Help: unable to save the system because of disk space

Hi Guys,

Last day i was updating the system with pacman -Syu command and because of electric shortage pc did shut down. And i couldn’t boot into system afterwards.

Im trying to install packages from arch linux installation usb and mounting the system.

I run this command:

pacman —root=/mnt -Qqn | pacman -S -

But i get error that says:

Partition / too full not enough disk space

But my system partition(dev/sda3) only %76 full and i have 70 gb space.

When i run “df” command, i see “dev/loop0” is full but thats my iso flash.

Can you please help me this issue?