This article is dedicated to documenting methods of performing drive imaging (also called bare metal backups, or disk cloning). Drive imaging is a complete copy of all information on a drive, necessary to restore all of the data or entire operating system on a drive to the same state it was when the image was created. This is different from imaging a partition, where one is making a copy of an individual partition that resides on a drive, or backing up individual files and folders.

Please ensure you are comfortable with the information discussed before proceeding. Improperly executing a command may result in partial or complete data loss. Please double- or even triple-check your target device to avoid such catastrophic loss.

Source: DriveImaging – Community Help Wiki

The fstab masks has puzzled me a little, because it’s not as the unix file permissions, so I thought to share the result of my research for anyone who felt the same.The fstab exists in /etc/fstab, so let’s examine the fstab a little bit.

Source: Fstab Permission Masks Explained | Omaroid

I’ve got an entry for an external harddrive in my fstab:

UUID="680C0FE30C0FAAE0" /jgdata ntfs noatime,rw

But sometimes this drive isn’t plugged in at boot time. This leaves me half way through a boot, with a prompt to “Continue Waiting, press S or press M” but no keypress has any affect at this stage (including Ctrl–Alt–Delete, not even caps-lock).

Short of writing a script to check the output of fdisk -l, how can I mount this drive at boot time only if it is present? It would be handy to have an fdisk entry for this drive, so I can just type mount /jgdata instead of needing a device name.

Source: Mount an external drive at boot time only if it is plugged in – Ask Ubuntu

I want to upgrade to Ibex. I should copy /home to an external usb 2.0. Everytime I boot with this usb device attached sudo fdisk -l shows the device with a different /dev name, for example, at the moment, (this session) it’s mark@Lexington-19:~$ sudo fdisk -l Disk /dev/sda: 320.0 GB, 320072933376 bytes 255 heads, 63 sectors/track, 38913 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x00000080 Device Boot Start End Blocks Id

Source: [ubuntu] [SOLVED] External usb drive is sometimes sdb, sdc, sdd

DebianOn is an effort to document how to install, configure and use Debian on some specific hardware. Therefore potential buyers would know if that hardware is supported and owner would know how get the best out of that hardware.

The purpose is not to duplicate the Debian Official Documentation, but to document how to install Debian on some specific hardware.

If you want to contribute, you should read HowTo Contribute and see also Rating

Source: InstallingDebianOn – Debian Wiki

Just US$14.16 + free shipping, buy SQ8 Mini DV Camera 1080P Full HD Car DVR online shopping at GearBest.com.

Source: SQ8 Mini DV Camera 1080P Full HD Car DVR-14.16 Online Shopping| GearBest.com

Source: repro SIP proxy

Hi, I am using tracker.example.com to find torrent files however within the last few days every time I try to download, Transmission won’t connect to any peers. No settings have changed so I really have no idea what is causing the problem. Any ideas? Anything at all would be much appreciated.

Source: Transmission not connecting to Peers – Transmission

Hi all

By way of intoduction: I am no techie but, having run a medium traffic site on my own VPS for 12 months, I guess I’m not a totally tech-dummy either. My VPS is Centos 5.5 and I do most admin with Webmin + a little ssh console stuff. The site’s primary purpose is to host a fairly large MediaWiki installation – software I am now fairly proficient with. VPS is in Ireland and I’m in UK running a small network of windows and linux boxes for different things.

A few months ago I started to host a mirror on the vps. It requires regular updates from large zip files provided exclusively via the bittorrent protocol. I was used to downloading torrents to my home network and began by doing the same with the big zip files and then uploading to the VPS – total waste of bandwidth and time. Enter a clear need for suitable headless server bittorrent software with remote admin for the VPS.

It turns out Centos is NOT the best when it comes to the cutting-edge stuff but I’m stuck with it. I started with the Standard Bittorrent client. Soon became fed up with no Magnet facility or workable remote Web or other GUI – plus other niggles. Tried to graduate to Rtorrent + RUtorrent Web UI. Won’t bore you with the time that wasted – though it had to do with with the near impossibility of compiling Rtorrent with RPC capability on Centos. Anyway, here I am with a working Transmission installation – but issues.

I have the daemon running and the web UI working OK. I can download the files that triggered the need in the first place very well (12Mb in about 30 seconds when unrestricted !!). My problem is that the installation does not seem to want to to do any seeding and neither will it resolve Magnet links. I can’t find any clues in the logs either. The Transmission log simply reports that the seeding has timed-out after the set interval of inactivity and the torrent is paused. If I download the same files to my home machines there is plenty of seeding activity going on so it’s not that there is no demand.

Also, loading a magnet link gets stuck on ‘retrieving metadata’ at 0.00% forever.

Whilst I can currently use it for what I need it’s hardly in the spirit of p2p protocol not to share ANY of it.

Any pointers, observation, suggestions welcome.

Source: New installation problems – Transmission

While it’s not every day that you need to add a new hard drive to your computer, the task does not have to be complicated. Use this guide to help you install a new hard drive with an existing Ubuntu system, and partition it for use. Before beginning, you need to consider for what you will be using the hard drive.

• Will the drive be used only with Ubuntu?
• Will the drive need to be accessible from both Ubuntu and Windows?
• How do you want to divide the free space? As a single partition, or as several?

This guide goes over procedures for a single partition drive install only. Multiple partition drive installations are not very hard, and you may very well figure it out by using this guide; however, make sure you add an entry in /etc/fstab for each partition, not just the drive.

Source: InstallingANewHardDrive – Community Help Wiki

If you want more than just pre-shared keys OpenVPN makes it easy to setup and use a Public Key Infrastructure (PKI) to use SSL/TLS certificates for authentication and key exchange between the VPN server and clients. OpenVPN can be used in a routed or bridged VPN mode and can be configured to use either UDP or TCP. The port number can be configured as well, but port 1194 is the official one. And it is only using that single port for all communication.

Source: OpenVPN

Source: VPN – Ubuntu Wiki