Given the output
----- output begins ------
root@openindiana:~# pkg update
Packages to update: 375
Create boot environment: Yes
Create backup boot environment: No
DOWNLOAD PKGS FILES XFER (MB) SPEED
Completed 375/375 5209/5209 181.4/181.4 878k/s
PHASE ITEMS
Removing old actions 1015/1015
Installing new actions 1017/1017
Updating modified actions 6585/6585
Updating package state database Done
Updating package cache 375/375
Updating image state Done
Creating fast lookup database Done
Updating package cache 2/2
A clone of openindiana-2023:03:03 exists and has been updated and activated.
On the next boot the Boot Environment openindiana-2023:03:05 will be
mounted on '/'. Reboot when ready to switch to this updated BE.
Updating package cache 2/2
---------------------------------------------------------------------------
NOTE: Please review release notes posted at:
https://docs.openindiana.org/release-notes/latest-changes/
---------------------------------------------------------------------------
----- output ends -----
what do the various phases mean? And what drives the decision whether to create
a new boot environment, or a backup boot environment (or maybe neither)?
Knowing those might be helpful if anything went badly wrong (although the
simplest remedy would be to fall back to a previous boot environment!) or if
one intended to create a package, and would certainly be more satisfying
waiting for the slower phases to complete, being able to say to oneself what it
was doing then. Oh, and why does "Updating package cache" appear twice?
Updates on Solaris 11 and derivatives (OpenIndiana, etc) are certainly very
robust (if packages and repositories are correct!) and provide generous means
of recovery. But they do seem to be quite slow compared to e.g. either Red Hat
based or Debian based Linux methods (yum or apt, or the underlying local-only
facilities). That's not counting download time either (since repository servers
are not all equal).
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