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--- linux:fs:btrfs:encrypted [2025/03/23 09:16] – created niziak
+++ linux:fs:btrfs:encrypted [2025/03/23 15:50] (current) – niziak
@@ Line 4: / Line 4: @@
 <code bash>
-cryptsetup luksFormat --cipher aes-xts-plain64 --key-size 512 --hash sha512 --verify-passphrase --use-random /dev/nvme0n1p4
+cryptsetup luksFormat --cipher aes-xts-plain64 --key-size 512 --hash sha512 --sector-size 4096 --verify-passphrase --use-random /dev/nvme0n1p4
+blkid /dev/nvme0n1p4
 </code>
+Consider [[https://wiki.niziak.spox.org/linux:backup:luks|luks header backup]]
 <file ini /etc/crypttab>
-home2 UUID=aad5d877-2bc5-460b-8441-32b89c0462e6 none luks,noearly,discard
+home2 UUID=aad5d877-2bc5-460b-8441-32b89c0462e6 none luks,noearly,noauto,loud,discard
 </file>
 <code bash>
-systemctl daemon-reload
+cryptdisk_start home2
-systemctl restart cryptsetup.target
 dmsetup table
+mkfs.btrfs /dev/mapper/home2
+mkdir /home2
+mount /dev/mapper/home2 /home2
+cd home2
+btrfs sub create @home
+cd ..
+umount /home2
+cryptdisks_stop home2
+</code>
+<file ini /etc/fstab>
+/dev/mapper/home2 /home2               btrfs   noauto,noatime,nodiratime,relatime,subvol=@home 0       0
+</file>
+<code bash>
+systemctl daemon-reload
+cryptdisks_start home2
+mount /home2
+...
+umount /home2
+cryptdisks_stop home2
+update-initramfs -u -k all
 </code>