Dave Miner wrote:
Shawn Walker wrote:
If this install is being performed using the LiveCD contents, then
offering selection of collections *before* installation isn't tenable
if you want to provide accurate size requirements -- especially for
network-based installs. It can certainly be done at the *end* of
installation though, once an installed image is available with far
less hassle.
That doesn't seem right - by including the live CD group in the plan
calculation you'd get a correct aggregate size.
The issue at hand is that you need an image to perform plan calculations.
Some assumptions I'm making about the Live CD image:
* the live cd doesn't have a way to mount all of /var/pkg somewhere that
is read-write and will have at least 100 megabytes (?) available
* that you want accurate size numbers that don't take into account extra
files that the live cd contains that the installed image will not
Some issues you will currently face are:
* For an accurate, aggregate estimate, that up to 18 MiB of
compressed manifest data would have to be retrieved since you'd have to
use an empty image (around 65 MiB uncompressed). That's not counting
the space you need for the catalogs and whatever else the package system
needs.
* plan calculation on the scale you're talking about can take a very
long time depending on available bandwidth and system speed, regardless
of whether the LiveCD was used as the image or you used the installed
system. This will be somewhat mitigated by the upcoming SAT solver, but
not completely.
The primary point I was making earlier is that you won't be able to get
accurate size numbers for individual collections for a network-based
install without having an image you can use for that plan calculation.
That is, you can't tell the user on the welcome screen, right away in a
few split seconds, that installing the LiveCD will take X amount of
space, and each collection will use Y amount of space.
Cheers,
--
Shawn Walker
_______________________________________________
pkg-discuss mailing list
[email protected]
http://mail.opensolaris.org/mailman/listinfo/pkg-discuss
