Fixed installations and xargs args.

install.sh

@@ -5,11 +5,11 @@ set -euo
 . /etc/os-release
 
 if [[ $ID == "debian" ]]; then
-  apt-get install -y rsync jq parallel
+  apt update && apt-get install -y rsync jq parallel
 #elif [[ $ID == "centos" ]]; then
 #  yum -y install jq rsync parallel
 elif [[ $ID_LIKE == "arch" ]]; then
-  pacman -S parallel jq rsync
+  pacman -Syyu && pacman -S parallel jq rsync
 else
   printf "Distro not found. Exiting."
   exit 1