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Home » Tech » Linux » Getting past read-only mode to modify file system in Linux single user mode

Getting past read-only mode to modify file system in Linux single user mode

Posted on December 1, 2012 by Vitaly Posted in Linux

Had to do this recently to a machine that wasn’t booting properly, needed to change fstab so the system would boot, but in single user mode, would come up in read-only mode. This fix was done specifically on a Centos 6.1 machine, but should really work for any linux distro, not just the Red Hat family. Using the mount command, you effectively passing the parameters to remount the currently mounted file system into read/write mode.

To fix, enter

 mount -o remount,rw /

and everything should be writable.

There’s actually a ton of options available with the mount command, some more info available here.

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