在 Arch Linux 更新套件時出現下面的錯誤訊息
# pacman -Syu
:: Synchronizing package databases…
core is up to date
extra is up to date
community is up to date
alarm is up to date
aur is up to date
:: Starting full system upgrade…
error: duplicated database entry ‘pacman-mirrorlist’[@more@]解決方式：
1. 檢查 /var/lib/pacman/local 目錄下是否有重複
# ls /var/lib/pacman/local | grep pacman-mirrorlist
pacman-mirrorlist-20151217-1
pacman-mirrorlist-20151228-1
2. 移除掉舊的重複
# rm -rf /var/lib/pacman/local/pacman-mirrorlist-20151217-1