我在新的Arch系统中遇到了很多pacman相关的问题，我无法安装任何软件。
[root@life ~]# pacman -S pacaur
错误：未找到目标：pacaur
我尝试了包括pacman -Syyu、重新安装pacman以及修改mirrorlist等所有方法，这让我相信这可能是mirrorlist或pacman.conf的问题。
有人能够帮忙吗？
#
# /etc/pacman.conf
#
# See the pacman.conf(5) manpage for option and repository directives
#
# GENERAL OPTIONS
#
[options]
# The following paths are commented out with their default values listed.
# If you wish to use different paths, uncomment and update the paths.
#RootDir = /
#DBPath = /var/lib/pacman/
#CacheDir = /var/cache/pacman/pkg/
#LogFile = /var/log/pacman.log
#GPGDir = /etc/pacman.d/gnupg/
HoldPkg = pacman glibc
#XferCommand = /usr/bin/curl -C - -f %u > %o
#XferCommand = /usr/bin/wget --passive-ftp -c -O %o %u
#CleanMethod = KeepInstalled
#UseDelta = 0.7
Architecture = auto
# Pacman won't upgrade packages listed in IgnorePkg and members of IgnoreGroup
#IgnorePkg =
#IgnoreGroup =
#NoUpgrade =
#NoExtract =
# Misc options
#UseSyslog
#Color
#TotalDownload
CheckSpace
#VerbosePkgLists
# By default, pacman accepts packages signed by keys that its local keyring
# trusts (see pacman-key and its man page), as well as unsigned packages.
SigLevel = Required DatabaseOptional
LocalFileSigLevel = Optional
#RemoteFileSigLevel = Required
# NOTE: You must run `pacman-key --init` before first using pacman; the local
# keyring can then be populated with the keys of all official Arch Linux
# packagers with `pacman-key --populate archlinux`.
#
# REPOSITORIES
# - can be defined here or included from another file
# - pacman will search repositories in the order defined here
# - local/custom mirrors can be added here or in separate files
# - repositories listed first will take precedence when packages
# have identical names, regardless of version number
# - URLs will have $repo replaced by the name of the current repo
# - URLs will have $arch replaced by the name of the architecture
#
# Repository entries are of the format:
# [repo-name]
# Server = ServerName
# Include = IncludePath
#
# The header [repo-name] is crucial - it must be present and
# uncommented to enable the repo.
#
# The testing repositories are disabled by default. To enable, uncomment the
# repo name header and Include lines. You can add preferred servers immediately
# after the header, and they will be used before the default mirrors.
#[testing]
#Include = /etc/pacman.d/mirrorlist
[core]
Include = /etc/pacman.d/mirrorlist
[extra]
Include = /etc/pacman.d/mirrorlist
#[community-testing]
#Include = /etc/pacman.d/mirrorlist
[community]
Include = /etc/pacman.d/mirrorlist
# If you want to run 32 bit applications on your x86_64 system,
# enable the multilib repositories as required here.
#[multilib-testing]
#Include = /etc/pacman.d/mirrorlist
#[multilib]
#Include = /etc/pacman.d/mirrorlist
# An example of a custom package repository. See the pacman manpage for
# tips on creating your own repositories.
#[custom]
#SigLevel = Optional TrustAll
#Server = file:///home/custompkgs
显示pacman.conf文件。
##
## Arch Linux repository mirrorlist
## Sorted by mirror score from mirror status page
## Generated on 2014-12-28
##
## Score: 0.5, United States
Server = http://mirror.us.leaseweb.net/archlinux/$repo/os/$arch
## Score: 0.9, United States
Server = http://lug.mtu.edu/archlinux/$repo/os/$arch
## Score: 1.1, United States
Server = http://mirror.umd.edu/archlinux/$repo/os/$arch
## Score: 1.1, United States
Server = http://mirror.rit.edu/archlinux/$repo/os/$arch
## Score: 1.1, United States
Server = http://mirrors.acm.wpi.edu/archlinux/$repo/os/$arch
## Score: 1.1, United States
Server = http://archlinux.surlyjake.com/archlinux/$repo/os/$arch
## Score: 1.2, United States
Server = http://www.gtlib.gatech.edu/pub/archlinux/$repo/os/$arch
## Score: 1.2, United States
Server = https://mirrors.kernel.org/archlinux/$repo/os/$arch
## Score: 1.3, United States
Server = http://archlinux.pallissard.net/archlinux/$repo/os/$arch
## Score: 1.4, United States
Server = http://mirrors.cecsresearch.org/archlinux/$repo/os/$arch
## Score: 1.4, United States
Server = http://mirror.cs.pitt.edu/archlinux/$repo/os/$arch
## Score: 1.5, United States
Server = http://mirrors.cat.pdx.edu/archlinux/$repo/os/$arch
## Score: 1.7, United States
Server = http://mirror.jmu.edu/pub/archlinux/$repo/os/$arch
## Score: 1.8, United States
Server = http://mirror.grig.io/archlinux/$repo/os/$arch
## Score: 1.9, United States
Server = http://mirrors.aggregate.org/archlinux/$repo/os/$arch
## Score: 1.9, United States
Server = http://mirrors.kernel.org/archlinux/$repo/os/$arch
## Score: 2.0, United States