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Add note on backing up LUKS headers
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@ -49,6 +49,14 @@ cryptsetup open /dev/disk/by-label/NIXCRYPTFS crypfs
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mkfs.btrfs -L NIXFS /dev/mapper/cryptfs
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```
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> [!NOTE]
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> For the LUKS encrypted partitions, I'd heavily recommend that you back up the LUKS headers in case of a partial drive failure, so that you're still
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> able to recover your remaining data. To do this, you can use the following command:
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>
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> ```bash
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> cryptsetup luksHeaderBackup /dev/device --header-backup-file /mnt/backup/file.img
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> ```
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### BTRFS Subvolumes
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Now we will split our btrfs partition into the following subvolumes:
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