remote control from your phone using the companion android app (slightly crippled in the free version and worth paying for full).

If you also want to use the phone's internet connection, can you set your phone up as a WiFi hotspot?
by Roken
Thu Apr 26, 2018 10:01 am
Forum: Beginners
Topic: Jessie: how to create a desktop shortcut to a USB storage drv?
Replies: 17
Views: 1859

Re: Jessie: how to create a desktop shortcut to a USB storage drv?

It depends on your DE and filemanager, but as an example with XFCE and thunar:

Create a launcher on the desktop. The command to use in the launcher is:

Code: Select all

thunar /media/pi/USBDRV
You may need to mark it executable. Then, a double click will open it in your filemanager.
by Roken
Tue Apr 24, 2018 5:11 am
Forum: Media centres
Topic: Raspberry and 5.1 audio
Replies: 14
Views: 28712

Re: Raspberry and 5.1 audio

You suggest that you already have a PC plugged into the screen you wish to use. If so, (notwithstanding sharing the display) you can get the audio for free, if the PC is running Linux. Ensure that the PC is using properly configured pulseaudio for sound. On the Pi, install pulseaudio, and modify /et...
by Roken
Sun Apr 22, 2018 3:22 pm
Forum: General discussion
Topic: Power
Replies: 14
Views: 1042

Re: Power

I'm not going to get involved with the political arguments, but if the posted power is insufficient for, e.g. 4 Pis, can I at least have suggestions for something that is, please?
by Roken
Sun Apr 22, 2018 1:15 pm
Forum: General discussion
Topic: Power
Replies: 14
Views: 1042

Power

I apologise if this has been covered. A search dates back to 2014 as the most recent. At the moment, just a Pi 3B and a 3B+, though it's likely to be added to. One is turned over to retropie, and the other hosts a plex server an pihole. Later this week, they will be housed in a stackable case from m...
by Roken
Thu Apr 19, 2018 8:58 pm
Forum: Advanced users
Topic: Mount / on cifs
Replies: 1
Views: 228

Mount / on cifs

Is it possible to have the rpi 3b+ with /boot on the SD, and the root partition as a folder on a CIFS share, and if so, how? e.g. I currently have my 3B+ running entirely from the SDCard. It runs a plex server and pihole. The plex server finds it's media on a CIFS drive (it's NTFS formatted since it...
by Roken
Wed Apr 18, 2018 8:32 pm
Forum: Beginners
Topic: Location of application Evince
Replies: 6
Views: 879

Re: Location of application Evince

Most user installed programs will be in /usr/bin Except for the ones in /usr/local/bin, /bin, /sbin, /usr/sbin & /usr/local/sbin As a general rule, /usr/bin will contain core OS executables, /usr/sbin will be optional OS executables. General applications are usually in /usr/bin, and my /usr/local/s...
by Roken
Wed Apr 18, 2018 7:15 pm
Forum: Troubleshooting
Topic: emergency mode after editing fstab
Replies: 3
Views: 3099

Re: emergency mode after editing fstab

To add, is this a typo in your post

Code: Select all

Dependency failed for /mmnt/usb
If so, you are mounting to a non-existing mount point.
by Roken
Tue Apr 17, 2018 7:21 pm
Forum: General discussion
Topic: 18 GbSD Card copie to PC, copy from PC to new 16GB SD
Replies: 11
Views: 1130

Re: 18 GbSD Card copie to PC, copy from PC to new 16GB SD

pishrink on Linux seconded. I've had to use it a couple of times, and no issues whatsoever. (The last time was to move a 2.8Gb used install from a 64Gb SD Card to a 32Gb SD Card so that I could re-purpose the 64Gb).
by Roken
Tue Apr 17, 2018 7:17 pm
Forum: Beginners
Topic: Location of application Evince
Replies: 6
Views: 879

Re: Location of application Evince

Most user installed programs will be in /usr/bin

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