04-22-2002
Backups
I have been using the hostdump.sh backup script for over a year now and have recently run into a problem. I'm now getting the following error at the end of my jobs;
/bin/mt -f: error fsf'ing tape.
This script uses the native 'ufsdump'. So, I try to go back and read the last dump on the tape (ufsrestore) and I get the response;
Media read error: Error 0
I have tried removing the last file system backed up from the job, but I get the same error from even other machines that are put on the tape. I can read all the other volumes on the tape with no problems, just the last one is failing. This is the HP DLT80e drive and I have used a cleaner tape recently. I've cycled the power on both the tape drive and the host machine. I have also tried retensioning the tape before running the backup. This has happened on at least 10 different tapes, so I know it's not the media. There isn't much to maintaining this drive, I have followed all that HP has outlined. Another funny thing is that I have manually run a backup on a single machine and that completed with no errors. This is an odd problem, but if anyone has encountered anything similar, please let me know. Thank you.
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LEARN ABOUT CENTOS
consolehelper
CONSOLEHELPER(8) System Manager's Manual CONSOLEHELPER(8)
NAME
consolehelper - A wrapper that helps console users run system programs
SYNOPSIS
progname [ options ]
DESCRIPTION
consolehelper is a tool that makes it easy for console users to run system programs, doing authentication via PAM (which can be set up to
trust all console users or to ask for a password at the system administrator's discretion). When possible, the authentication is done
graphically; otherwise, it is done within the text console from which consolehelper was started.
It is intended to be completely transparent. This means that the user will never run the consolehelper program directly. Instead, pro-
grams like /sbin/shutdown are paired with a link from /usr/bin/shutdown to /usr/bin/consolehelper. Then when non-root users (specifically,
users without /sbin in their path, or /sbin after /usr/bin) call the "shutdown" program, consolehelper will be invoked to authenticate the
action and then invoke /sbin/shutdown. (consolehelper itself has no priviledges; it calls the userhelper(8) program do the real work.)
consolehelper requires that a PAM configuration for every managed program exist. So to make /sbin/foo or /usr/sbin/foo managed, you need
to create a link from /usr/bin/foo to /usr/bin/consolehelper and create the file /etc/pam.d/foo, normally using the pam_console(8) PAM mod-
ule.
OPTIONS
This program has no command line options of its own; it passes all command line options on to the program it is calling.
SEE ALSO
userhelper(8)
AUTHOR
Michael K. Johnson <johnsonm@redhat.com>
Red Hat Software 18 March 1999 CONSOLEHELPER(8)