[gentoo-user] emerge -u question

[Carlos Molina Garcia]

Hi folks.

I'm new on gentoo, and I appreciate it a lot.
I have a little question about emerge.

1) What are the function of the -u option on emerge..???
Lokk at this example.
emerge -pu postgresql

These are the packages that I would merge, in order:

Calculating dependencies ...done!
[ebuild UD] dev-java/blackdown-jdk-1.3.1-r7 [1.4.1_beta]
[ebuild U ] sys-libs/ncurses-5.3-r1 [5.2.20020511-r3]
[ebuild U ] sys-apps/texinfo-4.3-r1 [4.2-r5]
[ebuild U ] sys-devel/autoconf-2.54 [2.53a]
[ebuild U ] dev-lang/python-2.2.2 [2.2.1-r5]
[ebuild UD] dev-java/ant-1.5.1-r2 [1.5.1-r3]
[ebuild UD] dev-python/egenix-mx-base-2.0.3 [2.0.4]
[ebuild UD] dev-db/postgresql-7.3 [7.3.1]


and now without the -u

emerge -p postgresql

These are the packages that I would merge, in order:

Calculating dependencies ...done!
[ebuild UD] dev-db/postgresql-7.3 [7.3.1]


but the man emerge says me it.

--update (-u)
Updates packages to the most recent version available. Note that --update does not
have full functionality yet. It will not automatically update dependencies of pack-
ages in the world file, unless they too are in the world file.

Then, what are the correct procedure to update a package...??

NOTE: I made a mistake on my make.conf and uncomment the ACCEPT_KEYWORDS="~x86" and now, I have some testing packages installed. I'm wait that developers promote these packages to stable branch, but take the above lines only like an example.

Thanks a lot..

Carlos


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