View Poll Results: Ext4 in?

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  • Ext4 by default

    344 43.05%
  • Ext4 by option

    433 54.19%
  • No Ext4

    15 1.88%
  • Other

    7 0.88%
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Thread: Ext4 by default

  1. #1
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    Ext4 by default

    Please add ext4fs and choose for installation...
    Reasons:
    1. Speedup file removing
    2. Better and faster allocator
    3. Bigger max file size
    4. Precision timestamps
    5. Bigger max number of folder inclusion
    6. Faster indexation
    7. Faster checking
    8. Re-allocation for better video recording, torrent downloading etc.

    http://en.wikipedia.org/wiki/Ext4
    ------------------------------------------------------------------------------------------------------------

    == To test is needed ==
    * Kernel 2.6.28 DONE
    * ubuntu-installer that support ext4 DONE
    * e2fsprogs version 1.41.0 or higher is required DONE

    == To enable to /boot/ on the same partition. ==
    One of the next
    a) grub support ext4 DONE
    b) grub2 as default bootloader NOT AS DEFAULT


    == Tools ==
    * The next release of GParted (0.4.2). RELEASED
    Last edited by int; February 9th, 2009 at 08:13 PM.

  2. #2
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    Re: Ext4 by default

    I'd definitely want to take ext4 for a spin, but as default it would really be bad if there's problems. Better let it be optional so people have to choose to take that risk.

    It normally takes years of usage to be sure there's no surprises, right?

  3. #3
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  4. #4
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    Re: Ext4 by default

    Quote Originally Posted by sdowney717 View Post
    Indeed, I have been running on Ext4 since early in the F9 development cycle. I have never seen a problem with using it on my machines, and now that it has left behind the development status upstream it signifies a good time to adopt.

    If Fedora 10 had not been in a development and feature freeze, the maintainer of the feature has expressed a desire to have pushed for the switch to be flipped and default to ext4. I suspect this will happen first thing after F11 development opens. As such it would probably be a good time for Ubuntu to adopt as well, share the experiences yet not the pain (since ext4 is an evolution of the stable ext3 code and has been tested heavily in Fedora for a year every major bug should have been shaken out of it making it low risk).

    I would strongly favor adopting ext4, it has been very good to me and many other people. Also I have not heard any horror stories of ext4 eating babies from any of the testers which is also a very encouraging sign.
    On strike during the Oneiric cycle due to ungratefulness of Ubuntu.


  5. #5
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    Re: Ext4 by default

    There should also be ext4 support in Grub, so that we can boot from an ext4 filesystem.
    But I get it is not too hard to develop that in 6 months, or is it?

  6. #6
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    Re: Ext4 by default

    Quote Originally Posted by Timon&Pumba View Post
    There should also be ext4 support in Grub, so that we can boot from an ext4 filesystem.
    But I get it is not too hard to develop that in 6 months, or is it?
    I believe openSUSE had a Google Summer of Code student who worked on this, I don't know how far along that project has come though. But if we can't make this work before Jaunty, the simple solution would be to create /boot on a small separate ext3 partition (which is also a good idea since that allows us to mount it only on demand, lowering the risk of accidently kernel image corruption).

    http://code.google.com/soc/2008/suse...DC4C762E7EE6D7

    Grub2 apparently supports EXt4 with extends, so that is one solution right there though not without issues.
    http://www.mail-archive.com/bug-grub.../msg11692.html
    Last edited by gnomeuser; November 1st, 2008 at 10:30 AM. Reason: add grub2 mailing list link
    On strike during the Oneiric cycle due to ungratefulness of Ubuntu.


  7. #7
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    May 2005
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    Re: Ext4 by default

    By default would be preferable, but not if there's more than the absolute tiniest risk of data loss.

  8. #8
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    Re: Ext4 by default

    Now that it has been out of development it should be available at least as an option. There is no need to rush and enable it by default just yet - anyone that wants it can migrate from ext3 easily.

  9. #9
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    Re: Ext4 by default

    Quote Originally Posted by Timon&Pumba View Post
    There should also be ext4 support in Grub, so that we can boot from an ext4 filesystem.
    But I get it is not too hard to develop that in 6 months, or is it?
    Well...

    Ext4 is hardened with kernel 2.6.28 and with RC2 some bugs are fixed

    http://lkml.org/lkml/2008/10/26/159

    This one is also important:

    http://ext4.wiki.kernel.org/index.php/Ext4_Howto

    For people who are running Ubuntu

    For people who are running Ubuntu, it is *highly* recommended that you download a set of modified util-linux packages and install them. Packages for Ubuntu Hardy are available here. These packages revert a change made by Ubuntu to use the volid library instead of the blkid library. The volid library has a number of shortcomings, including that they don't work on freshly created filesystems or swap devices until after you reboot (since it is tied to udev probing) and the volid library doesn't understand ext4dev filesystems. The blkid library is much better, and Debian uses the blkid library for util-linux. Unfortunately, Ubuntu chose to make this reason for some unknown reason. For other versions of Ubuntu, the patch that was applied can be found here.

    So this must be clarified and also that testing starts as soon as possible.

    We cannot let others do the "hard work". !!!


    I don't believe its possible with default EXT4, but maybe...

    (This also means that users which understands backups can test....)

  10. #10
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    Re: Ext4 by default

    I'd rather choose xfs or jfs, both of which seem to perform better than ext2/3 and have been longer around than ext4

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