Undeletable file Post: 303036985

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Operating Systems OS X (Apple) Undeletable file Post 303036985 by hicksd8 on Friday 19th of July 2019 11:33:44 AM

07-19-2019

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Like MadeInGermany, I'm not a MAC user either so I'm now going to talk generic Unix/Linux only. You will need a MAC expert to guide you if you want to use anything I'm going to say now.

Many Unix/Linux OS's implement an often undocumented command called clri which will destroy an inode (by writing zeros to it). A nuclear option. A quick search on Google tells me that MacOS implements this command too. I also see that it implements fsck_hfs.

Therefore my final nuclear option on an OS I'm expert on would be:
1. Ensure that you have just completed a backup of the filesystem (and perhaps preferably the whole system) and know how to restore if it goes wrong. Keep users off afterwards.
2. ls -li has given you the inode number of zombie so run clri to nuke it. BE CAREFUL to specify the correct filesystem on the command line if you have more than one filesystem otherwise you could zap the wrong inode. I cannot give you the MacOS syntax. Try man clri to see if it's offically documented.
3. Once the inode is nuked go into single user mode and run fsck_hfs. The allocated blocks for zombie should show as "missing blocks" and the utility should ask your okay to fix the superblock.

Now I repeat, this is a generic suggestion and you should await input from a MacOS expert on here as to whether they think this method is a goer. I take no responsibility whatsoever but it is how I would fix such a problem on some Unix/Linux filesystems.

This will be my last post to this thread because I'm out of my comfort zone.

Last edited by hicksd8; 07-19-2019 at 01:01 PM..

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term_send

term::send(n)							 Terminal control						     term::send(n)

__________________________________________________________________________________________________________________________________________________

NAME

       term::send - General output to terminals

SYNOPSIS

       package require Tcl  8.4

       package require term::send  ?0.1?

       ::term::send::wrch chan str

       ::term::send::wr str

_________________________________________________________________

DESCRIPTION

       This  package provides the most primitive commands for sending characters to a terminal. They are in essence convenient wrappers around the
       builtin command puts.

       ::term::send::wrch chan str
	      Send the text str to the channel specified by the handle chan.  In contrast to the builtin command puts this command does not termi-
	      nate  the  string  with a line terminator. It also forces an  flush of Tcl internal and OS buffers to ensure that the characters are
	      processed immediately.

       ::term::send::wr str
	      This convenience command is like ::term::send::wrch, except that the destination channel is fixed to stdout.

BUGS, IDEAS, FEEDBACK
       This document, and the package it describes, will undoubtedly contain bugs and other problems.  Please report such in the category term	of
       the  Tcllib  SF	Trackers [http://sourceforge.net/tracker/?group_id=12883].  Please also report any ideas for enhancements you may have for
       either package and/or documentation.

KEYWORDS

       character output, control, terminal

CATEGORY

       Terminal control

COPYRIGHT

       Copyright (c) 2006 Andreas Kupries <andreas_kupries@users.sourceforge.net>

term									0.1							     term::send(n)