Code:
% sudo freebsd-update -r RELEASE-12.2 upgrade
Password:
Looking up update.FreeBSD.org mirrors... 3 mirrors found.
Fetching metadata signature for 12.1-RELEASE from update4.freebsd.org... done.
Fetching metadata index... done.
Inspecting system... done.
The following components of FreeBSD seem to be installed:
kernel/generic src/src world/base world/doc
The following components of FreeBSD do not seem to be installed:
kernel/generic-dbg world/base-dbg
Does this look reasonable (y/n)? y
Fetching metadata signature for RELEASE-12.2 from update4.freebsd.org... failed.
Fetching metadata signature for RELEASE-12.2 from update1.freebsd.org... failed.
Fetching metadata signature for RELEASE-12.2 from update2.freebsd.org... failed.
No mirrors remaining, giving up.
This may be because upgrading from this platform (i386)
or release (RELEASE-12.2) is unsupported by freebsd-update. Only
platforms with Tier 1 support can be upgraded by freebsd-update.
See https://www.freebsd.org/platforms/index.html for more info.
If unsupported, FreeBSD must be upgraded by source.
Reading the suggested link:
https://www.freebsd.org/platforms/index.html
i386 seems Tier 1.
So why this fetch errors?