Parted

parted /dev/sdb [unit s|MB|B] print : Print drive partition info

parted /dev/sdb mklabel gpt/msdos : Create partition table

parted /dev/sdb

mklabel gpt : create new GPT table? mkpart : Create a new partiion mkpart primary ext4 0% 100%

NOTE: In MBR, prompt asks you primary or extended? But in GPT, that is not the case.

With blkid command, you can find the UUID of disks. You can also use lsblk --fs with systemctl daemon-reload you can soft reload all daemons. After changing /etc/fstab, you should use this command.

• Adding disk to virtual machine

  To add disk to your virtual machine, these are the steps.

  Identify:

  fdisk -l will show how many disks are connected

  fdisk -l 2> /dev/null | egrep ‘^Disk’ | wc -l will also show disk number

  fdisk -l 2> /dev/null | egrep ‘^Disk’ | grep -v mapper | grep -v identifier will show the best resultsfile:

  Add disk: In virtual machine settings add disk with your skill.

  Mounting: List different connectors (SATA,SCSI,IDE etc.) with commands

  ls /sys/class/fc_host

  ls /sys/class/scsi_host

  Then, in folder that which ls command returned something type these for all hosts

  echo "- - -" > /sys/class/scsi_host/host0/scan

  echo "- - -" > /sys/class/scsi_host/host1/scan

  etc…

  “- - -” are wildcards for channel, SCSI target ID and LUN. The dashes act as wildcards meaning “rescan everything”

  After, you can check again if the disk is added with

  fdisk -l 2> /dev/null | egrep ‘^Disk’ | grep -v mapper | grep -v identifier