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Description of problem:
2 problems here.

I did a custom install, with a /usr of 2.5 gb

I selected a goodly amount of packages for installation. Knew it would be close,
but
thought I was ok. (I DO have a /usr/src partition for the kernel sources).

at the begining of installation, it told me that /usr was short by 19 mb.
ok, fine, I backed up to the package selection, deleted a few packages, maybe 30
or 50 mb worth, and continued forward. This time I get the message:

	/ needs -1968056K

(that's the 1st problem)

I hit "ok", and the installation went forward without further ado, or
interaction.
The install completed ok, and I noted at the end that there was 189mb available
after install. I _know_ I did not remove ~200 kb worth of packages (the 19 it
was short, plus the 189 mb I ended up with...)

(the 2nd problem is that the original calculation of the about of space needed
is
off by about 10%, OR it did not take into consideration /usr/src)


Version-Release number of selected component (if applicable):


How reproducible:
Didn't try

Steps to Reproduce:
1. set up /usr as 2.5 gb
2. select individual packages
3. select most individual packages, amounting to close to 2600k
get the error about /usr not big enough, backup remove some packages, then
go forward.
	

Expected Results:  no way that the / should be computed as *MINUS* 1968056K
short

Additional info: