Emerge

Getting started with emerge

Emerge is the front-end for funtoo's portage package manager. With emerge its easy to install, update or remove packages.

Update package database

Sync local package database.

root # emerge --sync

Search packages

Search packages by name.

root # emerge -s firefox
root # emerge --search firefox

Search packages by description.

root # emerge -S web browser
root # emerge --searchdesc web browser

Install packages

Install package.

root # emerge firefox

Install multiple packages.

root # emerge firefox thunderbird

Install package. Ask for confirmation before performing any changes. Show verbose output.

root # emerge -av firefox

Remove packages

Remove package.

root # emerge -C firefox
root # emerge --unmerge firefox

Remove package. Ask for confirmation before performing any changes.

root # emerge -aC firefox

Remove orphaned packages. Ask for confirmation before performing any changes.

root # emerge -a --depclean

Update packages

Update all packages.

root # emerge -uDN @world

Update all packages. Ask for confirmation before performing any changes. Show verbose output.

root # emerge -uavDN @world

Emerge options

--sync

Updates the portage tree that is located in /usr/portage by default.

--search -s

Searches for matches of the supplied string in the portage tree.

--searchdesc -S

Matches the search string against the description field as well as the package name.

--ask -a

Ask for confirmation before performing any changes.

--pretend -p

Instead of actually performing the merge, simply display what *would* have been installed if --pretend weren't used.

--unmerge -C

Removes all matching packages.

--update -u

Updates packages to the best version available, which may not always be the highest version number due to masking for testing and development.

--deep [DEPTH] -D

force emerge to consider the entire dependency tree of packages, instead of checking only the immediate dependencies of the packages.

--newuse -N

Tells emerge to include installed packages where USE flags have changed since compilation.

--depclean -c

Remove orphaned packages. Cleans the system by removing packages that are not associated with explicitly merged packages.

--autounmask-write

Automatically write package.use settings as necessary to satisfy dependencies.

--resume -r

Resumes the most recent merge list that has been aborted due to an error.

--jobs[=JOBS] -j [JOBS]

Specifies the number of packages to build simultaneously.

--load-average [LOAD]

Specifies that no new builds should be started if there are other builds running and the load average is at least LOAD (a floating-point number).

Configuration

Emerge can be configured with /etc/portage/make.conf

CFLAGS="-march=native -O2 -pipe"
CXXFLAGS="-march=native -O2 -pipe"

MAKEOPTS="-j2"
EMERGE_DEFAULT_OPTS="--jobs 2 --load-average 2"
INPUT_DEVICES="evdev synaptics"
VIDEO_CARDS="intel i965"
LINGUAS="en en_US en_GB"
ACCEPT_LICENSE="*"

USE="mmx mmxext sse sse2 sse3 ssse3 threads alsa X gtk xcb dri opengl vaapi udev \
     svg x264 xvid gstreamer webm vpx icu bash-completion vim-pager \
     -gnome -xscreensaver -cups -fortran -deprecated -iptables -ipv6 -geoloc \
     -mta -sendmail -kmod -tiff -live -quicktime -real -gpm -themes"

Per-package use flags can be configured with /etc/portage/package.use

x11-wm/dwm savedconfig
media-sound/ncmpcpp visualizer clock taglib

If you want to install package that has not been tested on your architecture you need to edit /etc/portage/package.accept_keywords

=app-misc/screenfetch-9999 **

Further info

For further info see emerge man page.

user $ man emerge