Disk Partitioning – MBR vs GPT on. To recover GRUB2 on RHEL7 /CentOS 7 with UEFI. Let’s restore the GRUB2 by re-installing grub2-efi and shim packages.
Steps I have taken to troubleshoot this issue:
Unable to install CentOS 7 as second operating system on the second hard disk drive with existing EFI partition on the first one. For a UEFI installation. May 22, 2015 Want to install only centos 7. Wish to wipe existing inaccessible window 8 partition and replace with centos7.to make. UEFI and Centos7 and install. Centos 7 installation. Needs recovery disc. Need explicit step by step to achieving full centos 7 package insta from a usb and removing windiws completely. Can access the Bios UEFI.
Waited for well over an hour at this black screen, with no change.
Tried the installation with USB, DVD, and via iDrac, all resulted in the same problem.
Noted that in each case activity stops after about 20 seconds e.g. usb activity light stops, dvd stops spinning, iDrac mounted image stops transferring (about 46.6 MB each time)Removed 'quiet' option from the grub entry, this did not result in any output.
I am able to install CentOS 7 if I switch to BIOS mode, so there is no general hardware issue regarding compatibility.
I am able to install Ubuntu 14.04, Proxmox and Arch Linux when the server is in UEFI mode without issue.
Updated all firmware on my R710 to the most current versions.
This same problem occurs with Centos 7.1, Scientific Linux 7.1 and 7.2.
Tried with minimal install and the full dvd iso.
Verified both minimal and full dvd isos have the correct checksums.
Install Centos 7 On Virtualbox
Install Centos On Windows 7
I do not know what to do to further troubleshoot this, overall the problem seems very strange considering no one I have spoken with has had this issue.