[gentoo-user] No system list

[Bill Kenworthy <billk@iinet.net.au>]

I have a few older systems (~6-10 years in use) that have no system
list.  Over the years there have been various disasters and methods of
managing the software with the result that I have had to run regenworld
amongst other things.

So, how can I restore "system"? - the machine below has 115 packages
listed by depclean, and with a couple I know as critical - but its the
ones I dont know that are worrying me :)

BillK



myth1 ~ # emerge --depclean -vp

 * Depclean may break link level dependencies. Thus, it is
 * recommended to use a tool such as `revdep-rebuild` (from
 * app-portage/gentoolkit) in order to detect such breakage.
 * 
 * Always study the list of packages to be cleaned for any obvious
 * mistakes. Packages that are part of the world set will always
 * be kept.  They can be manually added to this set with
 * `emerge --noreplace <atom>`.  Packages that are listed in
 * package.provided (see portage(5)) will be removed by
 * depclean, even if they are part of the world set.
 * 
 * As a safety measure, depclean will not remove any packages
 * unless *all* required dependencies have been resolved.  As a
 * consequence, it is often necessary to run `emerge --update
 * --newuse --deep @world` prior to depclean.
!!! You have no system list.
!!! Proceeding is likely to break your installation.

Calculating dependencies... done!