From d9e33fc1de40bf84fedea2235eb5efe43fbeb4c3 Mon Sep 17 00:00:00 2001 From: Alexander Bocken Date: Tue, 17 Oct 2023 15:09:34 +0200 Subject: [PATCH] remove references to sda3 --- docs/luks2.md | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/docs/luks2.md b/docs/luks2.md index 1dbf9d4..a1f8102 100644 --- a/docs/luks2.md +++ b/docs/luks2.md @@ -15,8 +15,8 @@ Note: for BIOS systems a dummy 1M parition would be also required. For UEFI this ## Create LVM ```sh -cryptsetup luksFormat /dev/sda3 -cryptsetup open /dev/sda3 cryptlvm +cryptsetup luksFormat /dev/sda2 +cryptsetup open /dev/sda2 cryptlvm pvcreate /dev/mapper/cryptlvm vgcreate vg /dev/mapper/crypylvm ``` @@ -102,7 +102,7 @@ and add to `GRUB_CMDLINE_LINUX`: (can have multiple, space-separated arguments s ```/etc/default/grub GRUB_CMDLINE_LINUX="cryptdevice=UUID=device-UUID:cryptlvm" ``` -and replace "device-UUID" with the uuid we got for `/dev/sda3` from the previous `ls` command. Of course remove all the trailing `ls` output. +and replace "device-UUID" with the uuid we got for `/dev/sda2` from the previous `ls` command. Of course remove all the trailing `ls` output. ```sh grub-install --target=x86_64-efi --efi-directory=/efi --bootloader-id=GRUB --recheck @@ -120,7 +120,7 @@ set prefix=($root)/boot/grub insmod normal normal ``` -and replace device-UUID with the same device-UUID as before, (again, a `ls -l /dev/disk/by-uuid >> /boot/grub/grub-pre.cfg` can help here to get the UUID for `/dev/sda3`) +and replace device-UUID with the same device-UUID as before, (again, a `ls -l /dev/disk/by-uuid >> /boot/grub/grub-pre.cfg` can help here to get the UUID for `/dev/sda2`) Now we can overwrite our previously generated grubx64.efi with a luks2 compatible one: ```sh @@ -135,7 +135,7 @@ Create a keyfile: ```sh dd bs=512 count=4 if=/dev/random of=/crypto_keyfile.bin iflag=fullblock chmod 600 /crypto_keyfile.bin -cryptsetup luksAddKey /dev/sda3 /crypto_keyfile.bin +cryptsetup luksAddKey /dev/sda2 /crypto_keyfile.bin ``` Add this to the initramfs: ```/etc/mkinitcpio.conf @@ -167,8 +167,8 @@ cryptsetup luksFormat /dev/sdX cryptsetup open /dev/sdX YourDiskNameHere mkfs.ext4 /dev/mapper/YourDiskNameHere ``` -If you do not wish to have to enter the additional password on boot-up you will have to create a keyfile like we did for our /dev/sda3 above. -Of course this will lessen security as any additional hard-drives can also be decrypted if `/dev/sda3` has been decrypted or cracked. +If you do not wish to have to enter the additional password on boot-up you will have to create a keyfile like we did for our /dev/sda2 above. +Of course this will lessen security as any additional hard-drives can also be decrypted if `/dev/sda2` has been decrypted or cracked. Systemd can autodetec keys in `/etc/cryptsetup-keys.d` if they have the pattern `YourDiskNameHere.key`. Create this directory if not already present: ```sh