Why does Finder see volumes which are not under /Volumes? If I navigate as high as possible in Finder (under 10.10.2, but this did not appear only recently), I see this window, with many volumes which are long unmounted, ejected and erased.



But if I tried to look around in the Terminal to potentially delete these, it only found the reasonable ones:

Laszlo-Sandors-MacBook-Pro:Volumes laszlosandor$ ls -la
total 24
drwxrwxrwt@  5 root          admin   170 Dec 28 09:04 .
drwxr-xr-x  47 root          wheel  1666 Dec 26 10:57 ..
-rw-r--r--@  1 laszlosandor  admin  6148 Jul 17 18:33 .DS_Store
lrwxr-xr-x   1 root          admin     1 Dec 26 10:51 Macintosh HD -&gt; /
drwxrwxrwx   0 root          wheel     0 Dec 28 10:51 MobileBackups


Disk Utility only sees Macintosh HD.

What is going on, and what is there to do?
Finder will show all mounted volumes, regardless of where it's mounted from.

Open up Terminal (from Applications -> Utilities) and type 'mount' then hit enter. You'll get output similar to this:

alex@smiley:~|⇒  mount
/dev/disk3s2 on / (hfs, local, journaled)
devfs on /dev (devfs, local, nobrowse)
map -hosts on /net (autofs, nosuid, automounted, nobrowse)
map auto_home on /home (autofs, automounted, nobrowse)
/dev/disk8s2 on /Users (hfs, local, nodev, nosuid, journaled, noowners)


This shows what's mounted, and where. I have a disk mounted under /Users and Finder still shows it at the top level.

This should tell you where those volumes are coming from.

Also, try clicking on one and either cmd-I, or File -> Get Info, to see what Finder thinks it is.