Recommendation for 139->141 upgrade

I’m not sure I understand this statement:
“On systems that have a 2GB root partition and many add-ons installed, disk space might be running out.”

My system is partitioned as follows:

Disk /dev/sda: 74.5 GiB, 80000000000 bytes, 156250000 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x159da807

Device     Boot   Start       End   Sectors  Size Id Type
/dev/sda1  *       2048    264191    262144  128M 83 Linux
/dev/sda2        264192    329727     65536   32M ef EFI (FAT-12/16/32)
/dev/sda3        329728   1345555   1015828  496M 82 Linux swap / Solaris
/dev/sda4       1345556 156247951 154902396 73.9G 83 Linux

Is the /root partition /dev/sda1?

Would you recommend doing a backup, installing 141 from scratch, and restoring the backup or just do the 139-141 upgrade as I’ve done in the past?

Your root partition is /dev/sda4, /dev/sda1 is your boot partition.
Therefore the warning doesn’t apply to you.

Thank you. I guess I would have understood if the blog had said root (/) partition.