After upgrading from CentOS/RHEL 5.9 to 5.10, you may noticed the following entry in the system logs [/var/log/messages] : automount[0000]: lookup_read_master: lookup(nisplus): couldn’t locate nis+ table auto.master Well, it appear there was a change of syntax since the previous version of “autofs” utility. I was able to get rid of this error removing the ”… Read More »
Got this error while your deployed Windows Server 2008 start up for the first time doing SysPrep? The computer restarted unexpectedly or encountered an unexpected error. Windows installation cannot proceed. To install Windows, click “OK” to restart the computer, and then restart the installation. Well, you can get rid of this by editing the registry and… Read More »
Use the following script if you want to reallocate the content of your swap area back to RAM. Before doing this, make sure you have enough free memory. #!/bin/bash echo -e “\nOutput of free before:” free swapoff -a ; swapon -a echo -e “\nOutput of free after:” free echo “”
Did you noticed the following message booting up CentOS/RHEL 5.9? You need to implement a remote task_setrlimit in your security module and call it directly from this functionWARNING: at security/security.c:51 security_ops_task_setrlimit() Call Trace: [<ffffffff8012f117>] security_ops_task_setrlimit+0x87/0x96 [<ffffffff8009dcd6>] do_prlimit+0xd7/0x1d2 [<ffffffff8009ee1f>] sys_setrlimit+0x36/0x43 [<ffffffff8005d29e>] tracesys+0xd5/0xdf According to RedHat, this message is harmless and can be safely ignored unless you’re defining… Read More »
Since CentOS6/RHEL6, boot messages are hidden behind a splash screen that display a progress bar. To show the boot progression, simply press the “arrow up“ key. To make the change permanently, edit the Grub configuration file : /boot/grub/grub.conf And remove the following : rhgb quiet
Windows 7 or Server 2008 might display a blue screen of death booting your system such as : PROCESS1_INITIALIZATION_FAILED *** STOP: 0x0000006B This can be a filesystem issue or hardware related such as ; bad disks, bad or incorrect cables. The first steps for resolution would be : – Boot in recovery and open the Command tool… Read More »
Got “READ FPDMA QUEUED” errors from “dmesg” output on your Linux machine? ata2.00: status: { DRDY ERR } ata2.00: error: { UNC } ata2.00: failed command: READ FPDMA QUEUED ata2.00: cmd 60/28:70:28:19:89/00:00:6c:01:00/40 tag 14 ncq 20480 in res 41/40:00:00:00:00/00:00:00:00:00/00 Emask 0x9 (media error) This probably mean you have controller driver issue. Some controllers have known… Read More »
Your SSH connection get cut or timeout while you were either updating or installing an application with apt-get? Don’t worry, these easy steps will get you out of trouble! 1. Try to run your command again : root@server:~# apt-get install <app_name> E: Could not get lock /var/lib/dpkg/lock – open (11: Resource temporarily unavailable) E: Unable… Read More »
Getting this error message while trying to bring up your newly configured bridge interface on RHEL/CentOS Linux? You are missing “bridge-utils” package. Simply install it as followed and bring up the interface again : yum install bridge-utils NOTE : Click here to see our HowTO create a bridge interface article
Here is how to turn on user automatic logon for Windows 7 and Windows Server 2008. Windows 7 : Both options are available (using the GUI or directly modifying the registry as for Windows Server 2008). – Start > Run – Type “control userpasswords2” – Then click OK [x] > [ ] Uncheck the box… Read More »