vgcreate, mke2fs: add sudo and use safe placeholders (#19513)

Co-authored-by: Managor <[email protected]>

Author: ivanbaluta

pages/linux/mke2fs.md

@@ -3,14 +3,14 @@
 > Create a Linux filesystem inside a partition.
 > More information: <https://manned.org/mke2fs>.
 
-- Create an ext2 filesystem in partition 1 of device b (`sdb1`):
+- Create an ext2 filesystem on a partition:
 
-`mke2fs -t ext2 {{/dev/sdb1}}`
+`sudo mke2fs -t ext2 {{/dev/sdXY}}`
 
-- Create an ext3 filesystem in partition 1 of device b (`sdb1`):
+- Create an ext3 filesystem on a partition:
 
-`mke2fs -t ext3 {{/dev/sdb1}}`
+`sudo mke2fs -t ext3 {{/dev/sdXY}}`
 
-- Create an ext4 filesystem in partition 1 of device b (`sdb1`):
+- Create an ext4 filesystem on a partition:
 
-`mke2fs -t ext4 {{/dev/sdb1}}`
+`sudo mke2fs -t ext4 {{/dev/sdXY}}`

pages/linux/vgcreate.md

@@ -4,10 +4,10 @@
 > See also: `lvm`.
 > More information: <https://manned.org/vgcreate>.
 
-- Create a new volume group called vg1 using the `/dev/sda1` device:
+- Create a new volume group using the specified device:
 
-`vgcreate {{vg1}} {{/dev/sda1}}`
+`sudo vgcreate {{volume_group}} {{/dev/sdXY}}`
 
-- Create a new volume group called vg1 using multiple devices:
+- Create a new volume group using multiple devices:
 
-`vgcreate {{vg1}} {{/dev/sda1}} {{/dev/sdb1}} {{/dev/sdc1}}`
+`sudo vgcreate {{volume_group}} {{/dev/sdXY}} {{/dev/sdXZ}}`