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Why is the GRUB configuration not getting updated after updating kernel?
Can not see entries for latest kernel version in grub, even though kernel was installed without error. After updating a server, the old kernel is still booted instead of the new one. How to rebuild grub2.cfg boot file?
Where is the GRUB configuration file in RedHat?
If that’s not the case, then the GRUB configuration is located in the /boot/efi/EFI/redhat/ directory. Anyway, the solution can be to reinstall GRUB, and then update the config : Please report back if it solved the problem I wish you good luck ! 🙂 In RHEL7.x release the grub configuration file is ‘grub.cfg’, in older release it is ‘grub.conf’.
Where to find GRUB2 file in yum update?
Also, you may post the output of the following for further help: By default, there is ‘grub2’ folder under /boot, if this is an EFI based system then check if there is ‘efi/EFI/redhat’ folder under which you could see ‘grub.cfg’ file.
Why is my system stuck in Grub rescue?
After making some mistakes on my server the system got stuck in grub rescue. After running the following commands in grub rescue grub2 prompts up. In grub2 I run ls (hd0,1)/.
Where do I find the kernel in Grub?
On a bootable usb, the kernel and initrd files are in the /casper directory as opposed to an installed system where they are in the /boot directory. If your usb is seen as sda on boot running the following should show the kernel and initrd. Is the usb using Grub to boot or syslinux/isolinux? Depends upon how you created the usb.
How to check the version of the Linux kernel?
The uname command displays several system information including, the Linux kernel architecture, name version, and release. To find out what version of the Linux kernel is running on your system, type the following command: uname -srm. Copy.
How to know the version of Grub in Ubuntu?
All querying of installed packages, as described in the other answers, miss an important point: to probe your bootloader, look at the bootloader! In other words, you can install whatever packages you like in whatever OS or distro you like, but none of this has anything to do with the bootloader you’ll use when you reboot.
How to install kernel config headers in include directory?
Installing the kernel config headers to the system include directory is not part of the procedure. Rather you invoke make from inside the kernel source tree and point it to the module’s source tree with the M= parameter.
Why does yum update kernel not boot into new kernel?
Also, the file ‘/etc/grub.cfg’ is a symbolic link to ‘/boot/grub2/grub.cfg’ file (in case of EFI based systems /boot/efi/EFI/redhat/grub.cfg). Looking at your problem description I presume that system boots into older kernel without any issues. If this is the case then it could be due to the reason that ‘/etc/grub.cfg’ symbolic link file not there.
Why is autoconf.h not copied automatically to its…?
After downloading the sources, I did a make and got an error: ERROR: Kernel configuration is invalid. include/generated/autoconf.h or include/config/auto.conf are missing. Run ‘make oldconfig && make prepare’ on kernel src to fix it.