LinuxQuestions.org
Support LQ: Use code LQ3 and save $3 on Domain Registration
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices


Reply
  Search this Thread
Old 11-05-2004, 03:30 AM   #1
Zuggy
Member
 
Registered: Mar 2004
Location: Pocatello, Idaho, USA
Distribution: Ubuntu
Posts: 256

Rep: Reputation: 30
ext2/ext3 what's the difference


Here's a question I've had for awhile and now that I'm starting to understand Linux better I need this question answered

What is the difference between the ext2 and ext3 filesystems and what are the pros and cons of each. I use ext2 on my laptop because ext3 never works but I'm using ext3 for my desktop and I really don't see much difference.

I'm trying to pull out of the realm of and need to know this to move on to the next level
 
Old 11-05-2004, 03:57 AM   #2
Steel_J
Member
 
Registered: Oct 2004
Location: Montreal, Canada
Distribution: Kubuntu 10.04, Mint 8 and Puppy 4.3.1
Posts: 355
Blog Entries: 1

Rep: Reputation: 31
Ext2 is the age old file system for Linux.

It is somewhat primitive a lot like fat32 is. It' has been supassed by many filesystems.

Nowadays filesystems are more robust because they are journaling filesystem. Like NTFS on NT/2000 and XP.

In Linux you can find ReiserFS, XFS, ext3 and many others.

ext3 is a largely adopted format now because it is based on ext2 but it uses journaling to protect file integrity. Journaling is the process of cataloguing and noting in a journal every file operation before they are started and keeping info to restore everything to original in case of an accident, power failure, disk damage, etc...

But being a cousin of ext2 it is backward compatible with ext2.

So in everyday to day usage you won't see much of a diffrerence, but one thing is certain with ext3 your files don't get corrupted, the system crashes a lot less and data is not damge by thingsl ike a hard reset for example.

In short it makes for a much stable operating system. ext2, much like fat32 as a tendencie to get corrupted or damaged easily and lose data.
 
Old 11-05-2004, 12:57 PM   #3
320mb
Senior Member
 
Registered: Nov 2002
Location: pikes peak
Distribution: Slackware, LFS
Posts: 2,577

Rep: Reputation: 48
Well I've lost 3 partitions and 10 gigs of .Ogg files using ext3 and/or reiserFS
OF course I did have backups.........but it's still painfull
I've never lost anything using ext2.............
take it for what it's worth............

Last edited by 320mb; 11-05-2004 at 12:58 PM.
 
Old 11-05-2004, 01:30 PM   #4
yano
Member
 
Registered: Nov 2004
Location: Slovak republic - Bratislava
Distribution: debian & gentoo
Posts: 43

Rep: Reputation: 15
Folks, does anyone know some good (brief but informationfull) document about linux filesystems?
Cause I understand a bit differences in Ext2 and Ext3, but i do not know anything about reiserFS...
Or is there some nice answer awaiting me in LQ? ;-))
 
Old 11-05-2004, 01:34 PM   #5
peacebwitchu
Member
 
Registered: Apr 2004
Distribution: Debian
Posts: 185

Rep: Reputation: 30
http://www.tldp.org/HOWTO/Filesystems-HOWTO.html
 
Old 11-05-2004, 05:43 PM   #6
Steel_J
Member
 
Registered: Oct 2004
Location: Montreal, Canada
Distribution: Kubuntu 10.04, Mint 8 and Puppy 4.3.1
Posts: 355
Blog Entries: 1

Rep: Reputation: 31
Losing data could be caused by many factors and I have lost data on many filesystems.

I use ext3 and never lost anything vital. The point is journaling filesystems are more reliable.

Otherwise as you say we would not need to backup.
 
Old 11-05-2004, 06:01 PM   #7
yano
Member
 
Registered: Nov 2004
Location: Slovak republic - Bratislava
Distribution: debian & gentoo
Posts: 43

Rep: Reputation: 15
Quote:
Originally posted by peacebwitchu
http://www.tldp.org/HOWTO/Filesystems-HOWTO.html
great stuff, thanks!
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
ext2 | ext3 bruse Linux - Newbie 3 03-03-2005 09:10 AM
Difference between ext2, ext3 & reiser file systems ch.keller Linux - Software 4 01-18-2005 07:16 PM
What's the difference between ext2 and ext3 sjia Linux - Newbie 9 01-31-2004 02:28 PM
ext2 or ext3? e1000 Linux - Distributions 1 10-30-2003 01:28 AM
ext2 ext3 and others safrout Linux - Hardware 2 05-01-2002 07:02 PM


All times are GMT -5. The time now is 12:49 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration