mirror of
https://github.com/QubesOS/qubes-doc.git
synced 2025-02-17 21:34:17 -05:00
Merge branch 'custom-install-4.0'
This commit is contained in:
Andrew David Wong
commit
069c3e2a7c
@ -9,39 +9,179 @@ redirect_from:
|
||||
Custom Installation
|
||||
===================
|
||||
|
||||
In the present context, "custom installation" refers to things like manual
|
||||
partitioning, setting up LVM and RAID, and manual LUKS encryption configuration.
|
||||
In the present context, "custom installation" refers to things like manual partitioning, setting up LVM and RAID, and manual LUKS encryption configuration.
|
||||
|
||||
|
||||
Installer Defaults (R3.2)
|
||||
-------------------------
|
||||
## Qubes 4.0
|
||||
|
||||
### Installer Defaults
|
||||
|
||||
For reference, these are the typical defaults for a single disk with legacy boot:
|
||||
|
||||
~~~
|
||||
Mount Point: /boot
|
||||
Desired Capacity: 1024 MiB
|
||||
Device Type: Standard Partition
|
||||
File System: ext4
|
||||
Name: (none)
|
||||
|
||||
Mount Point: /
|
||||
Desired Capacity: (your choice)
|
||||
Device Type: LVM Thin Provisioning
|
||||
Volume Group: qubes_dom0
|
||||
File System: ext4
|
||||
Name: root
|
||||
|
||||
Mount Point: (none)
|
||||
Desired Capacity: 10 GiB
|
||||
Device Type: LVM
|
||||
Volume Group: qubes_dom0
|
||||
File System: swap
|
||||
Name: swap
|
||||
~~~
|
||||
|
||||
~~~
|
||||
SUMMARY OF CHANGES
|
||||
|
||||
Order Action Type Device Mount point
|
||||
|
||||
1 Destroy Format Unknown Disk (sda)
|
||||
2 Create Format partition table (MSDOS) Disk (sda)
|
||||
3 Create Device partition sda1 on Disk
|
||||
4 Create Format ext4 sda1 on Disk /boot
|
||||
5 Create Device partition sda2 on Disk
|
||||
6 Create Format LUKS sda2 on Disk
|
||||
7 Create Device luks/dm-crypt luks-sda2
|
||||
8 Create Format physical volume (LVM) luks-sda2
|
||||
9 Create Device lvmvg qubes_dom0
|
||||
10 Create Device lvmthinpool qubes_dom0-pool00
|
||||
11 Create Device lvmthinlv qubes_dom0-root
|
||||
12 Create Device lvmlv qubes_dom0-swap
|
||||
13 Create Format swap qubes_dom0-swap
|
||||
14 Create Format ext4 qubes_dom0-root /
|
||||
~~~
|
||||
|
||||
|
||||
### Typical Partition Schemes
|
||||
|
||||
If you want your partition/LVM scheme to look like the Qubes default but with a few tweaks, follow this example.
|
||||
With a single disk, the result should look something like this:
|
||||
|
||||
~~~
|
||||
NAME SIZE TYPE MOUNTPOINT
|
||||
sda disk
|
||||
├──sda1 1G part /boot
|
||||
└──sda2 part
|
||||
└──luks-<UUID> crypt
|
||||
├──qubes_dom0-pool00_tmeta lvm
|
||||
├──qubes_dom0-pool00_tdata lvm
|
||||
└──qubes_dom0-swap lvm [SWAP]
|
||||
~~~
|
||||
|
||||
|
||||
### Encryption Defaults
|
||||
|
||||
By default, `cryptsetup 1.7.5` will create a LUKS/dm-crypt volume as follows:
|
||||
|
||||
~~~
|
||||
Version: 1
|
||||
Cipher name: aes
|
||||
Cipher mode: xts-plain64
|
||||
Hash spec: sha256
|
||||
~~~
|
||||
|
||||
~~~
|
||||
$ cryptsetup --help
|
||||
[...]
|
||||
Default compiled-in device cipher parameters:
|
||||
loop-AES: aes, Key 256 bits
|
||||
plain: aes-cbc-essiv:sha256, Key: 256 bits, Password hashing: ripdemd160
|
||||
LUKS1: aes-xts-plain64, Key: 256 bits, LUKS header hashing: sha256, RNG: /dev/urandom
|
||||
~~~
|
||||
|
||||
This means that, by default, Qubes inherits these upstream defaults:
|
||||
|
||||
- AES-128 [[1]][cryptsetup-faq][[2]][dm-crypt][[3]][tomb-238]
|
||||
- SHA-256
|
||||
- `/dev/urandom`
|
||||
- probably an `iter-time` of one second
|
||||
|
||||
If, instead, you'd like to use AES-256, SHA-512, `/dev/random`, and a longer `iter-time`, for example, you can configure encryption manually by following the instructions below.
|
||||
|
||||
|
||||
### Example: Custom LUKS Configuration
|
||||
|
||||
Boot into the Qubes installer, then press `ctrl`+`alt`+`F2` to get a virtual console.
|
||||
|
||||
1. (Optional) Wipe the disk:
|
||||
|
||||
# dd if=/dev/zero of=/dev/sda bs=1M status=progress && sync
|
||||
|
||||
2. Create partitions:
|
||||
|
||||
# fdisk /dev/sda
|
||||
|
||||
Follow the steps to create two partitions:
|
||||
|
||||
- ~500MiB-1GiB for `/boot`
|
||||
- The rest for `/` (might want to leave some for overprovisioning if it's an SSD)
|
||||
|
||||
4. Create LUKS encrypted volume:
|
||||
|
||||
# cryptsetup -v --hash sha512 --cipher aes-xts-plain64 --key-size 512 --use-random --iter-time 10000 --verify-passphrase luksFormat /dev/sda2
|
||||
|
||||
5. Open encrypted volume:
|
||||
|
||||
# cryptsetup open /dev/sda2 luks
|
||||
|
||||
6. Create LVM volumes:
|
||||
|
||||
# pvcreate /dev/mapper/luks
|
||||
# vgcreate qubes_dom0 /dev/mapper/luks
|
||||
# lvcreate -n swap -L 10G qubes_dom0
|
||||
# lvcreate -T -l +100%FREE qubes_dom0/pool00
|
||||
# lvcreate -V1G -T qubes_dom0/pool00 -n root
|
||||
# lvextend -L <size_of_pool00> /dev/qubes_dom0/root
|
||||
|
||||
8. Proceed with the installer.
|
||||
At the disk selection screen, select:
|
||||
|
||||
[x] I will configure partitioning.
|
||||
[ ] Encrypt my data.
|
||||
|
||||
Decrypt your partition, then assign `/`, `/boot`, and `swap`.
|
||||
Proceed normally from there.
|
||||
|
||||
|
||||
## Qubes 3.2
|
||||
|
||||
### Installer Defaults
|
||||
|
||||
For reference, these are the defaults for a single disk:
|
||||
|
||||
~~~
|
||||
Mount Point: `/`
|
||||
Mount Point: /
|
||||
Desired Capacity: (your choice)
|
||||
Device Type: `LVM`
|
||||
Volume Group: `qubes_dom0`
|
||||
File System: `ext4`
|
||||
Name: `root`
|
||||
Device Type: LVM
|
||||
Volume Group: qubes_dom0
|
||||
File System: ext4
|
||||
Name: root
|
||||
|
||||
Mount Point: `/boot`
|
||||
Mount Point: /boot
|
||||
Desired Capacity: 500 MiB (recommended)
|
||||
Device Type: Standard Partition
|
||||
File System: `ext4`
|
||||
File System: ext4
|
||||
|
||||
Mount Point: (none)
|
||||
Desired Capacity: 9.44 GiB (recommended)
|
||||
Device Type: LVM
|
||||
Volume Group: qubes_dom0
|
||||
File System: `swap`
|
||||
Name: `swap`
|
||||
File System: swap
|
||||
Name: swap
|
||||
~~~
|
||||
|
||||
|
||||
Typical Partition Schemes
|
||||
-------------------------
|
||||
### Typical Partition Schemes
|
||||
|
||||
If you want your partition/LVM scheme to look like the Qubes default but
|
||||
with a few tweaks, follow these examples. With a single disk, the result
|
||||
@ -80,8 +220,7 @@ If you're using `mdadm` software RAID, it should look something like this:
|
||||
~~~
|
||||
|
||||
|
||||
Example: LVM on LUKS on RAID (R3.2)
|
||||
-----------------------------------
|
||||
### Example: LVM on LUKS on RAID0
|
||||
|
||||
Boot into the Qubes installer, then press `ctrl`+`alt`+`F2` to get a virtual
|
||||
console.
|
||||
@ -128,8 +267,9 @@ console.
|
||||
Continue normally from here.
|
||||
|
||||
|
||||
Manual Encryption Configuration (R3.1)
|
||||
--------------------------------------
|
||||
## Qubes 3.1
|
||||
|
||||
### Manual Encryption Configuration
|
||||
|
||||
Qubes OS uses full disk encryption (FDE) by default. If you are an advanced
|
||||
user who wishes to customize your encryption parameters during installation,
|
||||
@ -191,3 +331,7 @@ configure the encryption options while installing Qubes as follows:
|
||||
|
||||
# cryptsetup luksDump /dev/sda2
|
||||
|
||||
[cryptsetup-faq]: https://gitlab.com/cryptsetup/cryptsetup/wikis/FrequentlyAskedQuestions
|
||||
[dm-crypt]: https://wiki.archlinux.org/index.php/dm-crypt/Device_encryption
|
||||
[tomb-238]: https://github.com/dyne/Tomb/issues/238
|
||||
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user