Linux: pacman could not find database

http://www.tuicool.com/articles/2MzQNj

Linux: pacman could not find database

时间 2015-06-12 21:16:10 IT Sprite
原文  http://www.itsprite.com/linux-pacman-could-not-find-database/

Question:

I want to install sudo . So I type in pacman -S sudo . But then I get the following errors:

warning: database file for 'extra' does not exist

warning: database file for 'community' does not exist

error: failed to prepare transaction ( could not find

database

)

How do I install the database files for ‘extra’ and ‘community’ ? I am in Arch Linux.

Answer:

Firstly, try running pacman -Syy , then try to install sudo again.

Check that the repositories are uncommented in /etc/pacman.conf .

Or your mirrorlist might be outdated: Generate a current list of mirrors and copy it to /etc/pacman.d/mirrorlist

Quoting from this relevant forum thread :

You can:

  • pick another mirror
  • try using an http mirror, not an ftp one (pick http mirror from the mirrorlist).

  • Alternatively you can manually download the databases with:

    wget ftp: // mirror.csclub.uwaterloo.ca / archlinux / community / os / x86_64 / community.db

    wget ftp: // mirror.csclub.uwaterloo.ca / archlinux / extra / os /

    x86_64

    /

    extra.db

    move them to /var/lib/pacman/sync/ and run ‘pacman -Syu’ again. If

    you find any *.part files in /var/lib/pacman/sync/ e.g.

    /var/lib/pacman/sync/core.db.part – remove them.

To prevent having problems like these it is critical to understand pacman. To learn more about using pacman, see the ArchWiki pacman article , and consult man pacman .

Via: http://unix.stackexchange.com/questions/34606/pacman-could-not-find-database

posted @ 2015-06-25 15:09  alxe_yu  阅读(1415)  评论(0)    收藏  举报