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Post by owl » Thu Oct 12, pm. Post by desertcat » Fri Oct 13, am. Post by owl » Fri Oct 13, pm. Post by jimbux » Wed Oct 18, pm.

Post by etuckram » Thu Oct 19, pm. Privacy Terms. Quick links. I made a bunch of mistakes mostly fueled by ignorance, anyway as a possible help to others out there stumbling around in the dark, perhaps my notes here will help flip on the light-switch and make this process easier for someone else. Since Centos7. Prior to this I had used my CentOS install disk’s recovery mode to give me a shell where I could use “gdisk” to make the 1Tb disk use a gpt partition table as opposed to DOS.

It’s possible if you start with a DOS partition table that the Windows 10 installer will flip it for you, but I had already in my many failed trials apparently tried to install non-UEFI Windows 10 onto a gpt partition tabled disk and it simply refused to deal with it I think I did so many variations that it’s hard to recall all the road blocks.

I just re-installed the OSs and they start fine so far. Like you suggested, I did have to disable “quickboot” so I could see which button I need to press to get the “boot menu” up. In my case is F9, and from there I can choose which OS to boot from. When the PC started, the grub menu was popping up and from there I could choose which OS to boot from. I was expecting the same behaviour this time with the EFI boot.

Here you’ll learn about:. Without any further ado, let’s grab a mug of coffee or tea or at least water and jump right into the process. Before I jump into the core of the tutorial, I want to clarify a few things. To make this entire article approachable, I’m making following assumptions about your system:. There are multiple tools that can help you to create a bootable Linux USB drive. Among all these tools, my favorites are:. Both of these tools are open-source, free to use, and available on pretty much all major platforms.

For this article, I’ll go with Fedora Media Writer simply because there are not a lot of tutorials talking about it and because I use it personally. Once you’ve downloaded the program, install it on your system and fire it up.

This is how it looks. As you can see, you’ve got the option to download the latest Fedora ISOs as well as an option to pick a custom image file from your drives. Unless you’re planning on installing Fedora spoiler! In this article, I’ll use Ubuntu because it’s more popular among newcomers. But the things you’ll learn here can be applied to any other Linux distribution. Go ahead and download the ISO for Ubuntu from their download page.

Ubuntu Connect your USB drive and the button should turn bright red. Depending on your machine’s transfer rate, this process may take a few minutes. Once it’s done, disconnect the USB drive and set it aside.

You’ll need it soon. Again, it’s not uncommon to find people who have failed to boot from a Linux USB drive. This can happen if you haven’t configured your computer properly. Make sure Control Panel is either on “Small icons” or “Large icons” mode and not on the “Category mode”. Now go to “Power Options” and from the left side-bar, click on “Choose what the power buttons do”. Click on the Change settings that are currently unavailable link and uncheck the “Turn on fast startup recommended ” option and hit “Save changes”.

According to Walter Glenn’s article ,. I know this sounds like a nice to have feature, but the problem is, if you keep fast startup enabled in a dual boot system, Linux will be unable to use any of the drives shared between the two operating systems because they’re hibernated and held by Windows.

Next, boot into your motherboard’s UEFI configuration screen. Depending on your motherboard or laptop brand, the key can change but in most cases pressing the “Del” key should get you in. Save the updated settings and boot back to Windows.

Now it’s time to prepare some disk space for Linux to fit into. Now it’s time to make some room for the new OS. Let me explain what we’re going to do. There is a utility built into Windows called “Disk Management” that’s useful when you want to mess around with your partitions.

You can use this to squeeze out some space out of your existing partitions. To do so, open Disk Management by searching for it in the start menu. Keep in mind that it may pop up as “Create and format hard disk partitions” instead of Disk Management. Fire it up and have a good look at its user interface:. This screenshot is from one of my machines that doesn’t have Linux installed. I’ll use this device as the guinea pig for this article. The user interface is divided into two parts.

The top one is a list of all your partitions and the bottom part has all the physical disks connected to your computer listed vertically. I have both Windows and Linux installed on the second disk. So if you have multiple disks on your machine as well, I would suggest you install the OS on the disk that contains the EFI partition.

On your machine, it may be much smaller. Let’s get back to our guinea pig device. As you can see from the screenshot, the Windows C: partition is almost GB. I’ll cut off GB from this partition. In Linux, the root directory contains all other directories and files on the system. When your RAM gets full, Linux moves the inactive pages from memory to the swap space. Having a swap space is not mandatory but it’s good to have.

There is no hard and fast rule for determining the swap space. Considering I don’t do any memory intensive tasks on this laptop, I will break the rule here. To cut off some space from your desired partition, right click on it from the bottom part and click on “Shrink”. I went ahead and installed CentOS. After reboot, I do not see Windows 10 as an option to boot in the menu.

Looks like Windows wasn’t detected before installation. Boot into your CentOS installation and run these two commands:. If it says “command not found”, replace update-grub with grub-mkconfig. You may have to install os-prober before doing this with. I am not an experienced Linux user. I am simply listing what I did to get this to work for me.

This was mostly trial and error based. I am not recommending this one way or another. There may be proper way to resolve the problem. Varun Narravula’s reply may be more appropriate. Not sure if the last step was necessary.

 
 

 

4 Free Boot Managers – Dual Boot Windows And Linux

 

It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search. I have a Window 10 laptop. I went ahead and installed CentOS. After reboot, I do not see Windows 10 as an option to boot in the menu. Looks like Windows wasn’t detected before installation. Boot into your CentOS installation and run these two commands:. If it says “command not found”, replace update-grub with grub-mkconfig.

You may have to install os-prober before doing this with. I am not an experienced Linux user. I am simply listing what I did to get this to work for me. This was mostly trial and error based. I am not recommending this one way or another. There may be proper way to resolve the problem. Varun Narravula’s reply may be more appropriate. Not sure if the last step was necessary. When I rebooted my machine Windows 10 option was available.

I am not sure if the steps I did related to mounting made any difference. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Start collaborating and sharing organizational knowledge. Create a free Team Why Teams? Learn more. Asked 2 years, 6 months ago. Modified 2 years, 6 months ago. Viewed 1k times.

Prior to this I had used my CentOS install disk’s recovery mode to give me a shell where I could use “gdisk” to make the 1Tb disk use a gpt partition table as opposed to DOS.

It’s possible if you start with a DOS partition table that the Windows 10 installer will flip it for you, but I had already in my many failed trials apparently tried to install non-UEFI Windows 10 onto a gpt partition tabled disk and it simply refused to deal with it I think I did so many variations that it’s hard to recall all the road blocks.

So, proceed with the Windows install – it will take over the whole disk. Once it’s all installed free up some space with “Shrink” via the disk management tools lots of help to do this online. Once this is done, reboot, and with the same proceedure, launch your CentOS 7. The following link is really useful especially IF you do the above steps because then the instructions on the web-page will mirror what you see on your screen – otherwise, it’s going to be different, and different is BAD.

I’m fuzzy on the whole Good-Bad thing, OK, Imagine every molecule in your body simultaneously exploding at the speed of light Nothing else should need to be done! I hope that helps – It will probably help me again in a year when I completely forget this entire process. Cheers, James. Last edited by jimbux on Wed Oct 18, pm, edited 2 times in total. I did an update to Windows last night that perhaps stomped on something important this was first time booting since successful installs followed by win-update last night?

I don’t know. Wow – this process is so difficult. Last edited by jimbux on Thu Oct 12, pm, edited 2 times in total. I found something that seems to be on the right track, from Ubuntu forums. Does anyone know the CentoOS equivalent to this? So the next time windows wipes the efi – you can easily restore.

I was still able to dual boot both win10 and CentOS 7. Thx for the suggestions, but I don’t think VM is for me. I use some memory intensive applications and want to minimize the footprint of the OS. Also, my gut tells me that running one OS inside another may have it’s own set of issues that I’d prefer to not layer on top of the usual host of difficulties when faced with debugging something that isn’t working right.

 
 

– How to Dual Boot Any Linux Distribution With Windows – and Get Rid of It When You Need To

 
 

You may have tried running CentOS 7 as a virtual machine or you may have tried it out using a CentOS 7 Live CD and now, you are ready to install it on your hard drive without losing your Windows 10 installation. So, how do you go about having the two bootable operating systems on the same system? This guide will take you through a step-by-step procedure on how to dual boot Windows 10 with CentOS 7.

Before you begin with the installation, perform a flight check and ensure you have the following:. Once the download is done, double click on the installer and the Window below will be shown. To successfully install CentOS 7 or any other Linux OS , you need to set aside a free partition in one of your drives.

As discussed earlier, you need to create a sizable free partition for your CentOS 7 installation from one of the Windows volumes. To create a free partition, we need to shrink one of the volumes. In the pop-up window that appears, specify the amount to shrink the volume in Megabytes. This will be equivalent to the size of the Free partition on which we will install CentOS 7.

In the example below, we have specified Megabytes about 40GB for the free partition. Upon rebooting, the first screen presents you with a list of choices to choose from. In the next page, you will be presented with the following interface with a few parameters that need to be configured.

This is the step where you will select your preferred system installation software. CentOS offers a myriad of Desktop and Server installation environments to choose from. You may also choose to include other add-ons on the right pane. As you can see, we have our free partition which we shrunk to about 40GB. Click on it to select it and click on automatic partitioning. With automatic partitioning , the system automatically partitions the hard drive into the three main partitions as follows:.

If you are still not satisfied with the results, you can use the add , remove or reload the partition scheme to start all over again using the three buttons shown below. A pop up will appear prompting you to select the mount point type and specify the memory capacity. To remove a mount point, click on the mount point first and then hit the minus [-] button. The display below will be displayed. On the far right, flip the networking button ‘ON’.

Kdump is an advanced crash dumping mechanism. Its purpose is to create crash dumps in case of a Kernel crash. This is crucial and allows system administrators to debug the errors and determine the cause of the Linux kernel crash. At this point, you will be required to create both the root password and a regular user in the system. Now, sit back and relax as the installation progresses. At the very end, you will get a notification at the bottom of the progress bar that the installation was successful!

After the systems reboot, you will be required to accept the End User License Agreement. We have finally come to the end of this tutorial. In this guide, you learned how to install CentOS 7 alongside Windows in a dual boot setup. TecMint is the fastest growing and most trusted community site for any kind of Linux Articles, Guides and Books on the web.

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We are thankful for your never ending support. I followed these instructions to the letter as well, but after the CentOS install and reboot, Windows 10 was not listed in the boot menu only CentOS 7.

I tried the fix referenced by Glenn above, but selecting Windows 10 after that fix does absolutely nothing. Hoping someone knows how to be able to boot into Windows after choosing it from the boot list? Never mind. I got it working. HI, thanks for the article. I completed a dual install of centos 6. Follow the above and now always boots to windows not option to boot to centos.

Samuel, sure. I followed all the steps to the latter. The grub bootloader should display all the booting options. Likewise to Legacy. Have a question or suggestion? Please leave a comment to start the discussion. Please keep in mind that all comments are moderated and your email address will NOT be published. Save my name, email, and website in this browser for the next time I comment. Submit Article Request Suggest an Update.

Before proceeding, you need to take note of the following: Dual-booting any Linux distribution not just CentOS 7 will not slow down your Windows system. The two operating systems will be independent of each other and will not impact each other. In a dual boot setup, you can only use one operating system at a time. During the booting process, you will be presented with a list of operating systems to choose from by the boot loader.

This is crucial so that in case of any mishaps or accidental formatting of the hard drive, you will still have your data intact. If you liked this article, then do subscribe to email alerts for Linux tutorials. If you have any questions or doubts? Related Posts.

Thanks Reply. I installed centos 8, I think I lost my windows Reply. I have the same problem. Were you able to fix it? Got something to say? Join the discussion. Cancel reply Have a question or suggestion? Comment Name Email Save my name, email, and website in this browser for the next time I comment.