Error on pacstrap -c /mnt base linux

[larsinka]

This method fails on 'pacstrap -c /mnt base linux'

I'm on a system with 2GB flash only. Created the partitions as described, 1.8GB for root available. Pacstrap says 'Total Installed Size: 652.85MiB' -> should fit.

After 'Proceed with installation? [Y/n]' :
'warning: couldn't find or create package cache, using /tmp/ instead
error: Partition / too full: 75379 blocks needed, 64344 blocks free
error: failed to commit transaction (not enough free disk space)' .. etc

'df -h' says:
'/dev/sda2 1.8G 11M 1.7G 1% /mnt
/dev/sda1 123M 512 123M 1% /mnt/boot'

Is this method still valid?