Rules for creating a "standard partition" when configuring a partition yourself

I want to create "Filesystem" and "Mounted on" by myself, but it doesn't work.
Is there no way to create it intentionally?

"Filesystem" is assigned in numerical order from the first, so if you adjust "Mounted on" to match it
I thought it was good, but as I created it, "Filesystem" corresponding to "Mounted on" was created along the way.
It will change.

Filesystem Size Used Avail Use% Mounted on
/ dev/sda3 509M 57M 453M 12%/
devtmpfs 487M 0 487M 0%/dev
tmpfs 497M 0 497M 0%/dev/shm
tmpfs 497M 6.7M 490M 2%/run
tmpfs 497M 0 497M 0%/sys/fs/cgroup
/ dev/sda2 1014M 831M 184M 82%/usr
/ dev/sda5 509M 74M 435M 15%/var
/ dev/sda6 509M 26M 483M 6%/var/sda10
/ dev/sda13 509M 26M 483M 6%/var/sda9
/ dev/sda11 509M 26M 483M 6%/var/sda7
/ dev/sda15 509M 26M 483M 6%/var/sda15
/ dev/sda12 509M 26M 483M 6%/var/sda8
/ dev/sda10 509M 26M 483M 6%/var/sda14
/ dev/sda9 509M 26M 483M 6%/var/sda13
/ dev/sda7 509M 26M 483M 6%/var/sda11
/ dev/sda8 509M 26M 483M 6%/var/sda12
/ dev/sda1 509M 112M 397M 23%/boot
tmpfs 100M 0 100M 0%/run/user/0

I am creating the same number at the end of/dev/sda and/var/sda.
As you create, the numbers will not be available.
* Since/var/sda15 is the last partition created, it can be created as intended.

Please let me know if there is a way to create it well.

  • Answer # 1

    I don't know how to fix it during installation, but how about creating and installing up to sda5 and creating the remaining partitions + file system manually after installation?
    As an aside, why not create a swap partition?