03-14-2013
The files you're trying to modify are located on a filesystem that was mounted read-only. No changes can be made to files on a read-only filesystem. That is what read-only means; no writes allowed.
If you need to change those files, you need to unmount that filesystem and remount it with the read-only attribute unset.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
HP UX 11i
Ok my server is about to run out of space, and i would like to know if there is something that i should be doing on a regular basis to maintain the machine like logs that i should clear or dmp file that i should delete...
Thanks in Advance (2 Replies)
Discussion started by: bbutler3295
2 Replies
2. UNIX for Dummies Questions & Answers
All,
I want to run a non-root script as the root user with non-root environment variables with crontab. The non-root user would have environment variables for database access such as Oracle or Sybase. The root user does not have the Oracle or Sybase enviroment variables. I thought you could do... (2 Replies)
Discussion started by: bubba112557
2 Replies
3. UNIX for Dummies Questions & Answers
hi
i am new to unix and i have abig task. i have to \run particular commands having root privileges from a non root user. i know sudo is one of the way but i need sum other approach kindly help
Thanks (5 Replies)
Discussion started by: suryashikha
5 Replies
4. UNIX for Dummies Questions & Answers
I've tried to figure this out.
I'm only about 6 mos into my AIX admin duties, but I've got a "security" problem I can't figure out.
I've created a sub directory as follows:
drwx------ 2 root system 256 Apr 13 16:02 mike
I've logged in another session with the following user:
$ id... (2 Replies)
Discussion started by: mpheine
2 Replies
5. Solaris
Hi All,
I am trying to uninstall jdk 1.5 from my Solaris 10 64 bit but some how was not successful.so tried to delete the folder of jdk from /usr but its throughing error as:
Unable to remove directory jdk: Read-only file system
Even I tried to create a dir in /usr but its not allowing me... (4 Replies)
Discussion started by: Pshah
4 Replies
6. Shell Programming and Scripting
So I have a script that runs as a non-root user, lets say the username is 'xymon' .
This script needs to log on to a remote system as a non-root user also and call up a bash script that runs another bash script as root.
in short: user xymon on system A needs to run a file as root user and have... (2 Replies)
Discussion started by: damang111
2 Replies
7. UNIX for Dummies Questions & Answers
I've been through many threads before i decide to create a separate thread.
I can't really find the solution to my (simple) problem.
Here's what I'm trying to achieve:
As "canar" user I want to run a command, let's say "/opt/ocaml/bin/ocaml" as "duck" user.
The only to achieve this is to... (1 Reply)
Discussion started by: canar
1 Replies
8. Solaris
Hi All
After downloading ZFS documentation from oracle site, I am able to successfully migrate UFS root FS without zones to ZFS root FS. But in case of UFS root file system with zones , I am successfully able to migrate global zone to zfs root file system but zone are still in UFS root file... (2 Replies)
Discussion started by: sb200
2 Replies
9. Shell Programming and Scripting
Currently in my system Red Hat is installed. And Many user connect to my machine via SSH Techia Terminal.
I want to give some users a root level access.
Can anyone please help me how to make it possible. I too searched on the Google but didn't find the correct way
Regards
ADI (4 Replies)
Discussion started by: adisky123
4 Replies
10. UNIX for Dummies Questions & Answers
Is there any way to create a file in linux that root user also can't delete? (8 Replies)
Discussion started by: palani13dec
8 Replies
LEARN ABOUT V7
xfs_freeze
xfs_freeze(8) System Manager's Manual xfs_freeze(8)
NAME
xfs_freeze - suspend access to an XFS filesystem
SYNOPSIS
xfs_freeze -f | -u mount-point
DESCRIPTION
xfs_freeze suspends and resumes access to an XFS filesystem (see xfs(5)).
xfs_freeze halts new access to the filesystem and creates a stable image on disk. xfs_freeze is intended to be used with volume managers
and hardware RAID devices that support the creation of snapshots.
The mount-point argument is the pathname of the directory where the filesystem is mounted. The filesystem must be mounted to be frozen
(see mount(8)).
The -f flag requests the specified XFS filesystem to be frozen from new modifications. When this is selected, all ongoing transactions in
the filesystem are allowed to complete, new write system calls are halted, other calls which modify the filesystem are halted, and all
dirty data, metadata, and log information are written to disk. Any process attempting to write to the frozen filesystem will block waiting
for the filesystem to be unfrozen.
Note that even after freezing, the on-disk filesystem can contain information on files that are still in the process of unlinking. These
files will not be unlinked until the filesystem is unfrozen or a clean mount of the snapshot is complete.
The -u flag is used to un-freeze the filesystem and allow operations to continue. Any filesystem modifications that were blocked by the
freeze are unblocked and allowed to complete.
One of -f or -u must be supplied to xfs_freeze.
NOTES
A copy of a frozen XFS filesystem will usually have the same universally unique identifier (UUID) as the original, and thus may be pre-
vented from being mounted. The XFS nouuid mount option can be used to circumvent this issue.
In Linux kernel version 2.6.29, the interface which XFS uses to freeze and unfreeze was elevated to the VFS, so that this tool can now be
used on many other Linux filesystems.
SEE ALSO
xfs(5), lvm(8), mount(8).
xfs_freeze(8)