[mythtv-users] Best Filesystem Type?

James Warden warjamy at yahoo.com
Wed Apr 11 08:03:37 UTC 2007


I don't really understand the problem at the first place : when you install linux, you will be asked to partition your free disk space at some point. When you get to that point, you have at least two options :

- 1 - install your linux distro on a small partition, say 10GB max, formatted with ext3, and leave the remaining free space free. Later on, when you have booted your newly installed linux, you can create a very large partition using the remaining free space (using fdisk or cfdisk), reboot linux again, and format the new partition with JFS or XFS. Just don't make the new partition bootable :) Choose a mount point of your choice, say /mythtv, add this partition in your /etc/fstab and make it 'auto' to have it automounted at boot time. Use this big partition for your mythtv recordings, use the small ext3 partition for your mysql DB.

- 2 - do all the partitioning while you're installing linux. When I install e.g. debian, I just reject the default partitioning proposed, and create every partition manually (typically / - ext3 -   /home  - ext3 -  /data - xfs -  and swap - 256MB is enough - for a very minimal installation). 

J.

Brian Wood <beww at beww.org> wrote: 
On Apr 10, 2007, at 11:21 PM, David Brodbeck wrote:

> Robert Current wrote:
>> I was reading about MythTV for a few days before installing, and I
>> read because of the file size, ext2 and ext3 were not great choices,
>> but JFS was great...
>>
>> Then I burned the images of MythDora and KnoppMyth, and both use ext3
>> with no choice to use JFS, or ReiserFS, or any big journeying  
>> systems,
>> so... what's the story?
>>
>
> The main problem with ext3 is deletes of large files block access  
> to the
> filesystem while they're in progress.  MythTV has a workaround for  
> this
> called "slow deletes" that solves the problem.

It "solves" the  problem only if Myth is the only program performing  
deletes on that filesystem.

But having said that, I've been using an EXT3 filesystem for over a  
year with no problems, I'm just careful about not deleting anything  
over an hour long if a recording is happening.

The main thing about EXT3 is that the Linux support for it is stable  
as heck and very well de-bugged on all platforms. Every other  
filesystem is a crapshoot IMHO, even though they work well for a lot  
of folks.


Brian Wood
beww at beww.org



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