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Rewrite datactl command (#1046)

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* Rewrite datactl command

Prepare the target partition as part of the datactl command. Rely on
partlabel for the target disk since we are always using GPT on the
target disk. Use systemd and partlabel mechanism to wait and find
the target data disk. Keep using the file system label to identify
the source disk.

Also use e2image instead of raw dd to move data. This should
speed up the processes significantly.

* Fix corner case when reusing same disk again
This commit is contained in:
Stefan Agner
2020-12-03 20:05:02 +01:00
committed by GitHub
parent 1537d02408
commit 46bb12844f
18 changed files with 76 additions and 89 deletions
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9
Documentation/partition.md
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@@ -51,10 +51,13 @@ Log in as `root` to get to the Home Assistant CLI and then enter `login` to cont
Confirm your USB SSD/HD is connected and recognized using `fdisk -l`.
Make sure the drive has no partition named `hassos-data` (or no partition at all). With the drive, use the below command (again, replacing XXX with your drive)
With the drive connected, use the following command (replacing sdx with your drive, without a partition number):
```sh
$ datactl move /dev/xxx
$ datactl move /dev/sdx
```
Hit any key to continue, and then the move will happen after the next reboot. Once complete, the external drive will be owned and used by the system.
Enter "yes" to confirm the operation. This will prepare the disk, however, the
actual move will be running on next reboot. Once complete, the external drive
will contain the data and will need to be plugged in to successfully boot Home
Assistant OS.