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Thread: EXT4 to XFS?

  1. #1
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    EXT4 to XFS?

    Hey guys, I currently use a 10GB "/" and remainder in "/home"

    I am looking to change my "/home" directory from ext4 to XFS.

    Can anyone please advise on how to do this please?

    Many thanks.

  2. #2
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    Re: EXT4 to XFS?

    Why do you want to change?
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    Tomorrow's an illusion and yesterday's a dream, today is a solution...

  3. #3
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    Re: EXT4 to XFS?

    Because I've attempted to tune EXT4 and I'm still not happy with the results, I'd like to try XFS before I settle with EXT4.

  4. #4
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    Re: EXT4 to XFS?

    There is no way to do an in place conversion, you would have to:

    • Boot from a Live CD
    • Copy all your data to a new device.
    • Reformat the partition as XFS.
    • Copy all of the data back.
    • Update /etc/fstab on your root partition with the new UUID of the XFS partition.
    • Reboot and keep your fingers crossed
    Cheesemill

  5. #5
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    Re: EXT4 to XFS?

    You may also have to manually download some other tools to run things like fsck as e2fsck is only for ext4.

    Overall ext4 seems best, only for very specific tasks do other file systems win on a test.
    Ubuntu 12.04 LTS - Benchmarking All The Linux File-Systems
    http://www.phoronix.com/scan.php?pag..._1204_fs&num=1
    Large HDD/SSD Linux 2.6.38 File-System Comparison: EXT3, EXT4, Btrfs, XFS, JFS, ReiserFS, NILFS2
    http://www.phoronix.com/scan.php?pag...38_large&num=1
    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  6. #6
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    Re: EXT4 to XFS?

    The xfsprogs package contain the check/repair tools as well as xfs dump utilities for backup purposes. You'll need it eventually because Ubuntu schedules periodic disk checks on boot. Without the packaged fsck.xfs (which does nothing, successfully), your home partition will refuse to mount at boot.

    Cheers!
    husband@wife$ make sandwich
    Permission denied
    husband@wife$ sudo make sandwich

  7. #7
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    Re: EXT4 to XFS?

    OK so I managed to change my /home partition from EXT4 to XFS, problem is when creating the XFS partition I get the following error:

    warning: device is not properly aligned /dev/md2

    I've read up on this but for the life of me can't find a solution.

    Anyone?

  8. #8
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    Re: EXT4 to XFS?

    Is the home partition a raid array?
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    Tomorrow's an illusion and yesterday's a dream, today is a solution...

  9. #9
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    Re: EXT4 to XFS?

    Yes it is, "/" is RAID1 and "/home" is RAID0

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