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August 11, 2014

overlayfs, unknown filesystem type



I'm running on ubuntu 14.04 and get "unknown filesystem type" when I try to use overlayfs.

Any hints to get this working? Doing a search this seems like it should work out of the box.

I don't see overlayfs registered in /proc/filesystems.

Here is what I'm doing:
sudo apt-get install update
sudo apt-get install initramfs-tools
sudo apt-get install overlayroot
cd /tmp
mkdir upper
mkdir lower
mkdir overlay
sudo mount -t overlayfs -o lowerdir=/tmp/lower,upperdir=/tmp/upper none /tmp/overlay

mount: unknown filesystem type 'overlayfs'

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