oracle has tools to increase disk sise for Oracle Image, but not ubuntu, we need to do it manualy
The script internally calls growpart from cloud-guest-utils and resize2fs. So if you are not using LVM etc, to grow main ext4 partition of a boot volume in Ubuntu, simply run:
1 | sudo growpart /dev/sda 1 |
Since Oracle puts the boot partition after main, to be safe you can also install efibootmgr and check
1 | efibootmgr -v |
output. If yours also looks like
1 | Boot0002* UEFI ORACLE BlockVolume PciRoot(0x0)/Pci(0x12,0x7)/Pci(0x0,0x0)/SCSI(0,1)N.....YM....R,Y. |
then it means it uses SCSI disk/partition number to locate boot partition and it should be safe to reboot now.