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A backup solution towards an USB drive (#2528)
You can add this one under the backup category too.
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Erik-jan Riemers
Fabian Affolter
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source/_docs/ecosystem/backup/backup_usb.markdown
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---
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layout: page
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title: "Configuration Backup to USB drive"
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description: "Instructions how backup your Home Assistant configuration to USB stick"
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date: 2017-04-29 11:00
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sidebar: true
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comments: false
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sharing: true
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footer: true
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---
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Backing upyour Home Assistant configuration to USB.
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A good plus side is that you don't need to mask all your passwords since the backup is locally at your home/residence.
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### {% linkable_title Requirements %}
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First you need a USB stick. Once you have one you need to prepare it to be used on your device.
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Once connected you want to format/work with the drive. To know what path it is in, you can check with dmesg.
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```
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root@hassbian:/media# dmesg|grep sd
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[ 0.909712] sdhci: Secure Digital Host Controller Interface driver
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[ 0.916414] sdhci: Copyright(c) Pierre Ossman
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[ 0.923366] sdhost: log_buf @ bac07000 (fac07000)
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[ 0.989001] mmc0: sdhost-bcm2835 loaded - DMA enabled (>1)
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[ 1.049095] sdhci-pltfm: SDHCI platform and OF driver helper
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[726257.743301] sd 0:0:0:0: Attached scsi generic sg0 type 0
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[726259.184810] sd 0:0:0:0: [sda] 124846080 512-byte logical blocks: (63.9 GB/59.5 GiB)
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[726259.185603] sd 0:0:0:0: [sda] Write Protect is off
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[726259.185613] sd 0:0:0:0: [sda] Mode Sense: 23 00 00 00
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[726259.186432] sd 0:0:0:0: [sda] No Caching mode page found
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[726259.186445] sd 0:0:0:0: [sda] Assuming drive cache: write through
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[726259.206085] sda: sda1
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[726259.209004] sd 0:0:0:0: [sda] Attached SCSI removable disk
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```
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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. Preffered is a linux one so you can set permissions!
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Mount the drive (as root) to /media
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```
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root@hassbian:~# mount /dev/sda1 /media/
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```
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### {% linkable_title Prepare USB Stick %}
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Cd into it and create a folder called 'hassbackup' and chown it to the user that runs homeassistant. In my case group and user are both homeassistant.
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```
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root@hassbian:~# cd /media/
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root@hassbian:/media# mkdir hassbackup
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root@hassbian:/media# chown homeassistant:homeassistant hassbackup/
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root@hassbian:/media# ls -al
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total 28
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drwxr-xr-x 4 root root 4096 Apr 29 10:36 .
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drwxr-xr-x 22 root root 4096 Mar 22 18:37 ..
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drwxr-xr-x 2 homeassistant homeassistant 4096 Apr 29 10:36 hassbackup
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drwx------ 2 root root 16384 Apr 29 10:18 lost+found
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```
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You can ignore 'lost+found'.
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### {% linkable_title Install Dependency %}
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In order to preserve space on your drive we use zip. Install that too.
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```
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root@hassbian:/media# apt-get install zip
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Reading package lists... Done
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Building dependency tree
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etc etc etc
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Setting up zip (3.0-8) ...
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```
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### {% linkable_title Install & run script %}
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Become the homeassistant user and place the following [script](https://gist.github.com/riemers/041c6a386a2eab95c55ba3ccaa10e7b0) to a place of your liking.
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Don't forget to 'chmod +x usb_backup.sh'
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Open up the file and change the paths you want to use, then simply run the usb_backup.sh
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```
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homeassistant@hassbian:~ $ .homeassistant/extraconfig/shell_code/usb_backup.sh
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[i] Creating backup
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[i] Backup complete: /media/hassbackup/hass-config_20170429_112728.zip
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[i] Keeping all files no prunning set
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```
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### {% linkable_title Crontab %}
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In order for this to automaticly make a backup every night at 3, you can add a crontab for it as the homeassistant user.
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Change below path to where you placed the usb_backup.sh and run the following line.
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```
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(crontab -l 2>/dev/null; echo "0 3 * * * /home/homeassistant/.homeassistant/extraconfig/shell_code/usb_backup.sh") | crontab -
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```
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### {% linkable_title Auto mount %}
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This does not automaticly mount your usb drive at boot. You need to do that manually or add a line to your /etc/fstab
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If your drive is on /dev/sda1, you could add a entry to your /etc/fstab like so:
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```
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/dev/sda1 /media ext4 defaults,noatime 0 1
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```
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Manual: 'mount /dev/sda1 /media'
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