I also tried your script, on Ubuntu 10.04 / amd64. It didn’t in stall AIR but it did hose my Flash as well, and I have the similar problem as above where I get errors trying to re-install Flash now.

I have the same problem, did you find a way out? Thanks

The unfortunate side effect is that it completely hosed flash on my system. I am running a fairly fresh image of ubuntu 9.10 (64-bit) and all attempts to remove and reinstall the flash plugins since have failed.

From synaptic, trying to install the packages { flashplugin-installer, flashplugin-nonfree, nspluginwrapper } now always fail towards the end (I’ve tried completely removing them and reinstalling them, to no avail). Excerpt from the synaptic details pane : :

Download done.
Flash Plugin installed.
nspluginwrapper: no appropriate viewer found for /usr/lib/flashplugin-installer/libflashplayer.so
dpkg: error processing flashplugin-installer (–configure):
subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of flashplugin-nonfree:
flashplugin-nonfree depends on flashplugin-installer; however:
Package flashplugin-installer is not configured yet.
dpkg: error processing flashplugin-nonfree (–configure):
dependency problems – leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
Errors were encountered while processing:
flashplugin-installer
flashplugin-nonfree
E: Sub-process /usr/bin/dpkg returned an error code (1)
A package failed to install. Trying to recover:

http://sites.google.com/site/mlawire/installing-adobe-air-1-5-on-64-bit-ubuntu-linux/install-adobe-air-ubuntu-64bit.sh