Backing Up Your Linux

Rob Williams · 08-26-2007, 10:00 PM

Backing up your computer is important. Don't be the sucker who loses important files and has to deal with it afterwards! In this how-to, you will learn about using rsync and lftp, writing your own scripts and adding them to crontab and of course, backing up to your external storage, NAS and also a remote server running Linux.

You can read the full article here and discuss it here.

linnerd40 · 08-27-2007, 07:46 AM

This is extremely helpful, thanks! Very well written too.

Rob Williams · 08-27-2007, 03:03 PM

Thanks man, glad you found it useful!

09-03-2007, 02:00 AM

There is something called Grsync which is a GTK+ UI on top of rsync.
The only issue I have in understanding how the updates happen or what output comes when one does that. How does it know the changes happen, does it make an index or does checksum of each file or what? Please lemme know. Thanx.

Rob Williams · 09-03-2007, 01:20 PM

I've never heard of Grsync, I will need to check it out sometime. As for how rsync works, I believe it first compares timestamps for each file and then digs deep into the file to figure out which is newer. The algorithm can be found here:

http://rsync.samba.org/tech_report/node2.html

Whenever you run rsync on a file, it creates an index, but I'm unsure where it's located, or how it's even stored. It is what keeps track of the files that are currently there though, and then add to it if you add more files to a specific folder or what have you. I wish their site explained the entire process a bit better, to be honest.

08-26-2007, 10:00 PM	#1
Rob Williams Editor in Chief Join Date: Jan 2005 Location: Atlantic Canada Posts: 8,921	Backing Up Your Linux Backing up your computer is important. Don't be the sucker who loses important files and has to deal with it afterwards! In this how-to, you will learn about using rsync and lftp, writing your own scripts and adding them to crontab and of course, backing up to your external storage, NAS and also a remote server running Linux. You can read the full article here and discuss it here. __________________ Intel Core 2 Quad Q9450 @ 3.20GHz, ASUS P5K Premium WiFi-AP, OCZ 8GB PC2-6400, EVGA GTX 285 1024MB Seagate 500GB, 750GB & 1TB, Pioneer 22x ODD, Corsair 1000HX, Thermalright Ultra-120, CM Storm Sniper Dell 2408WFP 24", ASUS Xonar Essence STX, Ultrasone PRO 750, Gentoo Linux (KDE 4.3.2, 2.6.31 Kernel) "Take care to get what you like, or you will be forced to like what you get!" - H.P. Baxxter Profiles: Last.fm \| Xbox Live \| Steam

08-27-2007, 03:03 PM	#3
Rob Williams Editor in Chief Join Date: Jan 2005 Location: Atlantic Canada Posts: 8,921	Thanks man, glad you found it useful! __________________ Intel Core 2 Quad Q9450 @ 3.20GHz, ASUS P5K Premium WiFi-AP, OCZ 8GB PC2-6400, EVGA GTX 285 1024MB Seagate 500GB, 750GB & 1TB, Pioneer 22x ODD, Corsair 1000HX, Thermalright Ultra-120, CM Storm Sniper Dell 2408WFP 24", ASUS Xonar Essence STX, Ultrasone PRO 750, Gentoo Linux (KDE 4.3.2, 2.6.31 Kernel) "Take care to get what you like, or you will be forced to like what you get!" - H.P. Baxxter Profiles: Last.fm \| Xbox Live \| Steam

09-03-2007, 02:00 AM	#4
Unregistered Guest Poster Posts: n/a	Grsync There is something called Grsync which is a GTK+ UI on top of rsync. The only issue I have in understanding how the updates happen or what output comes when one does that. How does it know the changes happen, does it make an index or does checksum of each file or what? Please lemme know. Thanx.

09-03-2007, 01:20 PM	#5
Rob Williams Editor in Chief Join Date: Jan 2005 Location: Atlantic Canada Posts: 8,921	I've never heard of Grsync, I will need to check it out sometime. As for how rsync works, I believe it first compares timestamps for each file and then digs deep into the file to figure out which is newer. The algorithm can be found here: http://rsync.samba.org/tech_report/node2.html Whenever you run rsync on a file, it creates an index, but I'm unsure where it's located, or how it's even stored. It is what keeps track of the files that are currently there though, and then add to it if you add more files to a specific folder or what have you. I wish their site explained the entire process a bit better, to be honest. __________________ Intel Core 2 Quad Q9450 @ 3.20GHz, ASUS P5K Premium WiFi-AP, OCZ 8GB PC2-6400, EVGA GTX 285 1024MB Seagate 500GB, 750GB & 1TB, Pioneer 22x ODD, Corsair 1000HX, Thermalright Ultra-120, CM Storm Sniper Dell 2408WFP 24", ASUS Xonar Essence STX, Ultrasone PRO 750, Gentoo Linux (KDE 4.3.2, 2.6.31 Kernel) "Take care to get what you like, or you will be forced to like what you get!" - H.P. Baxxter Profiles: Last.fm \| Xbox Live \| Steam

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08-27-2007, 07:46 AM	#2
linnerd40 Obliviot Join Date: Apr 2007 Posts: 40	This is extremely helpful, thanks! Very well written too.