By donmc, 31 January, 2017

The Raspberry Pi 3 Model B is the third generation Raspberry Pi with a 64-bit 1.2GHz quad-core processor, 1GB of RAM, WiFi (b/g/n), and Bluetooth 4.1!

The latest Raspberry Pi retains the same overall form factor as previous models ensuring compatibility with existing add-on boards (HATs) however some minor changes to the layout and more powerful processor mean we've redesigned our Pibow case.

By donmc, 19 November, 2016
root@pve:/var/lib/vz/dump# pct restore -storage local-lvm --rootfs 4 300 vzdump-lxc-200-2016_11_19-12_23_24.tar.gz
  Logical volume "vm-300-disk-1" created.
mke2fs 1.42.12 (29-Aug-2014)
Discarding device blocks: done                            
Creating filesystem with 1048576 4k blocks and 262144 inodes
Filesystem UUID: 602ba375-c829-40d2-a1bb-8275d5ce9407
Superblock backups stored on blocks: 
        32768, 98304, 163840, 229376, 294912, 819200, 884736

Allocating group tables: done                            
Writing inode tables: done                            
By donmc, 18 June, 2016

This was very useful for a corrupted song db in itunes:

You can use a playlist to collect dead tracks.
Create new regular playlist ā€“ Playlist1
Select whole library and drag to Playlist1
Create new Smart Playlist with the rule: Playlist is not Playlist1
Live updating checked ā€“ after you run it, uncheck live updating or you may not be able to delete tracks.
This playlist should contain all the dead tracks
Use shift-del to remove from library

By donmc, 12 June, 2016

This is a bit exciting for me - less so for anyone else I guess :(
But it has taken me a while to get to this point.

Took a snapshot backup from the office proxmox V3.x server, and brought it home t o convert to LXC (Linux Container) format on a proxmox 4.2 server (apparently LXC is the go nowadays - who knew?)

Here's the magic bit:

By donmc, 3 May, 2016

I have been grappling with this for a while - turns out it was something very simple:

grub-mkdevicemap -n
update-grub

root@pve:~# grub-mkdevicemap -n
root@pve:~# update-grub
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-2.6.32-39-pve
Found initrd image: /boot/initrd.img-2.6.32-39-pve
Found memtest86+ image: /boot/memtest86+.bin
Found memtest86+ multiboot image: /boot/memtest86+_multiboot.bin
done

By donmc, 2 June, 2015

I have always found the boot area a difficult one to understand.
Take this link as an example:
http://paste.ubuntu.com/11527748/

And AFTER the repair:
http://paste.ubuntu.com/11527984/ <-- This one Failed...

Another try - it inlcuded a re-install of Grub
Please write on a paper the following URL:
http://paste.ubuntu.com/11529742/

That's the out put from my laptop after I munged the disk arrangement adding a larger drive.

install Boot-Repair in Ubuntu

By donmc, 1 February, 2015
Will typically give you and error message like this:
Could not login with user ID #0. This is typically caused by importing a MySQL database dump from a faulty tool [error] which re-numbered the anonymous user ID in the users table.
By donmc, 3 January, 2015
This is considered good practice for any linux platform that has publicly addressable interfaces... Of course you will need to setup PKI public/private keys for any secure login. I am not suggesting that you turn off authentication entirely !
I had a VPS linux host out there untended for a while, and the hackers find it irresistible - there were 11,000+ authentication failures in the logs.

To stop password authentication by sshd, just add these entries to your /etc/sh/sshd_config file: