Big news for smallOpenBSD /usrpartitions
Ever ran into issues using sysupgrade on OpenBSD because /usr ran out of space? OpenBSD developers are trying to address this issue.
Firstly, Stuart Henderson (sthen@)modifiedthe installer to increase free space prior to installing. [...] Theo de Raadt (deraadt@)modifiedsysupgrade(8) so that, if space is too tight, it will fail gracefully rather than risk leaving the administrator with a broken system.
OpenBSD Journal
These are very welcome additions.