Repair readonly file system

• have root password ready
• reboot machine from vcenter whilst watching console
• console will prompt you after a while after it fails to check the disk, you need to type in the root password
• type fsck, this will run the manual fixdisk program
• just type y on the keyboard for every prompt until it finishes
• type reboot to reboot machine. If it doesnt reboot after 2 minutes, do a hard reboot
• it should boot up properly this time
• you can check if file system is writable by typing mkdir test
• if it creates folder, then remove it by typing rm -rf test

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