root@archiso ~ # df
Filesystem                       1K-blocks     Used Available Use% Mounted on
rootfs                              720632   337728    382904  47% /
dev                                 762528        0    762528   0% /dev
run                                 770224    16428    753796   3% /run
/dev/sr0                            427008   427008         0 100% /run/archiso/bootmnt
cowspace                           1155340     1552   1153788   1% /run/archiso/cowspace
/dev/loop0                          107008   107008         0 100% /run/archiso/sfs/root-image
/dev/mapper/arch_root-image         720632   337728    382904  47% /
/dev/loop3                           35584    35584         0 100% /run/archiso/sfs/usr-lib-modules
/dev/mapper/arch_usr-lib-modules     95195    41912     53283  45% /usr/lib/modules
/dev/loop6                           66304    66304         0 100% /run/archiso/sfs/usr-share
/dev/mapper/arch_usr-share          483946   189219    294727  40% /usr/share
tmpfs                               770224        0    770224   0% /dev/shm
tmpfs                               770224        0    770224   0% /sys/fs/cgroup
tmpfs                               770224        0    770224   0% /tmp
tmpfs                               770224      692    769532   1% /etc/pacman.d/gnupg
/dev/sda3                         22873344 12261100   9450344  57% /mnt/arch
/dev/sda1                            93307    21589     66901  25% /mnt/arch/boot
dev                                 762528        0    762528   0% /mnt/arch/dev