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Ubuntu 10.10 EXT question

post #1 of 5
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Any way to change from EXT4 to EXT3 in an Ubuntu 10.10 intallation without starting from scratch?

Reason I ask is I've used it for folding, and for some reason on a hard drive if you use EXT4 it takes many times longer to upload the file than in EXT3. But I've got a bunch of stuff configured and really don't want to do all that work again...so any way to change it relatively easily?
post #2 of 5
No, you can't convert EXTX to EXTX- as it will not work. Once your on EXT4 your on EXT4, there are extra features added that will not even allow you to mount it as a lower version of EXT. You might have other issues if it is slower, EXT4 should be much faster and safer than EXT3.
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post #3 of 5
well there are several ways to this, none of them "relatively" easy.

you could resize the partition, or use another harddrive. format that harddrive/partition as ext 3, then do a tar back up of your installation, and then untar it onto the new harddrive/partition, i'm sure you would need to reinstall grub to the new hdd/partition and mess around a bit with the fstab to accomplish this.

i would honestly say that is a bit more work, why don't you just creat a small ext3 partition on your existing harddrive, and move the folding@home program to that and then mount that partition at boot up thru fstab in your /home folder?
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post #4 of 5
disabling the journal might increase speed... BUUUUUUUUUT i doubt that the file system is truely the bottle neck on this issue ext4 is plenty fast
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post #5 of 5
Quote:
Originally Posted by transhour View Post
i would honestly say that is a bit more work, why don't you just creat a small ext3 partition on your existing harddrive, and move the folding@home program to that and then mount that partition at boot up thru fstab in your /home folder?
Second this, definitely the way to go
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