growfs(7): clarify assumptions and limitations

[• karels]

Summary

Document that the growfs(7) script works only if the root file system
is in the last partition and free space immediately follows it.
Don't imply that /usr can be a separate partition, as that would
likely mean that root is not last.

Reported by: marklmi at yahooo dot com

[markmi_dsl-only.net]

Looks good to me.

The UFS partition/file-system vs. ZFS pool/data-sets distinctions make wide-coverage wording difficult/messy. But UFS is primary-use here and the wording fits well for that context. It would generally be more confusing to be explicit about both types of context.

(I've no clue what happens with boot media where ZFS owns the whole disk that contains the data-set used as / [so: no partitioning], if such is possible for / on some architecture.)

[pauamma_gundo.com]

Are you sure the reporter's email address (in the summary) is "yahooo" (3 o's) and not "yahoo" (2 o's)?

[• karels]

In D37959#862466, @pauamma wrote:

Are you sure the reporter's email address (in the summary) is "yahooo" (3 o's) and not "yahoo" (2 o's)?

Oops! Fixed in commit.

[• karels]

Commit 8664e266d6a4573d1875ee8f4ce0cdb091171780