WTMP file cleared after upgrade Post: 302171351

8 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

manage the wtmp file

Here's a usefull perl script to trim the wtmp file, in case it got too big, which happens sometimes, or got curropted (which also happens often). You could learn from here how to parse the wtmp file... but of course for just reading its content always simply use "last" like Neo said.... ...

2. News, Links, Events and Announcements

Jon Johansen cleared in landmark DVD case

http://www.cnn.com/2003/TECH/01/07/dvd.johansen/index.html

3. Programming

Displaying fields in wtmp file?

Anyone have any idea on how to display the fields for each record stored in the wtmp file using C? Am I correct in thinking that the info stored in wtmp is in binary and that utmpx will be of some help? Being a beginner, I can come up with bits and pieces of what I might need in order to do the...

4. Forum Support Area for Unregistered Users & Account Problems

hotmail cleared account before activation

Hotmail cleared my email account before I had a chance to activate it. Can a admin re-send the activation email or activate my username? thanks

5. AIX

wtmp file

Hello everyone I have a problem with the file wtmp that is on /var/adm This file was not on this directory (adm). I try creating a new file with the correct rights (644) and owner (adm:adm) but It doesnt work. If I type the last command i get this last ora10g ...

6. AIX

Impacts of emptying /var/adm/wtmp file ?

In our operating procedures, if a workstation has a space problem in the /var filesystem, one of the most frequent case we were told is the size of the /var/adm/wtmp file. Someone once told me it is dangerous to do this. Is it ? I cannot say for certain that whomever wrote that procedure is...

7. Solaris

Unable to remove links of Cleared metas

Hi, have few meta devices which were cleared some year ago but still appear in /dev/md/rdsk. If I create a same meta device again, it shows old timestamp of 2009yr I tried devfsadm -C to clear unlinked links but of no use. What am I missing ?

8. AIX

wtmp file - is there a patch to export the data another file each day?

sorry for being a noob, i am trying to find which user accessed the server at what time and there ip address at first i used who command but the output didn't contain the ip address then i used the last command which provided me with the ip of the users but when i searched i searched and found that...

LEARN ABOUT CENTOS

redhat-upgrade-tool-cli

REDHAT-UPGRADE-TOOL(8)					  redhat-upgrade-tool User Manual				    REDHAT-UPGRADE-TOOL(8)

NAME

       redhat-upgrade-tool - Red Hat Upgrade tool

SYNOPSIS

       redhat-upgrade-tool [OPTIONS] SOURCE

DESCRIPTION

       redhat-upgrade-tool is the Red Hat Upgrade tool.

       The redhat-upgrade-tool client runs on the system to be upgraded. It determines what packages are needed for upgrade and gathers them from
       the source(s) given. It also fetches and sets up the boot images needed to run the upgrade and sets up the system to perform the upgrade at
       next boot.

       The actual upgrade takes place when the system is rebooted, using the boot images set up by redhat-upgrade-tool. The upgrade initrd starts
       the existing system (mostly) as normal, lets it mount all the local filesystems, then starts the upgrade.

       When the upgrade finishes, it reboots the system into the newly-upgraded OS.

OPTIONS

   Optional arguments
       -h, --help
	   Show a help message and exit.

       -v, --verbose
	   Print more info.

       -d, --debug
	   Print lots of debugging info.

       --debuglog DEBUGLOG
	   Write debugging output to the given file. Defaults to /var/log/redhat-upgrade-tool.log.

       --reboot
	   Automatically reboot to start the upgrade when ready.

   SOURCE
       These options tell redhat-upgrade-tool where to look for the packages and boot images needed to run the upgrade. At least one of these
       options is required.

       --device [DEV]
	   Device or mountpoint of mounted install media. If DEV is omitted, redhat-upgrade-tool will scan all currently-mounted removable devices
	   (USB disks, optical media, etc.)

       --iso ISO
	   Installation image file.

       --network VERSION
	   Online repos matching VERSION (a number or "rawhide")

       Multiple sources may be used, if desired.

   Additional options for --network
       --enablerepo REPOID
	   Enable one or more repos (wildcards allowed).

       --disablerepo REPOID
	   Disable one or more repos (wildcards allowed).

       --addrepo REPOID=[@]URL
	   Add the repo at URL. Prefix URL with @ to indicate that the URL is a mirrorlist.

       --instrepo REPOID
	   Get upgrader boot images from the repo named REPOID. The repo must contain a valid .treeinfo file which points to the location of
	   usable kernel and upgrade images.

   Cleanup commands
       --resetbootloader
	   Remove any modifications made to bootloader configuration.

       --clean
	   Clean up everything written by redhat-upgrade-tool.

EXAMPLES

       redhat-upgrade-tool --network 7.0 --instrepo <repo URL>

       Upgrade to RHEL 7.0 by downloading all needed packages and data from the specified repository.

       redhat-upgrade-tool --device --network 7.0

       Upgrade to RHEL 7.0 using install media mounted somewhere on the system, fetching updates from the network if needed.

EXIT STATUS

       0
	   Success.

       1
	   Cancelled by user, failure writing files to disk, or other unknown error

       2
	   Failed to download/copy files from the given SOURCE

       3
	   RPM upgrade transaction test failed

BUGS

       The --iso image must be on a filesystem listed in /etc/fstab.

AUTHORS

       Will Woods <wwoods@redhat.com>

redhat-upgrade-tool						    11/08/2013						    REDHAT-UPGRADE-TOOL(8)