Red Hat Certified System Administrator (RHCSA) EX200 Study Guide

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and tail
Access a virtual machine’s console.
# v irt-v iewer REDHAT VM
Start and stop virtual machines.
# v irsh start REDHAT VM
# v irsh shutdown REDHAT VM (Attempts a “graceful sy stem shutdown)
# v irsh destroy REDHAT VM (Equivalent to turning off the sy stem with the power button unsaved data may be lost
with this option.
Start, stop, and check the status of network services.
# serv ice start //example: service httpd start
# serv ice stop
# serv ice restart
# serv ice status
# checkconfig on //turns on service at boot
# checkconfig off //turns off services at boot
Configure local storage
List, create, delete, and set partition type for primary, extended, and logical partitions.
List partitions: # fdisk -l
Delete: partitions
1) Open the drive with:
# fdisk /dev /sda
2) Press “c” to turn off DOS-compatible mode and the “u” to display units in sectors.
3) Ty pe n for a new partition. Each disk can have 4 primary partitions which are number 1-4. Partition 5 is the extended
partition and partitions 6 – X are logical partitions.
4) Press “w” to write the changes to the disk or “q” to exit without saving changes.
Create and remove physical volumes, assign physical volumes to volume groups, and create and
delete logical volumes.
Create phy sical volume: # pv create -v /dev /sda1 /dev /sda2
Create volume group: # v gcreate -v -s 32 VG01 /dev /sda1 /dev /sda2
Create logical volume: # lv create -v 10g -n LV01 VG01