How to determine sizes of partitions on a fresh install?

The only one you need is a data partition: so / for --a minimum-- of 25Gb (add a few if you want) and the remainder as a named partition.

Partitioning recommendations for installing Ubuntu 22.04 LTS on SSD/HDD · Root (/): 50 GB · /var (Variable Data): 20 GB · /usr (System Programs): ...

Ubuntu recommends at least 15GB for the system partition. However, if you want to play games and install many programs, I recommend 50GB or even ... Partitioning for Linux-only... · Creating Partitions · Partitioning to dual-boot Linux...

In general, it is recommended that the swap partition have at least twice the size of the installed RAM in the system. For example, if your computer has 8 ...

Description: the root partition contains by default all your system files, program settings and documents. Size: minimum is 8 GB. It is recommended to make it at least 15 GB .

Most Common Partition Scheme ; /usr, 20 GB at least ; /var, 2 GB ; /lib, 5 GB ; /boot, 250 MB.

Ubuntu recommends 25 GB of disk space for an installation. That sounds pretty good. Download Ubuntu Desktop.

For 1TB, 800GB can be partitioned for root folder. swap area. Create this as a logical partition. Size is usually the double of RAM size. EFI.

The /boot partition can be any size, but is recommended to be anywhere between 17MB and 25MB and no larger than 50MB.

The bare minimum required for Ubuntu 20.04 is about 25 GB. I usually use about 150 GB (or half of the disk space on the boot disk) because i ...