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Where does GRUB load the kernel from?
On SLES, by default, Grub files reside in /boot/grub/ directory. But, we need to know what disk device and partition. We can use “find” and Grub will tell us.
How does Linux grub work?
GRUB stands for GRand Unified Bootloader. Its function is to take over from BIOS at boot time, load itself, load the Linux kernel into memory, and then turn over execution to the kernel. GRUB supports multiple Linux kernels and allows the user to select between them at boot time using a menu.
What to do if GRUB2 cant find kernel?
After running the following commands in grub rescue grub2 prompts up. In grub2 I run ls (hd0,1)/. Then I run linux /vmlinuz or linux (hd0,1)/vmlinuz but both result in “file not found”.
How to load Linux kernel manually using GRUB on SLES?
If you still get the Grub prompt, we can load the kernel manually. First we need to find out where the kernel files are located. Again, SLES puts the kernel files in the /boot/ directory as with most distros. Then we need to set “root” to its proper disk device, tell Grub which kernel to use and then which initrd to use
How to Boot GNU / Linux from GRUB command?
Load the kernel and the module, like this: grub> kernel /boot/gnumach root=hd0s1grub> module /boot/serverboot Run the command @command{boot} (see section boot). GNU/Linux It is relatively easy to boot GNU/Linux from GRUB, because it somewhat resembles to boot a Multiboot-compliant OS. Set GRUB’s root device to the same drive as GNU/Linux’s.
Where is the kernel image stored in Grub?
Set GRUB’s root device to the drive where the OS images are stored by the command @command{root} (see section root). Load the kernel image by the command @command{kernel} (see section kernel). If you need modules, load them with the command @command{module} (see section module) or @command{modulenounzip} (see section modulenounzip).