Zroot /dev/disk/by-id/ id-to-partition-partx This will enable compression and native encryption by default on all datasets: Zroot /dev/disk/by-id/ id-to-partition-partx Compression and native encryption Refer to OpenZFS issue #967 for a related discussion, and OpenZFS issue #2497 for a consequence of a higher ashift value. If in doubt, for a modern drive, err on the side of ashift=12, or research your particular device for the appropriate value. Selecting ashift=12 on a 512 byte sector size may incur in a capacity penalty, but no performance penalty. Selecting ashift=9 on a 4096 byte sector size (even if it reports 512) will incur a performance penalty. Warning: Keep in mind that most modern devices use a 4096 byte physical sector size, even though some report 512. ZFS will manage the first, and your bootloader the second. Do not do anything to the Solaris partition nor to the BIOS boot partition. ![]() If you have opted for a boot partition as well as any other non-ZFS system partitions then format them. If you are creating an EFI partition then that should have the boot flag set instead of the root partition. # parted -script /dev/sd x mklabel gpt mkpart non-fs 0% 2 mkpart primary 2 100% set 1 bios_grub on set 2 boot on You can achieve the above in a single command like so: Here are some example commands to partition a drive for the second scenario above ie using BIOS/legacy boot mode with a GPT partition table and a (slighty more than) 1MB BIOS boot partition for GRUB: Warning: Several GRUB bugs ( bug #42861, zfsonlinux/grub/issues/5) complicate installing it on ZFS partitions, see #Install and configure the bootloader for a workaround Example parted commands If you require a swap partition, see ZFS#Swap volume for creating a swap ZVOL. Using GRUB on a BIOS (or UEFI machine in legacy boot mode) machine but using a GPT partition table:Īnother example, this time using a UEFI-specific bootloader (such as rEFInd) with an GPT partition table: ![]() Here is an example of a basic partition scheme that could be employed for your ZFS root install on a BIOS/MBR installation using GRUB: Consult Arch boot process#Boot loader for more information. On a BIOS machine (or a UEFI machine booting in legacy mode) EFI partition is not required. GRUB on BIOS/GPT configurations require a small (1~2MiB) BIOS boot partition to embed its image of boot code.ĭepending upon your machine's firmware or your choice of boot mode, booting may or may not require an EFI partition. The partition that will contain the ZFS filesystem should be of the type bf00, or "Solaris Root".ĭrives larger than 2TB require a GPT partition table. ![]() ZFS manages its own partitions, so only a basic partition table scheme is required. ZFS supports GPT and MBR partition tables. Review Partitioning for information on determining the partition table type to use for ZFS. To build a custom archiso, see ZFS article. To install Arch Linux on ZFS, you need to boot archiso system with ZFS module.Ī script to easily install and load the ZFS module on running archiso system. 9.1 System fails to boot due to: cannot import zroot: no such pool available.6.1.5 Booting your kernel and initrd from separate boot partition.6.1.4 Booting your kernel and initrd from ZFS.6.1.2 error: failed to get canonical path of.4.1.1 Compression and native encryption.1.2 Embedding ZFS module into custom archiso.
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