Is there a command to mount a folder from one partition to my main partition?
Example of what I'd like to do, which obviously doesn't work:
mount /media/tc1/folder /home/dvad/home
If not by using a command, is there another way I can do this?
Yes but before I go that far, couldn't you just symlink?
ln -s /media/tc1/folder ~/home
This link is just a file that is interpreted. It is automatically permanent (until you delete the file).
Failing that you can use
mount as you described but the syntax is slightly different:
mount --bind /media/tc1/folder /home/dvad/home
This is not permanent at all, and will be nuked by a restart. If you want it to persist, you'll need something in your
/etc/fstab like this:
/media/tc1/folder /home/dvad/home none bind
If you're trying a mount and it's not working, you should make sure that the block-level device is mounted. You can't directly mount a subdirectory of a partition without first mounting the partition.
An alternative to
bindfs -n /media/tc1/folder /home/dvad/home
sudo apt-install bindfs.
mount, this will be a (non-permanent) actual mount point, i.e. for instance not tracked as only a reference but version-control systems. But like
ln -s, it does not require superuser permissions like
fusermount -u /home/dvad/home (or by restarting).