45 lines
1.3 KiB
Bash
45 lines
1.3 KiB
Bash
# Simple LVM-on-LUKS2 layout -- more or less emulates what one gets out
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# of d-i with the "encrypted LVM" partioning method.
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# create two new partitions for /boot and LUKS respectively (the first
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# one is always used for BIOS/EFI and never exceeds sector 64*1024*2)
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sfdisk --append /dev/vda <<-EOF
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unit: sectors
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start=$((64*1024*2)), size=$((128*1024*2)), type=${GUID_TYPE_Linux_FS}
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start=$(((64+128)*1024*2)), type=${GUID_TYPE_LUKS}
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EOF
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udevadm settle
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# initialize a new LUKS partition and open it
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echo -n "topsecret" >/rootfs.key
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cryptsetup luksFormat --batch-mode \
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--key-file=/rootfs.key \
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--type=luks2 \
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--pbkdf=argon2id \
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--pbkdf-force-iterations=4 \
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--pbkdf-memory=32 \
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-- /dev/vda3
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cryptsetup luksOpen --key-file=/rootfs.key --allow-discards \
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-- /dev/vda3 "vda3_crypt"
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udevadm settle
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lvm pvcreate /dev/mapper/vda3_crypt
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lvm vgcreate "cryptvg" /dev/mapper/vda3_crypt
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lvm lvcreate -Zn --size 1024m --name "swap" "cryptvg"
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lvm lvcreate -Zn -l100%FREE --name "root" "cryptvg"
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lvm vgchange -ay "cryptvg"
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lvm vgmknodes
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udevadm settle
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mke2fs -Ft ext4 /dev/cryptvg/root
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mount -t ext4 /dev/cryptvg/root "$ROOT"
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mkdir "$ROOT/boot"
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mke2fs -Ft ext2 -m0 /dev/vda2
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mount -t ext2 /dev/vda2 "$ROOT/boot"
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mkswap /dev/cryptvg/swap
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swapon /dev/cryptvg/swap
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# vim: set filetype=sh :
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