emerge -u world

alden · n00b Joined: 25 Feb 2003 Posts: 18

Can some one tell me ,what exactly (emerge -u world) do ?
I`m making this quation cuase when i do emerge -u world i don`t see nothing happen,only it tell me that all packages are up to date.
I`m not sure is this right.I would like to know how long this process is (emerge -u world).

Any help will be apreciate.

ravenq · Apprentice Joined: 19 Feb 2003 Posts: 161

emerge -u world basically updates all the software on your system. Most of the time it won't take all that long because large numbers of packages aren't usually updated all at once.

It's basically the eqiuvalent of apt-get update (or whatever the command is) in Debian.
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vivek · Posted: Tue Feb 25, 2003 8:45 am Post subject: re: emerge world -u

Hi
Try "emerge world --deep -up".

--deep instructs emerge to calculate the dependencies in a much more comprehensive manner.

BillyD · Guru Joined: 05 May 2002 Posts: 323 Location: Australia

It uses the file /var/cache/edb/world to determine which software is on your system, and compares it with the latest unmasked release available in portage. If the portage version is different to the installed version, it will prompt you to either upgrade or downgrade. It also checks all of your system files (you can check these spearately by emerge system -up) and will update those as well. I am not 100 percent sure, but the system files are very similar to the files that are installed when you bootstrap doing a normal install. Basically the "essential" files to get your system running.
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water · Posted: Tue Feb 25, 2003 12:01 pm Post subject:

Before running "emerge -u --deep world", you have to update the portage-tree. When installing Gentoo, you have to run "emerge rsync" . With that command you download the portage-tree. The packages that will be installed are the newest stable packages, according to the portage-tree. If you run "emerge sync", your portage-tree will be updated and will contain a new list with stable and unstable packages.

So, always run "emerge sync", than "emerge -up --deep world" (-p = pretend-option, it gives the list of packages for updating) and than run "emerge -u --deep world".
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alden · n00b Joined: 25 Feb 2003 Posts: 18

Thank you very much.
Now every think is much clear for me.

pjp · Administrator Joined: 16 Apr 2002 Posts: 20067

Moved from Installing Gentoo.
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