From f6a50ae86ca79b3bfbf39cf9be121fc6ae06ef99 Mon Sep 17 00:00:00 2001 From: Jessica Frazelle Date: Mon, 8 Dec 2014 10:18:17 -0800 Subject: [PATCH] add note to docs about overlay + btrfs Docker-DCO-1.1-Signed-off-by: Jessica Frazelle (github: jfrazelle) Upstream-commit: e6d8a17cf59657fbb2702d315b1a19713b5951c5 Component: cli --- components/cli/docs/sources/reference/commandline/cli.md | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/components/cli/docs/sources/reference/commandline/cli.md b/components/cli/docs/sources/reference/commandline/cli.md index 7ffdcabb54..577a4c68c0 100644 --- a/components/cli/docs/sources/reference/commandline/cli.md +++ b/components/cli/docs/sources/reference/commandline/cli.md @@ -180,7 +180,10 @@ share executable memory between devices. Use `docker -d -s btrfs -g /mnt/btrfs_p The `overlay` is a very fast union filesystem. It is now merged in the main Linux kernel as of [3.18.0](https://lkml.org/lkml/2014/10/26/137). -Call `docker -d -s overlay` to use it. +Call `docker -d -s overlay` to use it. +> **Note:** +> It is currently unsupported on `btrfs` or any Copy on Write filesystem +> and should only be used over `ext4` partitions. #### Storage driver options