Backing up your Home Assistant configuration to USB drive. A good plus side is that you don’t need to mask all your passwords since the backup is locally at your home/residence.
First you need a USB drive. Once you have one you need to prepare it to be used on your device.
Once connected you want to format/work with the drive. To know what path it is in, you can check with
# dmesg | grep sd [ 0.909712] sdhci: Secure Digital Host Controller Interface driver [ 0.916414] sdhci: Copyright(c) Pierre Ossman [ 0.923366] sdhost: log_buf @ bac07000 (fac07000) [ 0.989001] mmc0: sdhost-bcm2835 loaded - DMA enabled (>1) [ 1.049095] sdhci-pltfm: SDHCI platform and OF driver helper [726257.743301] sd 0:0:0:0: Attached scsi generic sg0 type 0 [726259.184810] sd 0:0:0:0: [sda] 124846080 512-byte logical blocks: (63.9 GB/59.5 GiB) [726259.185603] sd 0:0:0:0: [sda] Write Protect is off [726259.185613] sd 0:0:0:0: [sda] Mode Sense: 23 00 00 00 [726259.186432] sd 0:0:0:0: [sda] No Caching mode page found [726259.186445] sd 0:0:0:0: [sda] Assuming drive cache: write through [726259.206085] sda: sda1 [726259.209004] sd 0:0:0:0: [sda] Attached SCSI removable disk
Here we see we have a drive on
/dev/sda1. We assume you created a partition on the drive to start with. This can be any type of partition. Preferred is a Linux filesystem type so you can set permissions!
Mount the drive (as root) to
# mount /dev/sda1 /media/
Change into it and create a folder called
hassbackup and change the ownership to the user that runs Home Assistant. In my case group and user are both
# cd /media/ /media# mkdir hassbackup /media# chown homeassistant:homeassistant hassbackup/ /media# ls -al total 28 drwxr-xr-x 4 root root 4096 Apr 29 10:36 . drwxr-xr-x 22 root root 4096 Mar 22 18:37 .. drwxr-xr-x 2 homeassistant homeassistant 4096 Apr 29 10:36 hassbackup drwx------ 2 root root 16384 Apr 29 10:18 lost+found
You can ignore ‘lost+found’.
In order to preserve space on your drive we use zip. Install that too.
/media# apt-get install zip Reading package lists... Done Building dependency tree [...] Setting up zip (3.0-8) ...
homeassistant user and place the following script to a place of your liking.
# wget https://gist.githubusercontent.com/riemers/041c6a386a2eab95c55ba3ccaa10e7b0/raw/86727d4e72e9757da4f68f1c9d784720e72d0e99/usb_backup.sh
Make the downloaded script executable.
# chmod +x usb_backup.sh
Open up the file and change the paths you want to use, then simply run the
$ .homeassistant/extraconfig/shell_code/usb_backup.sh [i] Creating backup [i] Backup complete: /media/hassbackup/hass-config_20170429_112728.zip [i] Keeping all files no prunning set
In order for this to automatically make a backup every night at 3 am, you can add a crontab for it as the
Change below path to where you placed the
usb_backup.sh and run the following line.
(crontab -l 2>/dev/null; echo "0 3 * * * /home/homeassistant/.homeassistant/extraconfig/shell_code/usb_backup.sh") | crontab -
This does not automatically mount your USB drive at boot. You need to do that manually or add a line to your
If your drive is on
/dev/sda1, you could add an entry to your
/etc/fstab like so:
/dev/sda1 /media ext4 defaults,noatime 0 1
Manual step to mount the USB drive:
# mount /dev/sda1 /media