You might be running out of RAM.
I might suggest trying to create a swapfile or zram before install.
For a swapfile (this is embedded in a larger guide):
[HowTo] Add a backing SWAP device to zram (and enable hibernation)
*(To activate /swapfile without a restart run sudo swapon /swapfile instead)
For zram:
[HowTo] Install and configure zram using zram-generator
*(I should add a section there for starting zram right away… in the example it would be
systemctl start systemd-zram-setup@zram0.service instead of a restart)
If inxi and mhwd are hanging … this might indicate a deeper issue.
Usually something like broken drivers or similar is what would cause inxi to stutter indefinitely.
(like very broken … usually inxi will run fine regardless)
We might also wonder about which ISO is being used? Is it very old?