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Thread: Resizing active ext4 partition on Lucid, is it safe?

  1. #1
    Join Date
    Jan 2007
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    156

    Resizing active ext4 partition on Lucid, is it safe?

    I am currently dual booting Lucid and Karmic. My plan was to do a fresh install of Lucid and gradually move my stuff over from Karmic. Now that that is done, I have no use for Karmic and want delete the partition and free up the drive space its using.

    How safe is it to resize the active ext4 partition on Lucid?

    I read some reports where data loss occurred when using Gparted on Jaunty to resize ext4. Is this still a problem? The very last thing I want to happen is data loss, or end up having to reinstall the OS, which would take me hours.

    I am using Lucid 64 bit.

    Any thoughts would be appreciated. I probably won't even risk it, but just was wondering how safe it is.

  2. #2
    Join Date
    Jul 2006
    Location
    Lancashire
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    Hidden!
    Distro
    Ubuntu 11.04 Natty Narwhal

    Re: Resizing active ext4 partition on Lucid, is it safe?

    No, don't risk it.
    Use Gparted from the Ubuntu LiveCD.

  3. #3
    Join Date
    Apr 2008
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    AZ
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    2,063
    Distro
    Ubuntu

    Re: Resizing active ext4 partition on Lucid, is it safe?

    you should not resize a mounted partition. boot off the liveCD first and while it is not mounted, then you can resize it. of course always backup before modifying your partitions.

  4. #4
    Join Date
    Jan 2007
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    $here ? $here : $there
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    3,717
    Distro
    Ubuntu 8.04 Hardy Heron

    Re: Resizing active ext4 partition on Lucid, is it safe?

    I would be surprised if you can resize an ext4 partition while it's mounted but, even if you can, I would recommend using a live CD to do the resize. ext* partition resizes are fairly (extremely?) reliable using that method. Having said that, having a full backup of your data is highly encouraged before doing something like that.
    Don't try to make something "fast" until you are able to quantify "slow".

  5. #5
    Join Date
    Sep 2009
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    8,874
    Distro
    Ubuntu Development Release

    Re: Resizing active ext4 partition on Lucid, is it safe?

    Ubuntu does not have a virtual partition device for the main OS, as suggested you have to do it from a live cd or any other partitioning cd that is linux friendly.

    If your question is can you safely re-size the partition from a live cd you should have no problems, but have everything backed up just in case, anything can happen and none of us know your setup.

  6. #6
    Join Date
    Jan 2007
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    156

    Re: Resizing active ext4 partition on Lucid, is it safe?

    Thank you everyone for the replies.

    I think I will just format the karmic partition and use it for data storage. I don't want to risk obliterating my nice Lucid install

    How would I go about cleaning out the karmic references in Grub after formatting my karmic partition? sudo update-grub ?

  7. #7
    Join Date
    Sep 2009
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    8,874
    Distro
    Ubuntu Development Release

    Re: Resizing active ext4 partition on Lucid, is it safe?

    Quote Originally Posted by occams_beard View Post
    Thank you everyone for the replies.

    I think I will just format the karmic partition and use it for data storage. I don't want to risk obliterating my nice Lucid install

    How would I go about cleaning out the karmic references in Grub after formatting my karmic partition? sudo update-grub ?
    If you just delete or reformat the Karmic partition I think the update-grub should remove Karmic from grub. If you have any problems or need more info you can post sudo fdisk -l and that will tell us what is actually there as far as partitions go. l=small case L

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