Windows host Ubuntu guess on VirtualBox

Add new virtual disks to Ubuntu

- Check your VM Ubuntu disks. Remember how many /dev/sd* disks it has

ls /dev/sd* | tee $HOME/my_sd1.log

- Turn off your VM Ubuntu
- Open Oracle VM Virtual Box Manager, select the Virtual Box for which you want to add the new disk and click on Settings.
- Click on Storage, select Controller (same with Ubuntu boot disk), click on Add hard disk icon.
- Choose Create New Disk.
- Hard disk type: VDI is my choice
- Storage on physical hard disk: Dynamically allocated
- File location and create: your choices. But you can create a 2 TB virtual disk only. You can repeat above steps to add more disks
- Now Start your VM Ubuntu
- Check your VM Ubuntu disks again. Check how many /dev/sd* disks it has

ls /dev/sd* | tee $HOME/my_sd2.log

- Example you have 2 new disks /dev/sdb and /dev/sdc

- Creating Linux Partitions

sudo fdisk /dev/sdb

# type c to switch off the DOS-compatible mode
# type u to change display units to sectors
# type n for new partition
# type p for primary partition
# type 1 for Partition number, your choice
# type w for to write all

- Do the same for /dev/sdc

- Check your VM Ubuntu disks again. You will have new /dev/sdb1 and /dev/sdc1

ls /dev/sd* | tee $HOME/my_sd3.log

- Format the Partitions

sudo mkfs.ext4 /dev/sdb1

sudo mkfs.ext4 /dev/sdc1

- Edit fstab by adding these lines

/dev/sdb1 /media/DATA1 ext4 rw 0 0
/dev/sdc1 /media/DATA2 ext4 rw 0 0

- Mount the new partitions

sudo mkdir /media/DATA1
sudo mkdir /media/DATA2

sudo mount -av

# Display information about file system disk space usage
df -h

Ref:
- https://www.vitalsofttech.com/add-disk-storage-to-oracle-virtualbox-with-linux/
- https://www.tutorialspoint.com/how-to-add-disk-storage-to-oracle-virtual-box-on-linux

Create a large partrition by combining 2 drives

Example you have created 2 virtual drives above. But you want a larger drive.

Caution - Data losss at /media/DATA1 and /media/DATA2

- Check your system status

# list Block Devices
sudo lsblk

# Display information about Physical Volumes
sudo pvs

# Display information about Volume Groups
sudo vgs

# Display information about Logical Volumes
sudo lvs

# Display information about file system disk space usage
df -h

- Unmount your drives

sudo umount /media/DATA1
sudo umount /media/DATA2

- Create two physical volumes

sudo pvcreate /dev/sdb1 /dev/sdc1

- Create one volume group name VG_DATA with the two physical volumes

sudo vgcreate VG_DATA /dev/sdb1 /dev/sdc1

- Create one logical volume name DATA

sudo lvcreate -l 100%FREE --name DATA VG_DATA

- Create the filesystem on your new logical volume DATA

sudo mkfs.ext4 /dev/VG_DATA/DATA

- Mount the volume

sudo mkdir /media/DATA
sudo mount /dev/VG_DATA/DATA /media/DATA

# or /etc/fstab
/dev/VG_DATA/DATA /media/DATA ext4 rw 0 0

- Check your system status again

# list Block Devices
sudo lsblk

# Display information about Physical Volumes
sudo pvs

# Display information about Volume Groups
sudo vgs

# Display information about Logical Volumes
sudo lvs

# Display information about file system disk space usage
df -h

Ref:
- https://serverfault.com/a/692738
- https://www.howtoforge.com/linux_lvm

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