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Lost UEFI NVRAM Settings - MOBO SWAP - Dual -28/Win7

asked 2018-06-18 07:46:52 -0500

x27qb8 gravatar image

How do I recover or re-create NVRAM settings, so I can boot Fedora? I had to replace a failing mobo. Now I can only boot into Windows - dual boot.

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answered 2018-06-18 10:11:02 -0500

cmurf gravatar image

First boot Fedora however possible, mount rootfs if it isn't already (i.e. if you have to boot from a USB stick):

grep efibootmgr /var/log/anaconda/program.log

This will show you the efibootmgr command you need to use to restore NVRAM boot entry for Fedora. The backslashes themselves need backslash as an escape character. e.g. if the path is \EFI\fedora\shim.efi you need to type this as \EFI\fedora\shim.efi

You should be able to boot Fedora using either the firmware's boot manager, or from Windows 10 using shift key when clicking on restart to bring up an additional menu with Troubleshooting and Advanced options, somewhere in those menus will be a Fedora option; it'll act as a one time Fedora boot choice until you make it permanent with the efibootmgr command from the installer log.

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Asked: 2018-06-18 07:46:52 -0500

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Last updated: Jun 18 '18