Fixes for Fedora; support Rocky Linux Live ISO

Signed-off-by: Maurice Zhou <jasper@apvc.uk>

docs/Getting Started/Arch Linux/Root on ZFS/1-preparation.rst

@@ -104,6 +104,24 @@ Preparation
 
     INST_VDEV=
 
+   This will create a single vdev with the topology of your choice.
+   It is also possible to manually create a pool with multiple vdevs, such as::
+
+    zpool create --options \
+          poolName \
+          mirror sda sdb \
+          raidz2 sdc ... \
+          raidz3 sde ... \
+          spare  sdf ...
+
+   Notice the cost of parity when using RAID-Z. See
+   `here <https://www.delphix.com/blog/delphix-engineering/zfs-raidz-stripe-width-or-how-i-learned-stop-worrying-and-love-raidz>`__
+   and `here <https://docs.google.com/spreadsheets/d/1tf4qx1aMJp8Lo_R6gpT689wTjHv6CGVElrPqTA0w_ZY/>`__.
+
+   Refer to `zpoolconcepts <https://openzfs.github.io/openzfs-docs/man/7/zpoolconcepts.7.html>`__
+   and `zpool-create <https://openzfs.github.io/openzfs-docs/man/8/zpool-create.8.html>`__
+   man pages for details.
+
 #. Set partition size:
 
    Set ESP size. ESP contains Live ISO for recovery,

docs/Getting Started/Arch Linux/Root on ZFS/3-system-configuration.rst

@@ -92,6 +92,10 @@ System Configuration
 
     arch-chroot /mnt passwd
 
+#. Generate host id::
+
+    zgenhostid -f -o /mnt/etc/hostid
+
 #. Ignore kernel updates::
 
     sed -i 's/#IgnorePkg/IgnorePkg/' /mnt/etc/pacman.conf

docs/Getting Started/Arch Linux/Root on ZFS/5-bootloader.rst

@@ -50,9 +50,6 @@ Install GRUB
 
     mkinitcpio -P
 
-#. When in doubt, install both legacy boot
-   and EFI.
-
 #. Create GRUB boot directory, in ESP and boot pool::
 
     mkdir -p /boot/efi/EFI/arch
@@ -61,6 +58,9 @@ Install GRUB
    Boot environment-specific configuration (kernel, etc)
    is stored in ``/boot/grub/grub.cfg``, enabling rollback.
 
+#. When in doubt, install both legacy boot
+   and EFI.
+
 #. If using legacy booting, install GRUB to every disk::
 
     for i in ${DISK[@]}; do