Here's the command you need: mount -o remount,rw / - Mike Ashley M. Kirchner wrote:
François Patte wrote:Because the filesystem is mounted read-only when you log in for maintenance. You have to remount it 'rw' to be able to make changes to it. Read 'mount's man page for the option to remount a partition.I was root, the fstab file has write permission for root, but it was impossible to modify this file.... WHY?