I know this comment is beyond the scope of your question and is also for others reading this thread.
Don't assume that the change to the partition size and filesystem size will survive a system upgrade as may be expected in other linux distros. There are many posts about lost files due to initialization of the partitions and filesystems during upgrades. There may be some devices/platforms that are ok but many are definitely not.
Be sure to have a good backup of your system and an up to date list of installed packages and all related configs for any state you want to restore to.