SIMULATION -
There is a local logical volumes in your system, named with common and belong to VGSRV volume group, mount to the /common directory. The definition of size is 128 MB.
Requirement:
Extend the logical volume to 190 MB without any loss of data. The size is allowed between 160-160 MB after extending.
To extend the logical volume named 'common' in the VGSRV volume group, mounted to the /common directory, from 128 MB to 190 MB without any loss of data, follow these steps. First, use the command 'lvextend' to increase the size of the logical volume. Then, use 'resize2fs' to resize the filesystem to utilize the newly allocated space. The correct commands are: 'lvextend -L 190M /dev/mapper/vgsrv-common' and then 'resize2fs /dev/mapper/vgsrv-common'. The '-L 190M' option ensures the logical volume's total size becomes 190 MB. After extending the logical volume, 'resize2fs' adjusts the filesystem to fit the new size.
Also this option is valid: # lvextend -r -L 190M /dev/VGSRV/common
# lvextend -rv -L 190M /dev/VGSRV/common
###* mount the existing volume ###* if volume is ext4! mkdir /common nano /etc/fstab: /dev/mapper/vgsrv-common /common ext4 defaults 1 2 mount -a ###* Expand 128M -> 190M lvextend -L 190M /dev/mapper/vgsrv-common or lvextend -L +68M /dev/mapper/vgsrv-common after lvextend we need to run xfsgrow or resize2fs in case of ext*
# Extend the Logical Volume to 190 MB lvextend -r -L 190MB /dev/VGSRV/common # Create a Mount Point mkdir /mnt/common # Create a Filesystem mkfs.ext4 /dev/VGSRV/common # Update /etc/fstab echo "/dev/mapper/VGSRV-common /mnt/common ext4 defaults 0 0" >> /etc/fstab # Mount the Logical Volume mount -a # Reload systemd systemctl daemon-reload # Check the Mount mount
I don't know this answer. why 190M? definition size is 128M. so extend size 68M. plz help me. why this answer is 190M?
you can either use: lvextend -r L 190M /path/to/lvm OR lvextend -r L +62M /path/to/lvm The first option specifies the exact amount that is being requested (190), while the second options is adding the difference (190-128=62) to meet the requested storage amount.
Apologies, my 'L' requires a switch in front: `lvextend -r -L [...]`