Span /home on multiple partitions

Question

I am going for installing Gentoo for the second time. I read that multiple swap partitions can be created and their entries in /etc/fstab can be prioritised with pri mount option. Just wanted to ask whether that can be done with /home too. Like
/dev/sda1 /home ext4 defaults,pri=1 0 2 and /dev/sda2 /home ext4 defaults,pri=2 0 2. Thanks!

ctrl-alt-delor · Answer

No not that way.
But there are other ways. Here are a few methods, they all do slightly different things.

Union file systems: create a layered file-system. A read-only as the base, then another overlay that is writable, and stored only the changes.
LVM, ZFS (and some other file systems): allow file-systems to span multiple partitions / disks.
Raid: allow file-systems to span multiple partitions / disks. (but for other reasons)
Symbolic linking: Allow you to make a file/sub-directory be in a different place.
Mount points in /home: Allow you to make a file/sub-directory be in a different place.

Span /home on multiple partitions

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