From df58a92c8162e21aa722fa3a453ea4d7006db6f4 Mon Sep 17 00:00:00 2001 From: Harald Glatt Date: Tue, 14 May 2019 12:55:07 +0200 Subject: [PATCH] Updating migration guide - added: short, concise mention of the alternative migration method using the backup_and_restore script - changed: made it clear in the Warning on step 3 that this affects the target machine, not the source machine --- docs/i_u_m_migration.md | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/docs/i_u_m_migration.md b/docs/i_u_m_migration.md index 045fbc164..a74084f0a 100644 --- a/docs/i_u_m_migration.md +++ b/docs/i_u_m_migration.md @@ -1,5 +1,7 @@ #### Please note: This guide assumes you intend to migrate an existing mailcow server (source) over to a brand new, empty server (target). It takes no care about preserving any existing data on your target server and will erase anything within `/var/lib/docker/volumes` and thus any Docker volumes you may have already set up. +##### Alternatively, you can use the `./helper-scripts/backup_and_restore.sh` script to create a full backup on the source machine, then install Mailcow on the target machine as usual, copy over your `mailcow.conf` and use the same script to restore your backup to the target machine. + **1\.** Install [Docker](https://docs.docker.com/engine/installation/linux/) and [Docker Compose](https://docs.docker.com/compose/install/) on your new server. @@ -25,10 +27,10 @@ Please use the latest Docker engine available and do not use the engine that shi systemctl status docker.service ``` -**3\.** Run the following commands on the source machine (take care of adding the trailing slashes in the first path parameter as shown below!) - **WARNING: This command will erase anything that may already exist under `/var/lib/docker/volumes`**: +**3\.** Run the following commands on the source machine (take care of adding the trailing slashes in the first path parameter as shown below!) - **WARNING: This command will erase anything that may already exist under `/var/lib/docker/volumes` on the target machine**: ``` -rsync -aHhP --numeric-ids --delete /opt/mailcow-dockerized/ root@some.other.machine.net:/opt/mailcow-dockerized -rsync -aHhP --numeric-ids --delete /var/lib/docker/volumes/ root@some.other.machine.net:/var/lib/docker/volumes +rsync -aHhP --numeric-ids --delete /opt/mailcow-dockerized/ root@target-machine.example.com:/opt/mailcow-dockerized +rsync -aHhP --numeric-ids --delete /var/lib/docker/volumes/ root@target-machine.example.com:/var/lib/docker/volumes ``` **4\.** Shut down mailcow and stop Docker on the source machine.