Various valid long-term desireable situations coexist, and while discussing immediate countermeasures, it is useful to keep the long-term outcome that those are most likely to produce.
-These are three possible situations for the fleet of bullseye (buster + 1) hosts:
-
-* `none`: "merged `/usr`" has been reverted; no bullseye hosts have `/{bin,sbin,lib}/`→ `/usr/{bin,sbin,lib}/` symlinks; only `cat` only exists at `/bin/cat`;
-* `weak`: bullseye hosts can have any of "merged `/usr`" or "classical" directory schemes; official packages are only built on "classical" directory schemes; packages built on "merged `/usr`" are allowed to break on "classical" directory schemes.
-* `hard`: bullseye hosts can have any of "merged `/usr`" or "classical" directory schemes; official packages are built on either "merged `/usr`" or "classical" directory schemes; packages built on either are forbidden to break on either directory schemes.
-* `all`: bullseyes hosts all have "merged `/usr`"; official packages are built on "merged `/usr`"; packages built on "classical" directory schemes are allowed to break on "classical" directory schemes.
+These are the five possible situations at the time of bullseye (buster + 1):
+
+* `none`: "merged `/usr`" has been happened
+* `weak`: both directory schemes are allowed, packages only built on classical hosts
+* `hard`: both directory schemes are allowed, packages can be built anywhere
+* `all` : only "merged `/usr`" directory schemes are allowed, packages only built on "merged `/usr`" hosts
+* `full`: only "merged `/usr`" directory schemes are allowed, symlinks have been removed
+
+It can be summarized by the following table:
+
+| | Host types that are allowed | Are merged-/usr | Official packages are built on | Packages built on … can break on the other |
+| Codename | classical hosts | merged-/usr hosts | symlinks allowed | classical hosts | merged-/usr hosts | classical hosts | merged-/usr hosts |
+|----------|-----------------|-------------------|------------------|—----------------|-------------------|---------------------|----------------------|
+| none | yes | no | no | yes | no | yes | yes |
+| weak | yes | yes | yes | yes | no | no | yes |
+| hard | yes | yes | yes | yes | yes | no | no |
+| all | no | yes | yes | no | yes | yes | no |
+| full | no | yes | no | no | yes | yes | yes |
## Immediate actions