Running "git pull" can mess up a very recently installed Map Pack [OSM]

[holta]

Implementer views this as bug, so I'm labeling this as a bug for now.

Anyway: quite unfortunate that a map pack just installed last week for Ghana was rendered inaccessible, apparently as a result of running this very common pre-flight recipe:

cd /opt/iiab/iiab
git pull
./iiab-install --reinstall

cd /opt/iiab/iiab-admin-console
git pull
./install

The error message when clicking from http://box to http://box/osm-vector-maps/en-osm-omt_africa_2017-07-03_v0.23/ was:

Not Found
The requested URL /osm-vector-maps/en-osm-omt_africa_2017-07-03_v0.23/ was not found on this server.

Apache/2.4.25 (Raspbian) Server at 10.8.0.38 Port 80

Can we consider better protecting maps that have very recently been downloaded?

Or if that's not possible, at least provide a clean error message in Plain English, explaining what options the implementer has to recover — e.g. perhaps delete /library/www/osm-vector-maps/en-osm-omt_africa_2017-07-03_v0.2 and/or whatever else is advisable?

(What is advisable, even if we just have to document this in http://FAQ.IIAB.IO for now?)

In any case, let's find ways to support & reward IIAB's most conscientious implementers & testers — dedicated people who set up their IIAB machines 1-2 months pre-flight, judiciously curating & fine-tuning content/software — during those essential weeks prior to field deployment/installation~

Closely Related: #1612 #1707 iiab/iiab-admin-console#211

[holta]

@georgejhunt & @tim-moody are helping work this out.

For IIAB 7.0, we just need very clean/actionable documentation, so implementers know exactly where to turn.

For IIAB 7 1, the answer likely lies among the map catalog / "subscription" ideas being discussed here:

#877
#1605
#1612
#1707
#1710
#1711
#1720
#1726
#1728
#1739

[holta]

Possibly related:

PR iiab/iiab-admin-console#211 "Download if filename is changed"

[holta]

Let's declare this documented workaround sufficient for IIAB 7.0:
https://github.com/iiab/iiab/wiki/IIAB-Maps#how-do-i-upgrade-an-iiab-map-pack