Proxmox Ubuntu Disk Resize
If you have installed Ubuntu on Proxmox there is a chance at somepoint that your /dev/mapper partition will become full.
To expand it. Log into Proxmox, Resize the LVM by adding xG.
SSH onto your Ubuntu VM
df -h
(shows the issue)
/dev/mapper/ubuntu--vg-ubuntu--lv 19G 13G 4.8G 74% /
fdisk -l
sudo /sbin/lvresize -l +100%FREE /dev/mapper/ubuntu--vg-ubuntu--lv
sudo /sbin/resize2fs /dev/mapper/ubuntu--vg-ubuntu--lv
Done
EDIT: I ran into some issues when the LVM part is full and it cant write any changes. Try the Following
sudo apt-get clean
sudo pvresize /dev/sda3
sudo lvextend /dev/mapper/ubuntu--vg-ubuntu--lv -l+100%FREE
reboot
EDIR2:
Further issues when resize doesnt work
lsblk
shows the disk SDA and the partitions.
sudo fdisk /dev/sda
P = shows partitions
d = deletes a partition in this case sda3
n = create new partition - default to 3
first sector should be the same as the previous deleted partiton
end sector will be the new end
do you want to remove signatures = NO
w = write
DONE