Previous Boot Selection Fails After Power Outage During Shutdown

Ben (et al):

Following the sequence of the provided instructions:

Continuing the discussion from Fix broken boot-loader:

Now we mount the root partition in Konsole:
# mount >partition device name< >destination directory<
Like this example:
# mount /dev/sda2 /mnt

The Konsole response is:

mount: mnt: mount point does not exist.
dmesg(1) more information after failed mount system call.

Checking KDE Partition Manager shows:

Mount point: (none found)

Please advise.
Thanks.
Mike