GQ20N.png' alt='How Do I Install Grub 2' title='How Do I Install Grub 2' />Grub 2 typically gets overridden when you install Windows or another Operating System. To make Ubuntu control the boot process, you need Reinstall RepairRestore. Save settings ctrlo, ctrlx and do restart ssh server sudo service ssh restart 7. CopyPaste bellow one my one into your terminal 1 sed i e sGRUBCMDLINE. I recently bought a shiny new Lenovo Yoga 2 Pro and I want to dual boot it with Ubuntu for studying purposes. Its builtin OS is Windows 8. GB SSD. Things to Do After Minimal RHELCent. OS 7 Installation. Cent. OS is a Industry Standard Linux Distribution which is a derivative of Red. Screenshot-21GBHardDisk-dev-mapper-nvidia_abjcfaad3DiskUtility-1.png' alt='How Do I Install Grub 2' title='How Do I Install Grub 2' />Hat Enterprise Linux. You may start using the OS as soon as you install it, but to make the most out of your system you need to perform a few updates, install a few packages, configure certain services and application. This article aims at 3. Things to Do After Installing RHELCent. This page is part of my Managing EFI Boot Loaders for Linux document. If a Web search has brought you to this page, you may want to start at the beginning. Brief This detailed guide shows you how to dual boot Ubuntu with Windows legacy BIOS systems. If you are not sure, read this to know if you have BIOS or UEFI system. EFI Boot Fix. When the installer completes, dont restart just yet We still need to do one more thing so that well be able to use GRUB. Run the following. OS 7. The post is written keeping in mind you have installed RHELCent. OS Minimal Install which is preferred in Enterprise and production environment, if not you can follow below guide that will show you minimal installations of both. Installation of Cent. OS 7 Minimal. Installation of RHEL 7 Minimal. The following are the list of important things, which weve covered in this guide based on industry standard requirements. We hoping that, these things will be very helpful in setting up your server. Register and Enable Red Hat Subscription. After minimal RHEL 7 installation, its time to register and enable your system to Red Hat Subscription repositories and perform a full system update. This is valid only if you have a valid Red. Hat Subscription. You need to register your in order to enable official Red. Hat System repositories and update the OS from time to time. We have already covered a detailed instructions on how to register and active Red. Hat subscription at the below guide. Register and Enable Red Hat Subscription Repositories in RHEL 7. Note This step is only for Red. Hat Enterprise Linux having a valid subscription. If you are running a Cent. OS server immediately move to further steps. Configure Network with Static IP Address. The first thing you need to do is to configure Static IP address, Route and DNS to your Cent. OS Server. We will be using ip command the replacement of ifconfig command. However, ifconfig command is still available for most of the Linux distributions and can be installed from default repository. Provides ifconfig utility. But as I said we will be using ip command to configure static IP address. So, make sure you first check the current IP address. Now open and edit file etcsysconfignetwork scriptsifcfg enp. Here, Im using Vi editor and make sure you must be root user to make changes vi etcsysconfignetwork scriptsifcfg enp. Now we will be editing four fields in the file. Note the below four fields and leave everything else untouched. Also leave double quotes as it is and enter your data in between. IPADDR Enter your static IP here. GATEWAY Enter your Default Gateway. DNS1 Your Domain Name System 1. DNS2 Your Domain Name System 2. After making the changes ifcfg enp. Notice your IP, GATEWAY and DNS will vary, please confirm it with your ISP. Save and Exit. Network Details. Restart service network and check the IP is correct or not, that was assigned. If everything is ok, Ping to see network status service network restart. Restart Network Service. After restarting network, make sure to check the IP address and network status ip addr show. Verify IP Address. Check Network Status. Set Hostname of Server. The next thing to do is to change the HOSTNAME of the Cent. OS sever. Check the currently assigned HOSTNAME. HOSTNAME. Check System Hostname. To set new HOSTNAME we need to edit etchostsname and replace old hostname with the desired one. Set System Hostname. After setting hostname, make sure to confirm hostname by logout and login again. After login check new hostname. HOSTNAME. Confirm New Hostname. Alternatively you may use command hostname command to view your current hotsname. Update or Upgrade Cent. OS Minimal Install. This will not install any new packages other than updating and installing the latest version of installed packages and security updates. Moreover Update and Upgrade are pretty same except the fact that Upgrade Update enable obsoletes processing during updates. Update Minimal Cent. OS Server. Important You can also run the below command which will not prompt for the packages update and you do not need to type y for accepting the changes. However it is always a good idea to review the changes which is going to take place on the sever specially in production. Hence using the below command may automate the update and upgrade for you but it is not recommended. Install Command Line Web Browser. How To Install Convertible Top Snapshot. In most cases, specially in production environment, we usually install Cent. OS as command line with no GUI, in this situation we must have a commandline browsing tool to check websites via terminal. For this, we going to install a most famous tool called links. Links Commandline Web Browsing. For usage and examples to browse web sites u links tool, read our article Command Line Web Browsing with Links Tool. Install Apache HTTP Server. No matter for what purpose you will be using the server, in most of the cases you need a HTTP server to run websites, multimedia, client side script and many other things. Install Apache Server. If you would like to change default port 8. Apache HTTP Server to any other port. You need to edit the configuration file etchttpdconfhttpd. LISTEN 8. 0. Change port number 8. Change Apache Port. Add the port you just opened for Apache through firewall and then reload firewall. Allow service http through firewall Permanent. Allow port 3. 22. Permanent. firewall cmd permanent add port3. Reload firewall. firewall cmd reload. After making all above things, now its time to restart Apache HTTP server, so that the new port number is taken into effect. Now add the Apache service to system wide to start automatically when system boots. Now verify the Apache HTTP Server by using links command line tool as shown in the below screen. Verify Apache Status. Managing EFI Boot Loaders for Linux Using GRUB Legacy. Originally written 92. This Web page is provided free of charge and with no annoying. I did take time to prepare it, and Web hosting does. If you find this Web page useful, please consider making a. Thanks Donate 1. Donate 2. Donate 5. Donate 1. Donate another value. This page is part of my Managing EFI Boot Loaders. Linux document. If a Web search has brought you to this page, you. The GRand Unified Bootloader. GRUB is actually two boot loaders. This page describes GRUB Legacy. The next page, Using GRUB 2, describes the. The official version of GRUB Legacy. EFI booting however, through version 1. Fedora used a. greatly modified version that includes EFI support. This page therefore. GRUB Legacy. When to Use GRUB Legacy. GRUB Legacy is capable of both booting a Linux kernel and chain loading. EFI boot loader. Thus, if you want to use GRUB Legacy, you may be. As a general rule, GRUB Legacy proved reliable to me however, I have not used it since 2. I have encountered significant system to system. Specifically Ive managed to get GRUB Legacy to successfully boot Linux on all of the. I owned in 2. 01. In this respect its better than ELILO, which. Mac Mini, but GRUB Legacy has other. On some installations, GRUB Legacy produced a completely blank display. Linux. On some installations, GRUB Legacy crashed. This was a particular. Gigabyte motherboard that uses Hybrid EFI. On some installations, GRUB Legacy produced nothing but a. Because Fedoras version of GRUB Legacy is so heavily modified. I provide links to. RPMs and tarballs below to help overcome this problem. Fedora has. moved from its patched GRUB Legacy to GRUB 2 with its version 1. GRUB is unlikely, which in turn means that. For instance, to the best of my knowledge. GRUB Legacy doesnt support Secure Boot, and the binary versions are. GNU EFI which prevents them from being. Secure Boot system. In theory, you should be able to. GRUB Legacy from source yourself, sign the binary, and use it to. Linux kernels. Ive not tried to do this myself. I cant promise it would work. See my. page on Secure Boot for more on this topic. Overall, in 2. 01. GRUB Legacy is probably best left unused, and this page should be considered mainly of historical interest. Its main advantage at this point is that its a simple boot loader that can both chainload to other EFI boot programs and load a Linux kernel from a supported Linux native filesystem. Neither ELILO nor SYSLINUX can do these things and although GRUB 2 can do them, its much more complex to set up. On the other hand, the program is now abandoned and so is no longer under active development. It does not support Secure Boot. I have not tested the support scripts noted below for actively maintaining its configuration file on modern distributions, so you may need to do that task yourself. Installing GRUB Legacy. GRUB Legacy installation works just as described in EFI Boot Loader Installation. If youre using. a Fedora 1. GRUB Legacy should have been automatically. Fedora 1. 8. to GRUB 2 for EFI mode booting. If youre not using a Fedora system, here. Fedora 1. 7. grub 0. The. source code RPM for Fedora 1. GRUB Legacy. grub efi 0. The. x. 86 6. 4 binary RPM for Fedora 1. EFI version of GRUB. Legacy. Usable on x. UEFI systems and modern Macintoshes. The. x. 86 binary RPM for Fedora 1. EFI version of GRUB. Legacy. Usable on early Intel based Macs with EFI firmware. An. x. 86 6. 4 binary tarball containing Fedoras patched version of. GRUB Legacy. I created this tarball by passing the binary RPM through. Debians alien program, so it contains all the same files as. Fedoras original RPM, but you can unpack it and install it on any. When unpacked, this tarball creates boot. I. recommend you unpack it in a scratch directory. An. x. 86 binary tarball containing Fedoras patched version of. GRUB Legacy. This should work like the x. Intel based Macs with 3. EFIs. Fedora 1. 7s grub package installs only the EFI version of GRUB. Legacy. This package places the grub. EFIredhat directory. Thus, if you installed this. ESP unmounted, you should copy this file out before you. ESP at bootefi, then copy it back to its proper. GRUB Legacy normally installs a grub. ESP and. reads its configuration file, grub. The configuration files name should be the. GRUB Legacy reads the Linux kernel, the initial RAM disk, and other. Linuxs boot directory. This directory. must be on a filesystem that GRUB Legacy supports, such as ext. Reiser. FS, XFS, JFS, Btrfs, or FAT. If your computer uses a Linux. RAID or Logical Volume Manager LVM setup, you must place the. RAID or LVM. setup. Configuring GRUB Legacy. GRUB Legacys configuration file, grub. Fedoras modified. This files format is nearly. EFI systems as on BIOS systems, so if youre used to. GRUB Legacy on BIOS systems, you should have no problems on EFI. An exception is how you chainload another boot loader. An. Fedora 3. 5. 4 1. Fedora 3. 5. 1 1. Windows 7. root hd. EFIMicrosoftBootbootmgfw. You can cut and paste this example and modify it for your own needs. Some key points when you make your modifications include the following The default line sets the default boot stanza, which will be. The stanzas are numbered starting from 0. The hiddenmenu line may be uncommented by default. If present. it hides the boot menu unless the user presses a key. The blocks of lines beginning with title are the kernel. The root line identifies GRUBs. Linuxs root filesystem. In this example, hd. GRUBs root. filesystem, which is in fact a separate boot partition. If. you dont split off boot, the kernel and. GRUB Legacy can chainload to another EFI boot loader by using the. Windows 7 stanza. When you do this, youll normally set root to the ESP. This is similar to chainloading to Windows or some other OS using GRUB. Legacy on a BIOS based computer, but with the important difference that. OSs boot loader on the ESP, not to boot. OSs boot. Using GRUB Legacy. When GRUB Legacy is launched, youll see a menu of boot options, each. Select one and. the associated kernel or EFI boot loader should launch. An example is shown. Maintaining GRUB Legacy. Distributions that ship with GRUB Legacy generally include scripts that. Thus, you. shouldnt have to do much to keep GRUB Legacy working in normal operation. Linux only installation and if you use the version of. GRUB Legacy that shipped with your distribution. Ive not tested these scripts with modern distributions, though. If you multi boot several. OSes, you may need to re adjust your configuration whenever you. Likewise if you installed Fedoras GRUB Legacy on another distribution. EFIgrub or wherever you install the grub. You may also need to add, delete, or modify stanzas as you make. OSes. Go on to Using GRUB 2Return to Managing EFI Boot Loaders for Linux main page. If you have problems with or comments about this web page, please. Thanks. Return to my main Web page.