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Thread: Filesystem Mounted as Read Only

  1. #1
    Join Date
    Mar 2011
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    Connecticut
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    71
    Distro
    Kubuntu 12.10 Quantal Quetzal

    Exclamation Filesystem Mounted as Read Only

    I was just doing normal web browsing, and I suddenly started getting error messages because I didn't have permission to write to my disk. I booted into recovery mode and tried typing
    Code:
    chown -R me:me .
    in my home directory, but I got the same error. Right now, I'm posting this from a live CD I have lying around, and I'm in the process of backing up my drive. How do I fix this?

  2. #2
    Join Date
    Apr 2012
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    5,698

    Re: Filesystem Mounted as Read Only

    To remount the filesystem as read-write from within recovery mode you can do

    Code:
    mount -o remount,rw /
    *note there is no space between remount and rw

    HOWEVER I can think of no good reason why your home dir ownership would spontaneously change so it sounds like you have other issues - maybe a failing disk? or your filesystem full or damaged?

    Also DON'T do use the relative path '.' to change ownership in recovery mode - you won't be in your user home dir and it will screw up system permissions. If you still think you have an ownership problem you should do

    Code:
    chown -R you:you /home/you

  3. #3
    Join Date
    Feb 2005
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    Melbourne, Australia
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    Ubuntu 12.04 Precise Pangolin

    Re: Filesystem Mounted as Read Only

    Quote Originally Posted by Orcris View Post
    I was just doing normal web browsing, and I suddenly started getting error messages because I didn't have permission to write to my disk. I booted into recovery mode and tried typing
    Code:
    chown -R me:me .
    in my home directory, but I got the same error. Right now, I'm posting this from a live CD I have lying around, and I'm in the process of backing up my drive. How do I fix this?
    Filesystems are mounted RO when they are damaged.

    Use the Live CD to do a fsck on the partition (or use the Disk Utility).
    Regards, David.
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  4. #4
    Join Date
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    Kubuntu 12.10 Quantal Quetzal

    Re: Filesystem Mounted as Read Only

    I ran an fsck, and it seems like it fixed the problems. What types of things could corrupt my disk?
    Last edited by Orcris; August 8th, 2012 at 06:04 PM.

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