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diff content/Linux/software-raid-setup.md @ 98:1d9382b0329b

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Specify the syntax on markdown blocks to avoid broken output that has class=err
author Dirk Olmes <dirk@xanthippe.ping.de>
date Thu, 19 Dec 2019 10:04:33 +0100
parents abc2401e9958
children
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--- a/content/Linux/software-raid-setup.md	Thu Dec 19 09:31:57 2019 +0100
+++ b/content/Linux/software-raid-setup.md	Thu Dec 19 10:04:33 2019 +0100
@@ -9,6 +9,7 @@
 
 The first step of the setup is partitioning the drives. The [handbook](https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/Disks) suggests adding a small partition at the beginning of the drive to enable booting from a gpt partitioned drive. The `/boot` partition will be formatted using [ext4](https://en.wikipedia.org/wiki/Ext4) because the filesystem will remain bootable even if one of the drives is missing. The rest of the disk will be formatted using [xfs](https://en.wikipedia.org/wiki/XFS). To recap the layout:
 
+    :::shell
     Number  Start    End      Size     File system  Name    Flags
      1      1.00MiB  3.00MiB  2.00MiB               grub    bios_grub
      2      3.00MiB  95.0MiB  92.0MiB               boot
@@ -18,14 +19,17 @@
 
 Now let's create a RAID 1 for the boot partition:
 
+    :::shell
     mdadm --create /dev/md0 --level=1 --raid-devices=2 /dev/sdb2 /dev/sdc2
 
 and for the rootfs:
 
+    :::shell
     mdadm --create /dev/md1 --level=1 --raid-devices=2 /dev/sdb3 /dev/sdc3
 
 To maintain the RAID device numbering even after reboot, the RAID config has to be saved. This will be done by
-
+    
+    :::shell
     mdadm --detail --scan >> /etc/mdadm.conf
 
 Then create an ext4 filesystem on `/dev/md0` and an xfs filesystem on `/dev/md1`. Nothing noteworthy here.
@@ -34,6 +38,7 @@
 
 After chrooting into the new system some changes have to be made to the [genkernel](https://wiki.gentoo.org/wiki/Genkernel) config in order to produce a RAID enabled initramfs. In `/etc/genkernel.conf` set
 
+    :::shell
     MDADM="yes"
     MDADM_CONFIG="/etc/mdadm.conf"
 
@@ -41,6 +46,7 @@
 
 While it's compiling, edit `/etc/default/grub` (I'm of course using [grub2](https://www.gnu.org/software/grub/manual/grub.html) for booting)  and add
 
+    :::shell
     GRUB_CMDLINE_LINUX="domdadm"
 
 Setup grub on both devices individually using `grub-install /dev/sdb` and `grub-install /dev/sdc`.