![]() Use dracut command to recreate initramfs-4.x file. '/initramfs-4.18.86_64.img' notĮxecute chroot command to access our filesystem. ~]# systemctl rebootĪfter reboot the GRUB will display following warning and unable to find initramfs-4.x file. To initiate this recovery scenario, we are removing the initramfs-4.18.86_64.img file. We have successfully recovered CentOS 8 Kernel. The GRUB will be able to load the Kernel now and you will reach at the login prompt after successful startup. If you are using SELinux then create following file to trigger SELinux file relabeling process on next startup. Verify that vmlinuz-4.x file is created by the installer. Reinstall CentOS 8 Kernel using following command. sh-4.4# cd /mnt/install/repo/BaseOS/Packages Restart your system and boot using CentOS 8 ISO/DVD. /grub-core/loader/i386/pc/linux.c:413:you need to load the kernel ![]() On boot, GRUB will display the following warning and unable to load Kernel file. To produce this recovery scenario, we are removing the vmlinuz-4.18.86_64 file. ![]() #Locad iso in ram grub2 how toHow to Recover vmlinuz-4.x (Kernel) in CentOS 8: We have successfully recovered grub.cfg file on CentOS 8. bash-4.4# exitīoot using your Hard Disk and now it will display the GRUB boot menu this time. bash-4.4# touch /.autorelabelįinally exit from chrooted environment and reboot your system. If you are using SELinux, then create following file to trigger SELinux file relabeling process on next startup. If you are working on an UEFI based machine then you have to generate grub.cfg file in /boot/efi/EFI/centos/ directory. bash-4.4# grub2-mkconfig -o /boot/grub2/grub.cfg sh-4.4# chroot /mnt/sysimageīy using grub2-mkconfig command, you can regenerate grub.cfg file. Įxecute chroot command to access your filesystem. It will ask you for mounting your filesystem, choose the option and '1' and press. Select Rescue a CentOS Linux system and press. Restart the system and boot using CentOS 8 ISO/DVD.Īt the CentOS 8 installation menu, select Troubleshooting and press. Minimal BASH-like line editing is supported. The machine will now boot into GRUB prompt because of the missing grub.cfg file. Your system will continue to perform smoothly, unless you restart it and it will then unable to find the grub.cfg file and it will failed to boot CentOS 8 operating system. ![]() To produce this recovery scenario, we are deleting the grub.cfg. How to Recover grub.cfg (GRUB Menu) in CentOS 8:Ĭonnect with using ssh as root user. We have provisioned virtual machine with minimally installed CentOS 8 operating system with following specification.
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