kernel upgrade doesn't work

[Bernd Prager]

Hi, I'm new to grub. I decided when I'm upgraded to RedHat 7.2 to try 'grub' instead of 'lilo'. When I try to upgrade my kernel now, I did the usual 'make all', 'make bzImage' and then copied vmlinuz and System.map to /boot.   I changed /boot/grub/grub.conf to: default=0 timeout=10 splashimage=(hd0,0)/grub/splash.xpm.gz title Red Hat Linux (2.4.7-10smp)         root (hd0,0)         kernel /vmlinuz-2.4.7-10smp ro root=/dev/hda6         initrd /initrd-2.4.7-10smp.img title Red Hat Linux-new (2.4.18)         root (hd0,0)         kernel /vmlinuz-2.4.18 ro root=/dev/hda6   But booting the new kernel fails with: ---- snip ----------- Boot 'Red Hat Linux-new (2.4.18)' root (hd0,0)   Filesystem type is ext2fs, partition type 0x83 kernel /vmlinuz-2.4.18 ro root=/dev/hda6 Error 13: Invalid or unsupported executable format ---- snip -----------   I was searching the docs and the mailing archive for any hints, but I couldn't find anything useful. Do I miss something? What am I doing wrong? (Fortunately booting the old kernel still works fine.)    Thanks for any help, -- Bernd