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Operating Systems Solaris Not able to edit files present in mounted directory Post 302427062 by deindorfer on Thursday 3rd of June 2010 05:32:52 PM
Old 06-03-2010
Undeleteable files: Immutable Bit Set?

check out the man pages for the /usr/bin/lsattr and /usr/bin/chattr command ( by Remy Card ).

They can do some pretty interesting things to files and filesystems, including setting the immutable bit ( LINUX_CAP_IMMUTABLE ) on a given file like so ( as root ):

Code:
shell> chattr +i  filename.txt

Not even root cannot modify this file in any way, no matter who owns it or how it is chmodded.

to undo that operation, as root:

Code:
shell> chattr -i  filename.txt

It's probably not what going on, but if all else fails, including an SELinux check, that could be what is hanging you up.

HTH

Scott

Last edited by deindorfer; 06-03-2010 at 06:36 PM.. Reason: Correct Typo
 

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LSATTR(1)						      General Commands Manual							 LSATTR(1)

NAME
lsattr - list file attributes on a Linux second extended file system SYNOPSIS
lsattr [ -RVadlpv ] [ files... ] DESCRIPTION
lsattr lists the file attributes on a second extended file system. See chattr(1) for a description of the attributes and what they mean. OPTIONS
-R Recursively list attributes of directories and their contents. -V Display the program version. -a List all files in directories, including files that start with `.'. -d List directories like other files, rather than listing their contents. -l Print the options using long names instead of single character abbreviations. -p List the file's project number. -v List the file's version/generation number. AUTHOR
lsattr was written by Remy Card <Remy.Card@linux.org>. It is currently being maintained by Theodore Ts'o <tytso@alum.mit.edu>. BUGS
There are none :-). AVAILABILITY
lsattr is part of the e2fsprogs package and is available from http://e2fsprogs.sourceforge.net. SEE ALSO
chattr(1) E2fsprogs version 1.44.1 March 2018 LSATTR(1)
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