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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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SRV(4)							     Kernel Interfaces Manual							    SRV(4)

NAME
srv, 9fs, dk232, dkmodem - start network file service SYNOPSIS
srv [ -m ] [net!]system[!service] [ srvname [ mtpt ] ] 9fs [net!]system [mountpoint] dk232 [server] dkmodem [telno] DESCRIPTION
Srv dials the given machine and initializes the connection to serve the 9P protocol. It then creates in /srv a file named srvname. Users can then mount (see bind(1)) the service, typically on a name in /n, to access the files provided by the remote machine. If srvname is omitted, the first argument to srv is used. Option m directs srv to mount the service on /n/system or onto mtpt if it is given. The specified service must serve 9P. Usually service can be omitted; when calling some non-Plan 9 systems, a service such as u9fs must be mentioned explicitly. The 9fs command does the srv and the mount necessary to make available the files of system on network net. The files are mounted on mount- point, if given; otherwise they are mounted on /n/system. If system contains characters, only the last element of system is used in the /n name. 9fs recognizes some special names, such as dump to make the dump file system available on /n/dump. 9fs is an rc(1) script; examine it to see what local conventions apply. Dk232 configures a serial line as a Datakit device and connects to a file server (default bootes) using 9fs. Dkmodem dials a file server at telephone number telno and configures the line as a Datakit device using 9fs. EXAMPLES
To see kremvax's and deepthought's files in /n/kremvax and /n/deepthought: 9fs kremvax 9fs hhgttg/deepthought NOTE
The TCP port used for 9P is 564. FILES
/srv/* ports to file systems and servers posted by srv and 9fs SOURCE
/sys/src/cmd/srv.c /rc/bin/9fs /rc/bin/dk232 /rc/bin/dkmodem SEE ALSO
bind(1), dial(2), srv(3), ftpfs(4), dkconfig(8) SRV(4)
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