Table of Contents

1. Challenge

   Create Linux LVM Type Partitions on /dev/xvdb and /dev/xvdc to Use All Space

   Start an interactive root shell with sudo. Use fdisk to create a new default partition of type 8e on /dev/xvdb and /dev/xvdc. Create the first:

   sudo -i
   fdisk /dev/xvdb
   

   Use the n command and choose all the defaults to create a new partition:

   Command (m for help): n
   Partition Type: p
   Partition number (1-4, default 1): Press Enter to accept the default
   First sector: Press Enter to accept the default
   Last sector: Press Enter to accept the default
   

   Use the t command to change to 8e (Linux LVM):

   Command (m for help): t
   Selected partition 1
   Hex code (type L to list all codes): 8e
   Changed type of partition 'Linux' to 'Linux LVM'
   

   Use the w command to write the changes to the partition table and exit:

   Command (m for help): w
   

   Now create the second:

   fdisk /dev/xvdc
   

   Use the n command and choose all the defaults to create a new partition:

   Command (m for help): n
   Partition Type: p
   Partition number (1-4, default 1): Press Enter to accept the default
   First sector: Press Enter to accept the default
   Last sector: Press Enter to accept the default
   

   Use the t command to change to 8e (Linux LVM):

   Command (m for help): t
   Selected partition 1
   Hex code (type L to list all codes): 8e
   Changed type of partition 'Linux' to 'Linux LVM'
   

   Use the w command to write the changes to the partition table and exit.

   The result is that the /dev/xvdb1 and /dev/xvdc1 partitions of type 8e have been created.

2. Challenge

   Create Physical Volumes with the LVM Partitions /dev/xvdb1 and /dev/xvdc1, and Create the Volume Group volgroup Using /dev/xvdb1

   Initialize the /dev/xvdb1 and /dev/xvdc1 LVM partitions as Physical Volumes with pvcreate. Inspect the Physical Volumes with pvs and pvdisplay:

   pvcreate /dev/xvdb1 /dev/xvdc1
   pvs
   pvdisplay
   

   Use vgcreate to create the volgroup Volume Group using the /dev/xvdb1 Physical Volume. Inspect volgroup with vgs and vgdisplay:

   vgcreate volgroup /dev/xvdb1
   vgs
   vgdisplay
   

3. Challenge

   Create the Logical Volume datavol Using 3GB of Space and tempvol Using 1GB of Space

   Use the lvcreate command to create two Logical Volumes, a 3 GB named datavol and a 1 GB named tempvol. Inspect them using lvs and lvdisplay commands:

   lvcreate -n datavol -L3G volgroup
   lvcreate -n tempvol -L1G volgroup
   lvs
   lvdisplay
   

4. Challenge

   Remove /dev/volgroup/tempvol, Extend volgroup with /dev/xvdc1, and Then Resize /dev/volgroup/datavol to Use All Space in the Volume Group

   Use lvremove to get rid of the tempvol, then run vgextend to expand the volume group. Create an ext4 filesystem on /dev/volgroup/datavol and mount it on /mnt/data. Use lvresize to extend the datavol Logical Volume and filesystem to the maximum size possible. Check everything afterward using the df and vgs commands:

   lvremove /dev/volgroup/tempvol
   Type 'y' and Enter to confirm 
   vgs
   vgextend volgroup /dev/xvdc1
   vgs
   vgdisplay
   mkfs -t ext4 /dev/volgroup/datavol
   mkdir /mnt/data
   mount  /dev/volgroup/datavol /mnt/data
   df -h /mnt/data
   lvresize -r -L 9.99G /dev/volgroup/datavol
   df -h
   

5. Challenge

   Configure the /dev/volgroup/datavol Logical Volume to Mount on /mnt/data Persistently

   Unmount the /mnt/data directory with the umount command:

   umount /mnt/data
   

   Add the following line to /etc/fstab:

   /dev/volgroup/datavol /mnt/data ext4 defaults 0 1
   

   Use an editor like vim to add the line to the file:

   vim /etc/fstab
   

   Mount the device with the mount command. Use df to verify it mounted:

   mount -a
   df -h /mnt/data