Use /dev/disk/by-id/coreos-boot-disk when creating /var partition

modules/installation-disk-partitioning-upi-templates.adoc

@@ -83,7 +83,7 @@ $ ls $HOME/clusterconfig/openshift/
 ...
 ----
 
-. Create a Butane config that configures the additional partition. For example, name the file `$HOME/clusterconfig/98-var-partition.bu`, change the disk device name to the name of the storage device on the `worker` systems, and set the storage size as appropriate. This example places the `/var` directory on a separate partition:
+. Create a Butane config that configures the additional partition. For example, name the file `$HOME/clusterconfig/98-var-partition.bu`, and set the storage size as appropriate. This example places the `/var` directory on a separate partition on the boot disk:
 +
 [source,yaml,subs="attributes+"]
 ----
@@ -95,24 +95,27 @@ metadata:
   name: 98-var-partition
 storage:
   disks:
-  - device: /dev/disk/by-id/<device_name> <1>
+  - device: /dev/disk/by-id/coreos-boot-disk
     partitions:
     - label: var
-      start_mib: <partition_start_offset> <2>
-      size_mib: <partition_size> <3> 
+      start_mib: <partition_start_offset>
+      size_mib: <partition_size>
       number: 5
   filesystems:
     - device: /dev/disk/by-partlabel/var
       path: /var
       format: xfs
-      mount_options: [defaults, prjquota] <4>
+      mount_options: [defaults, prjquota]
       with_mount_unit: true
 ----
 +
-<1> The storage device name of the disk that you want to partition.
-<2> When adding a data partition to the boot disk, a minimum value of 25000 MiB (Mebibytes) is recommended. The root file system is automatically resized to fill all available space up to the specified offset. If no value is specified, or if the specified value is smaller than the recommended minimum, the resulting root file system will be too small, and future reinstalls of {op-system} might overwrite the beginning of the data partition.
-<3> The size of the data partition in mebibytes.
-<4> The `prjquota` mount option must be enabled for filesystems used for container storage.
+where:
++
+--
+`start_mib`:: Specifies the starting offset of a disk partition in mebibytes (MiB). When adding a data partition to the boot disk, a minimum value of 25000 MiB is recommended. The root file system is automatically resized to fill all available space up to the specified offset. If no value is specified, or if the specified value is smaller than the recommended minimum, the resulting root file system will be too small, and future reinstalls of {op-system} might overwrite the beginning of the data partition.
+`size_mib`:: Specifies the size of the data partition in mebibytes (MiB).
+`mount_options`:: Specifies the configurable mount options available. The `prjquota` mount option must be enabled for filesystems used for container storage.
+--
 +
 [NOTE]
 ====

modules/installation-disk-partitioning.adoc

@@ -81,7 +81,7 @@ $ ls $HOME/clusterconfig/openshift/
 ...
 ----
 
-. Create a Butane config that configures the additional partition. For example, name the file `$HOME/clusterconfig/98-var-partition.bu`, change the disk device name to the name of the storage device on the `worker` systems, and set the storage size as appropriate. This example places the `/var` directory on a separate partition:
+. Create a Butane config that configures the additional partition. For example, name the file `$HOME/clusterconfig/98-var-partition.bu`, and set the storage size as appropriate. This example places the `/var` directory on a separate partition on the boot disk:
 +
 [source,yaml,subs="attributes+"]
 ----
@@ -93,24 +93,27 @@ metadata:
   name: 98-var-partition
 storage:
   disks:
-  - device: /dev/disk/by-id/<device_name> <1>
+  - device: /dev/disk/by-id/coreos-boot-disk
     partitions:
     - label: var
-      start_mib: <partition_start_offset> <2>
-      size_mib: <partition_size> <3> 
+      start_mib: <partition_start_offset>
+      size_mib: <partition_size>
       number: 5
   filesystems:
     - device: /dev/disk/by-partlabel/var
       path: /var
       format: xfs
-      mount_options: [defaults, prjquota] <4>
+      mount_options: [defaults, prjquota]
       with_mount_unit: true
 ----
 +
-<1> The storage device name of the disk that you want to partition.
-<2> When adding a data partition to the boot disk, a minimum value of 25000 mebibytes is recommended. The root file system is automatically resized to fill all available space up to the specified offset. If no value is specified, or if the specified value is smaller than the recommended minimum, the resulting root file system will be too small, and future reinstalls of {op-system} might overwrite the beginning of the data partition.
-<3> The size of the data partition in mebibytes.
-<4> The `prjquota` mount option must be enabled for filesystems used for container storage.
+where:
++
+--
+`start_mib`:: Specifies the starting offset of a disk partition in mebibytes (MiB). When adding a data partition to the boot disk, a minimum value of 25000 MiB is recommended. The root file system is automatically resized to fill all available space up to the specified offset. If no value is specified, or if the specified value is smaller than the recommended minimum, the resulting root file system will be too small, and future reinstalls of {op-system} might overwrite the beginning of the data partition.
+`size_mib`:: Specifies the size of the data partition in mebibytes (MiB).
+`mount_options`:: Specifies the configurable mount options available. The `prjquota` mount option must be enabled for filesystems used for container storage.
+--
 +
 [NOTE]
 ====

modules/installation-user-infra-machines-advanced-disk.adoc

@@ -92,7 +92,7 @@ metadata:
   name: 98-var-partition
 storage:
   disks:
-  - device: /dev/disk/by-id/<device_name>
+  - device: /dev/disk/by-id/coreos-boot-disk
     partitions:
     - label: var
       start_mib: <partition_start_offset>
@@ -108,7 +108,6 @@ storage:
 +
 where:
 +
-`<device_name>`:: Specifies the storage device name of the disk that you want to partition.
 `<partition_start_offset>`:: Specifies the minimum offset value for the boot disk. For best performance, specify a minimum offset value of 25000 mebibytes. The root file system is automatically resized to fill all available space up to the specified offset. If no offset value is specified, or if the specified value is smaller than the recommended minimum, the resulting root file system will be too small, and future reinstalls of {op-system} might overwrite the beginning of the data partition.
 `<partition_size>`:: Specifies the size of the data partition in mebibytes.
 `mount_options`:: The `prjquota` mount option must be enabled for filesystems used for container storage.
@@ -160,4 +159,4 @@ ifeval::["{context}" == "installing-with-agent-based-installer"]
 endif::[]
 ifeval::["{context}" == "installing-restricted-networks-bare-metal"]
 :!restricted:
-endif::[]
+endif::[]

modules/installation-user-infra-machines-advanced.adoc

@@ -24,4 +24,4 @@ The advanced configuration topics for manual {op-system-first} installations det
 
 ifeval::["{context}" == "installing-restricted-networks-bare-metal"]
 :!restricted:
-endif::[]
+endif::[]