Difference: InstallingCentOS7 (10 vs. 11)

Revision 1121 Jul 2015 - IvoVanGeel

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Installing CentOS 7

Please note: This instruction was created for my personal use. Feel free to follow it, but I am not responsible for any problems or data loss!

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< Download the network install CD, which can be found at: http://ftp.tudelft.nl/centos.org/7/isos/x86_64/CentOS-7.0-1406-x86_64-NetInstall.iso. Check the MD5 sum by running md5sum on CentOS-7.0-1406-x86_64-NetInstall.iso and compare the result to the MD5 sums at: http://ftp.tudelft.nl/centos.org/7/isos/x86_64/md5sum.txt.

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> Download the network install CD, which can be found at: http://ftp.tudelft.nl/centos.org/7/isos/x86_64/CentOS-7-x86_64-NetInstall-1503.iso. Check the MD5 sum by running md5sum on CentOS-7-x86_64-NetInstall-1503.iso and compare the result to the MD5 sums at: http://ftp.tudelft.nl/centos.org/7/isos/x86_64/md5sum.txt.

Boot from the network install CD. Make sure you have at least 768MB of memory available, or you will not be able to create a custom harddisk layout.

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< Select Install CentOS 7 at the CD boot screen. Set the installation language to English; Keyboard: English (United States). Set the Date&Time options. Click the Installation Source setting, select Network and enter the correct URL: http://ftp.tudelft.nl/centos.org/7/os/x86_64/

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> Select Install CentOS 7 at the CD boot screen. Set the installation language to English; Keyboard: English (United States). Set the Date&Time options. Click the Installation Source setting, select Network and enter the correct URL: http://ftp.tudelft.nl/centos.org/7/os/x86_64/

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Add the EPEL repository by running: rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
Add the noatime option to all ext3/ext4 filesystem options in /etc/fstab

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Edit /etc/default/grub and remove the rhgb and quiet options from GRUB_CMDLINE_LINUX

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Edit /etc/default/grub and remove the rhgb and quiet options from GRUB_CMDLINE_LINUX. Replace these options with: nomodeset vga=normal

Create a new grub2 config file using: grub2-mkconfig > /boot/grub2/grub.cfg
Edit /etc/rc.d/rc.local and add the following line: TERM=linux /usr/bin/setterm -blank 0 This will prevent the screen from going black, which may be helpful in case of a kernel problem.
The file /etc/rc.d/rc.local needs to be executable: chmod a+x /etc/rc.d/rc.local

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