Undeletable file Post: 303036990

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Operating Systems OS X (Apple) Undeletable file Post 303036990 by MadeInGermany on Friday 19th of July 2019 03:18:25 PM

07-19-2019

Registered User

IMHO a glob match returns even unprintable characters.
So the last proposal does not improve anything.

And the clri command (didn't know it yet), will cause extra harm.
It is useless to clear the inode of the file, because an inode contains the data block structure and all meta information BUT THE FILENAME.
The filename and the pointer to the inode is stored in the directory.
The directory is another inode. To have an effect you must clear the directory inode.
I expect less damage with

Code:

unlink <directory>

if supported by the OS. If successful, you need a full file system check, in order to collect the dangling file inode and its data blocks.
I successfully did that a couple of times on a non-journaling UFS in single-user mode (no desktop, no other processes running).

I would go for a disk editor. Find the offending name, compare the shown bytes with the characters from the ls command, change one byte, save, compare again, ...

MadeInGermany

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LEARN ABOUT SUNOS

clri

clri(1M)						  System Administration Commands						  clri(1M)

NAME

       clri, dcopy - clear inode

SYNOPSIS

       clri [-F FSType] [-V] special i-number

       dcopy [-F FSType] [-V] special i-number

DESCRIPTION

       clri  writes  zeros  on the inodes with the decimal i-number on the file system stored on  special. After  clri, any blocks in the affected
       file show up as missing in an  fsck(1M) of special.

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

       The primary purpose of this routine is to remove a file that for some reason appears in no directory. If it is used to zap  an  inode  that
       does  appear  in  a directory, care should be taken to track down the entry and remove it. Otherwise, when the inode is reallocated to some
       new file, the old entry will still point to that file. At that point, removing the old entry will destroy the new file. The new entry  will
       again point to an unallocated inode, so the whole cycle is likely to be repeated again and again.

       dcopy is a symbolic link to clri.

OPTIONS

       -F FSType       Specify the  FSType on which to operate.
			The  FSType should either be specified here or be determinable from  /etc/vfstab by matching  special with an entry in the
		       table, or by consulting /etc/default/fs.

       -V	       Echo the complete command line, but do not execute the command. The command line is generated  by  using  the  options  and
		       arguments  provided by the user and adding to them information derived from /etc/vfstab. This option should be used to ver-
		       ify and validate the command line.

USAGE

       See largefile(5) for the description of the behavior of clri and dcopy when encountering files greater than or equal to 2 Gbyte	(  2 **31
       bytes).

FILES

       /etc/default/fs	       Default local file system type

       /etc/vfstab	       List of default parameters for each file system

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       fsck(1M), vfstab(4), attributes(5), largefile(5)

NOTES

       This command might not be supported for all FSTypes.

SunOS 5.10							    16 Sep 1996 							  clri(1M)