Boot CentOS 5/6 as Single User Mode Rumi, August 3, 2014 Step 1 – Boot CentOS into Single User Mode – Hit Any Key Boot CentOS in Single User Mode – Press Any Key to Edit Boot Options Power up the machine and when you see this screen, hit the space bar or any other key before the timeout. Step 2 – Boot CentOS into Single User Mode – Choose Boot Kernel Boot CentOS in Single User Mode – Select Kernel Next up, we will be given the list of kernels that we can boot from. Choose the one that you typically boot to. Typically, it is the latest one. We use our up and down arrows to get to the proper kernel and then hit the “e” key to signify that we wish to edit it. Step 3 – Boot CentOS into Single User Mode – Edit Boot Options Boot CentOS in Single User Mode – Edit Kernel Boot Options Now, we are editing the kernel’s boot options. Choose the line that begins with “kernel” as shown in the image to the right. Then hit the “e” key again. Step 4 – Boot CentOS into Single User Mode – Add Single User Mode Option Boot CentOS in Single User Mode – Add “Single” to the Kernel Boot Options Type the word “single” at the end of the options. Then hit the “Enter” key. It will now boot your CentOS operating system into single user mode and you can resolve whatever issues you have that caused you to need to boot CentOS into single user mode in the first place. Related Administrations Configurations (Linux) CentOS
Two Default Gateways on One System May 21, 2015 Problem Description You have built two or more network cards into one Linux system and each of these cards has its own default gateway. By default, you can only have one default gateway on a system. The case described would lead to asynchronous routing, whereby the router would reject the… Read More
Installing Smokeping on Ubuntu 14.04 LTS September 21, 2018 Installing Smokeping on Ubuntu used to be a total breeze. Since 14.04 however, it’s been a bit of a mission. This guide assumes a fresh out of the box Ubuntu install. I’m using the 64bit Server variety, but this should work on any 14.04 system. UPDATE – It also works… Read More
Zextras Modern Theme for Zimbra web interface September 12, 2023 First, you must register to get a download link: zextras-theme-zimbra-interface. Then, you will receive instructions for installing the new Zextras theme For Ubuntu users Download the package from your Zimbra server using the following command: wget https://link-download-from-zextras/zextras-theme-ubuntu.tgz Note: Change link-download-from-zextras with the link received in the email Extract the package you… Read More