How do I unlink directories created with ln -f?

[Mark Andrews]

In article <3575 at auspex.auspex.com> guy at auspex.auspex.com (Guy Harris) writes:
|>Suppose it's a bug in unlink.

|It is.  SunOS, for some unknown reason, disallows (at the system call
|level, not at the file system level!) *all* attempts to unlink
|directories, even by the super-user.

|>It seems really as if the only way would be a `clri' on the
|>inode of "dir1" and "dir2",

|They share the same inode; one "clri" is sufficient.

|>followed by a `fsck', which will remove the directories.

|...and shove everything that was in them into "lost+found", with cryptic
|names.

|Unless the directory in question was empty, I'd first make another
|directory at the same level as the link you wanted to keep, move
|everything (don't forget files, other than the obvious "." and "..",
|with names beginning with "."!) into the new directory, then do the
|unmount/clri/fsck.  (Don't forget the unmount.)

Fsck can actually pick this condition up (well it did it once). If you
move all links to the directory to a new directory, umount and run
fsck it should pick up the problem.

"IS AN EXTRANEOUS HARD LINK TO DIRECTORY" from strings of fsck.

Mark.