Browse code
add note to docs about overlay + btrfs
Docker-DCO-1.1-Signed-off-by: Jessica Frazelle <jess@docker.com> (github: jfrazelle)
Jessica Frazelle authored on 2014/12/09 03:18:17Showing 1 changed files
| ... | ... |
@@ -180,7 +180,10 @@ share executable memory between devices. Use `docker -d -s btrfs -g /mnt/btrfs_p |
| 180 | 180 |
|
| 181 | 181 |
The `overlay` is a very fast union filesystem. It is now merged in the main |
| 182 | 182 |
Linux kernel as of [3.18.0](https://lkml.org/lkml/2014/10/26/137). |
| 183 |
-Call `docker -d -s overlay` to use it. |
|
| 183 |
+Call `docker -d -s overlay` to use it. |
|
| 184 |
+> **Note:** |
|
| 185 |
+> It is currently unsupported on `btrfs` or any Copy on Write filesystem |
|
| 186 |
+> and should only be used over `ext4` partitions. |
|
| 184 | 187 |
|
| 185 | 188 |
#### Storage driver options |
| 186 | 189 |
|