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Debian/Ubuntu: Split some mirror instructions

Richard Laager 2019-03-17 20:38:48 -05:00
parent 209875a5b2
commit 3f977bc073
2 changed files with 6 additions and 4 deletions
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5
Debian-Stretch-Root-on-ZFS.md

@ -55,7 +55,7 @@ If you have a second system, using SSH to access the target system can be conven
Clear the partition table:
# sgdisk --zap-all /dev/disk/by-id/scsi-SATA_disk1
2.2 Partition your disk:
2.2 Partition your disk(s):
Run this if you need legacy (BIOS) booting:
# sgdisk -a1 -n2:34:2047 -t2:EF02 /dev/disk/by-id/scsi-SATA_disk1
@ -71,6 +71,7 @@ Always use the long `/dev/disk/by-id/*` aliases with ZFS. Using the `/dev/sd*`
**Hints:**
* `ls -la /dev/disk/by-id` will list the aliases.
* Are you doing this in a virtual machine? If your virtual disk is missing from `/dev/disk/by-id`, use `/dev/vda` if you are using KVM with virtio; otherwise, read the [troubleshooting](#troubleshooting) section.
* If you are doing a mirror or raidz topology, repeat the partitioning commands for all the disks which will be part of the pool.
2.3 Create the root pool:
@ -90,7 +91,7 @@ Always use the long `/dev/disk/by-id/*` aliases with ZFS. Using the `/dev/sd*`
* Make sure to include the `-part1` portion of the drive path. If you forget that, you are specifying the whole disk, which ZFS will then re-partition, and you will lose the bootloader partition(s).
**Hints:**
* The root pool does not have to be a single disk; it can have a mirror or raidz topology. In that case, repeat the partitioning commands for all the disks which will be part of the pool. Then, create the pool using `zpool create ... rpool mirror /dev/disk/by-id/scsi-SATA_disk1-part1 /dev/disk/by-id/scsi-SATA_disk2-part1` (or replace `mirror` with `raidz`, `raidz2`, or `raidz3` and list the partitions from additional disks). Later, install GRUB to all the disks. This is trivial for MBR booting; the UEFI equivalent is currently left as an exercise for the reader.
* If you are doing a mirror or raidz topology, create the pool using `zpool create ... rpool mirror /dev/disk/by-id/scsi-SATA_disk1-part1 /dev/disk/by-id/scsi-SATA_disk2-part1` (or replace `mirror` with `raidz`, `raidz2`, or `raidz3` and list the partitions from additional disks).
* The pool name is arbitrary. On systems that can automatically install to ZFS, the root pool is named `rpool` by default. If you work with multiple systems, it might be wise to use `hostname`, `hostname0`, or `hostname-1` instead.
## Step 3: System Installation

5
Ubuntu-18.04-Root-on-ZFS.md

@ -59,7 +59,7 @@ If you have a second system, using SSH to access the target system can be conven
Clear the partition table:
# sgdisk --zap-all /dev/disk/by-id/scsi-SATA_disk1
2.2 Partition your disk:
2.2 Partition your disk(s):
Run this if you need legacy (BIOS) booting:
# sgdisk -a1 -n2:34:2047 -t2:EF02 /dev/disk/by-id/scsi-SATA_disk1
@ -83,6 +83,7 @@ Always use the long `/dev/disk/by-id/*` aliases with ZFS. Using the `/dev/sd*`
**Hints:**
* `ls -la /dev/disk/by-id` will list the aliases.
* Are you doing this in a virtual machine? If your virtual disk is missing from `/dev/disk/by-id`, use `/dev/vda` if you are using KVM with virtio; otherwise, read the [troubleshooting](#troubleshooting) section.
* If you are doing a mirror or raidz topology, repeat the partitioning commands for all the disks which will be part of the pool.
2.3 Create the root pool:
@ -117,7 +118,7 @@ Choose one of the following options:
* Your passphrase will likely be the weakest link. Choose wisely. See [section 5 of the cryptsetup FAQ](https://gitlab.com/cryptsetup/cryptsetup/wikis/FrequentlyAskedQuestions#5-security-aspects) for guidance.
**Hints:**
* The root pool does not have to be a single disk; it can have a mirror or raidz topology. In that case, repeat the partitioning commands for all the disks which will be part of the pool. Then, create the pool using `zpool create ... rpool mirror /dev/disk/by-id/scsi-SATA_disk1-part1 /dev/disk/by-id/scsi-SATA_disk2-part1` (or replace `mirror` with `raidz`, `raidz2`, or `raidz3` and list the partitions from additional disks).
* If you are doing a mirror or raidz topology, create the pool using `zpool create ... rpool mirror /dev/disk/by-id/scsi-SATA_disk1-part1 /dev/disk/by-id/scsi-SATA_disk2-part1` (or replace `mirror` with `raidz`, `raidz2`, or `raidz3` and list the partitions from additional disks).
* The pool name is arbitrary. On systems that can automatically install to ZFS, the root pool is named `rpool` by default. If you work with multiple systems, it might be wise to use `hostname`, `hostname0`, or `hostname-1` instead.
## Step 3: System Installation