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I started to study the Solaris in my university. Teacher told me to do a hardlink to a directory. And he said that I can not to use mount command. For example: # mount -F lofs /dir1/dir2 /dir1/hardlink2
I know that Unix doesn't allowed hardlink to a directory. I was looking for other ways but I found nothing. And I don't know how I can do this hardlink.

Do you know way how create a hardlink to a directory in Solaris?

  • In most *nix operating systems, you have to be running as root (a.k.a. superuser) to create a hardlink to a directory. The operation is restricted because it can make a mess of a file system. See Linux: How does hard-linking to a directory work? – G-Man Oct 11 '14 at 17:55
  • @G-Man I'm running as root, but than I use ln command, it displays an error: .... is a directory. I read manual about ln. This command in Solaris has only 3 settings: -f-n (about messages), -s (symbolic link). So I can't use ln in this case. – Nikolay Bildeyko Oct 11 '14 at 18:15
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    Oh, yes, belt and suspenders. The operating system doesn't allow a process to create a hardlink to a directory unless it's running as root -- but also the ln program doesn't allow a user (any user) to do it. (1) Check the man page for ln on your system. There may be an option (like -d or -F) to tell ln to override the restriction. (2) Check to see whether you have a link command. (3) If those don't work, try writing a one-line C program to call the link system call. – G-Man Oct 11 '14 at 18:22
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    @G-Man link command works. Thank you very much. – Nikolay Bildeyko Oct 11 '14 at 18:30
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Looks like G-Man already gave you an answer, but another option, slightly sneaky if you have the automounter installed, you could use an automount. Depending on the needs, this may be a little bit cleaner since linking a directory can cause confusion.

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