結局再インストールは叶わずだったけど、まあ、もう少し調査しましょ
# mount /home
mount: /home: /dev/sda2 already mounted or mount point busy.
Mounting non-root local filesystems:
mount: /home: /dev/sda2 already mounted or mount point busy.
mount: /var: /dev/sda2 already mounted or mount point busy.
mount: /var/tmp: mount point does not exist.
んん……?
This account is not set to public on notestock.