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by Roken
Mon Apr 30, 2018 8:16 pm
Forum: Advanced users
Topic: NFS boot
Replies: 35
Views: 5996

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: 5996

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: 5996

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: 5996

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: 10689

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: 5996

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: 5996

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: 468

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: 2196

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: 30217

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: 1210

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: 1210

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: 255

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: 1003

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: 3561

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: 1258

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: 1003

Re: Location of application Evince

Most user installed programs will be in /usr/bin
by Roken
Tue Apr 17, 2018 7:16 pm
Forum: General discussion
Topic: what the differeance between these os?
Replies: 7
Views: 848

Re: what the differeance between these os?

What you can gain by using the lite version is storage. You can tailor the installation to your own needs (and you can still install a desktop if you want, but without extraneous software that you don't need). However, as has been mentioned, if you aren't familiar with raspbian/debian - then wait un...
by Roken
Tue Apr 17, 2018 7:13 pm
Forum: Troubleshooting
Topic: Bash script doesn't work as i hoped for
Replies: 6
Views: 470

Re: Bash script doesn't work as i hoped for

Also, not sure what your "else " is for, unless you've truncated that for illustrative purposes.
by Roken
Tue Apr 17, 2018 7:07 pm
Forum: Beginners
Topic: Beginners Error = Destroyed Micro SD
Replies: 6
Views: 643

Re: Beginners Error = Destroyed Micro SD

Add me to the list. Fortunately, after you do it once, you won't do it again.
by Roken
Fri Apr 13, 2018 9:45 pm
Forum: Beginners
Topic: How often to run 'sudo apt-get dist-upgrade'
Replies: 12
Views: 3170

Re: How often to run 'sudo apt-get dist-upgrade'

dist-upgrade is a once per generation thing. From Jessie to Stretch, and not again until the next.
by Roken
Mon Apr 09, 2018 7:08 pm
Forum: General discussion
Topic: Well, that was fun
Replies: 2
Views: 441

Re: Well, that was fun

You're right, it would have probably been quicker, but then I'd have had to remember the changes I'd made and make them again.

Making the changes is not a problem, remembering what they were is. ;)
by Roken
Mon Apr 09, 2018 7:04 pm
Forum: General discussion
Topic: 20 Useful Commands for Linux Newbies
Replies: 11
Views: 1109

Re: 20 Useful Commands for Linux Newbies

The explanation of cd at the end muddies it by capitalising the "C", which is, of course, wrong.
by Roken
Sun Apr 08, 2018 8:35 pm
Forum: Beginners
Topic: Can I swap sd cards with different OSs on the same Pi?
Replies: 9
Views: 893

Re: Can I swap sd cards with different OSs on the same Pi?

Not to mention, if you have more than one pi, the ability to turn any of them over to whatever OS suits the requirement at the time is a bonus.

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