Дайнгрейдиться не так то просто.
Заход на версии PHP Version 7.0.9 пакетов php, php-apache, php-gd не слишком удачен.
httpd не стартует.

Syntax error on line 1 of /etc/httpd/conf/mods-enabled/php.conf: Cannot load modules/libphp7.so into server: libreadline.so.6: cannot open shared object file: No such file or dir

и далее

warning: downgrading package readline (7.0.001-1 => 6.3.008-4)
resolving dependencies...
looking for conflicting packages...
error: failed to prepare transaction (could not satisfy dependencies)
:: bash: installing readline (6.3.008-4) breaks dependency 'readline>=7.0'

Сделал cсылку.

sudo ln -s /usr/lib/libreadline.so /usr/lib/libreadline.so.6.0
sudo ln -s /usr/lib/libreadline.so /usr/lib/libreadline.so.6

Заработало!
This Must Be The Place I Waited Years To Leave
Аналогичная дилемма. Загуглил, попал сюда.
Пишут что надо даунгрейдить php.

As reported here: https://github.com/owncloud/core/issues/25858#issuecomment-272661658 9.2.0 won't get released. Fix for 7.1 will be part of owncloud 10 - scheduled for end of March 2017.
This Must Be The Place I Waited Years To Leave
Список всех команд (шпаргалка)
[email protected] ~ # lsblk
[email protected] ~ # cfdisk
[email protected] ~ # mkfs.ext4 /dev/sda1
[email protected] ~ # mount /dev/sda1 /mnt
[email protected] ~ # mcedit /etc/pacman.d/mirrorlist
[email protected] ~ # pacstrap /mnt base base-devel grub os-prober mc
[email protected] ~ # genfstab -p /mnt >> /mnt/etc/fstab
[email protected] ~ # arch-chroot /mnt /bin/bash
[[email protected] /]# grub-install /dev/sda
[[email protected] /]# grub-mkconfig -o /boot/grub/grub.cfg
[[email protected] /]# exit
[email protected] ~ # umount /mnt
[email protected] ~ # reboot
...
[[email protected] ~]# fallocate -l 4G /swapfile
[[email protected] ~]# chmod 600 /swapfile
[[email protected] ~]# mkswap /swapfile
[[email protected] ~]# swapon /swapfile
[[email protected] ~]# echo /swapfile none swap defaults 0 0 >> /etc/fstab
[[email protected] ~]# echo tmpfs /tmp tmpfs nodev,nosuid,size=4G 0 0 >> /etc/fstab
[[email protected] ~]# systemctl enable dhcpcd
[[email protected] ~]# systemctl start dhcpcd
[[email protected] ~]# ping ya.ru
[[email protected] ~]# reboot
...
[[email protected] ~]# ping ya.ru
[[email protected] ~]# swapon
[[email protected] ~]# hostnamectl set-hostname myhostname
[[email protected] ~]# timedatectl set-timezone Asia/Yekaterinburg
[[email protected] ~]# mcedit /etc/locale.gen
#en_US.UTF-8
#ru_RU.UTF-8
[[email protected] ~]# locale-gen
[[email protected] ~]# locale -a
[[email protected] ~]# localectl set-locale LANG="ru_RU.UTF-8"
[[email protected] ~]# cat /etc/locale.conf
[[email protected] ~]# echo LC_MESSAGES=ru_RU.UTF-8 >> /etc/locale.conf
[[email protected] ~]# echo LC_COLLATE=C >> /etc/locale.conf
[[email protected] ~]# localectl set-keymap ru
[[email protected] ~]# cat /etc/vconsole.conf
[[email protected] ~]# echo FONT=cyr-sun16 >> /etc/vconsole.conf
[[email protected] ~]# reboot
...
[[email protected] ~]# mcedit /etc/pacman.conf
#[multilib]
#Include = /etc/pacman.d/mirrorlist
[[email protected] ~]# pacman -Sy
[[email protected] ~]# useradd -m -g users -G audio,games,lp,optical,power,network,scanner,storage,video,wheel -s /bin/bash qq
[[email protected] ~]# passwd qq
[[email protected] ~]# export EDITOR=mcedit
[[email protected] ~]# visudo
Defaults editor=/usr/bin/mcedit, !env_editor
%wheel ALL=(ALL) NOPASSWD: ALL
[[email protected] ~]# reboot
...
[[email protected] ~]$ sudo pacman -Sy
[[email protected] ~]$ sudo pacman -S xorg-server xorg-xinit xorg-server-utils xterm xorg-xclock xf86-input-synaptics
[[email protected] ~]$ sudo pacman -S xf86-video-vesa
[[email protected] ~]$ sudo pacman -S xf86-video-nouveau lib32-nouveau-dri
[[email protected] ~]$ sudo pacman -S xf86-video-ati lib32-ati-dri
[[email protected] ~]$ sudo cp /usr/share/X11/xorg.conf.d/50-synaptics.conf /usr/X11/xorg.conf.d/
[[email protected] ~]$ startx
[[email protected] ~]$ sudo mcedit /etc/X11/xorg.conf.d/00-keyboard.conf
us,ru
ctrl_shift_toggle
[[email protected] ~]$ sudo pacman -S xfce4 xfce4-goodies
[[email protected] ~]$ startxfce4
[[email protected] ~]$ cp /etc/X11/xinit/xinitrc ~/.xinitrc
exec startxfce4
[[email protected] ~]$ startx
This Must Be The Place I Waited Years To Leave
Удалить все пакеты kwallet*, поставить\переустановить libgnome-keyring, с ним заработало сохранение пароля ownCloud-клиента.
This Must Be The Place I Waited Years To Leave
Could not open wallet: org.freedesktop.DBus.Error.Noreply: Message recipient disconnected from message bus without replying

Развертывал по wiki, там ничего про настройку клиента толком нет.

kwalletmanager не вызывает никаких настроек, потому что... оказалось что kwalletd не работает kwalletd(10393): Communication problem with «kwalletd» , it probably crashed. Error message was: «org.freedesktop.DBus.Error.NoReply» : " «Message recipient disconnected from message bus without replying» "

Излечимо?
This Must Be The Place I Waited Years To Leave
sudo находится в base-devel :) тк что base-devel нужен по идее. и так же нужен при установке из AUR, там же есть не только готовые бинарники, но и вытяжка сорцев с пересборкой.
This Must Be The Place I Waited Years To Leave
Ну, коли так. Тогда можете и закрыть тему. :) Я отписываюсь.
Но по похожей проблеме эта тема гуглится очень хорошо. :)
This Must Be The Place I Waited Years To Leave
Эту ошибку выдает запуск xarchiver'a.
Но почему тогда при установке он не подтягивает unzip?
This Must Be The Place I Waited Years To Leave
Я окна так выстраиваю что мне не нужен тайловый :)
This Must Be The Place I Waited Years To Leave
Рабочий вариант
[Unit]
Description=Bluetooth auto power on
After=bluetooth.service sys-subsystem-bluetooth-devices-%i.device suspend.target hibernate.target

[Service]
Type=oneshot

ExecStartPre=/usr/bin/sleep 3
ExecStart=/usr/bin/hciconfig %i down
ExecStartPost=/usr/bin/hciconfig %i up

[Install]
WantedBy=suspend.target hibernate.target
This Must Be The Place I Waited Years To Leave