Ok, so my in place upgrade crashed at Step 3. I have backups so rather than spend time on troubleshooting the in place upgrade I am doing a clean install.
But, when I try to boot from the USB drive and select any item from the Grub menu I get the following error message:
error: no multiboot header found.
error: you need to load the kernel first.
error: you need to load the kernel first.
This is on a custom built desktop computer with Asus MB, nvidia graphics card, etc. 4.0.4 was running fine on it before. Something about the iso image isn’t right?
what could be going on?
Hey, you have the same problem as me.
My solution:
1.Check the multiboot segment in bootloader for spelling mistakes(for example: multboot).
2.Check the multiboot segment in the linker.ld.
OK,problem solved now.