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Creating a hardlink to a file

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Operating Systems Solaris Creating a hardlink to a file
# 1  
Old 07-28-2008
Question Creating a hardlink to a file
I'm trying to relink a file someone tried to delete while a process (that we don't want to shutdown) also had a filehandle open to it.
Consequently, we've got an inode entry but no directory entry (aka 'file') for it.

I've tracked the inode number down via lsof, as well as the particular filehandle the process has within the /proc filesystem.

This filehandle is presented as a standard "file"/directory entry in /proc/<pid>/fd and I can read from it ok as I would any other file.

I was hoping to create a link to it back where it used to be but I keep getting a 'No such file or directory' error. I know I've got my ln syntax correct as I've tested it out on plain files elsewhere.
Code:
ln /proc/<pid>/fd/<handle> /path/to/application/logs/access

Is ln the tool to use here? Surely if I know the inode number, filehandle and what it used to be called, I can recreate it?
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LEARN ABOUT HPUX

clri

clri(1M)																  clri(1M)

NAME

       clri - clear inode

SYNOPSIS

       special i-number  ...

DESCRIPTION

       The  command  clears  the  inode i-number by filling it with zeros.  special must be a special file name referring to a device containing a
       file system.  For proper results, special should not be mounted (see WARNINGS below).  After is executed, all blocks in the  affected  file
       show up as "missing" in an of special (see fsck(1M)).  This command should only be used in emergencies.

       Read and write permission is required on the specified special device.  The inode becomes allocatable.

WARNINGS

       The  primary  purpose of this command is to remove a file that for some reason does not appear in any directory.  If it is used to clear an
       inode that does appear in a directory, care should be taken to locate the entry and remove it.  Otherwise, when the inode is reallocated to
       some  new file, the old entry in the directory will still point to that file.  At that point, removing the old entry destroys the new file,
       causing the new entry to point to an unallocated inode, so the whole cycle is likely to be repeated again.

       If the file system is mounted, is likely to be ineffective.

DEPENDENCIES

       operates only on file systems of type

SEE ALSO

       fsck(1M), fsdb(1M), ncheck(1M).

STANDARDS CONFORMANCE

       clri: SVID2, SVID3

																	  clri(1M)