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Recompiling Red Hat Enterprise Linux 4 kernel (2.6 kernel)
I want to restore Red Hat Entrprise Linux 4 system from a backup of another machine. Sine the hardware is different on my restore machine, the system is not coming up. I want to recompile the kernel to match the hardware
You need a boot disk, a floppy usually, to get up and running first. Then you can can patch the kernel manually until you can make it boot from the hard drive. You should have a generic bare.i or bareacpi.i and make the bookdisk. You may also need ramdisks.
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Let me provide you with details of my problem.
I had a RedHatEnterprise Linux 4 Update 2 installed on a slower Pentium III machine for establishing vpn connections to various locations. Now i have a faster Pentium 4 machine and i want to restore the backup of my old PIII machine to P 4 machine. I am using dump and restore . The restore on new p4 machine was successful (all filesystems / /boot /usr /var restored) But i boot the system it hangs at the grub loader with error unable to locate file and the display is all greyed/blurry.
I tried recompiling the kernel (all references for recompiling kerenel say /usr/src/linux but in RHEL4 it is /usr/src/kernels/ kernel-version/) after booting from cd with Linux rescure mode , chroot /mnt/sysimage but it fails . Here is what i did
cd /usr/src/kernels/kernel-ve
make mrproper ( fails)
make && make modules (fails)
Thanks for suggestions. More help is appreciated
I had a RedHatEnterprise Linux 4 Update 2 installed on a slower Pentium III machine for establishing vpn connections to various locations. Now i have a faster Pentium 4 machine and i want to restore the backup of my old PIII machine to P 4 machine. I am using dump and restore . The restore on new p4 machine was successful (all filesystems / /boot /usr /var restored) But i boot the system it hangs at the grub loader with error unable to locate file and the display is all greyed/blurry.
I tried recompiling the kernel (all references for recompiling kerenel say /usr/src/linux but in RHEL4 it is /usr/src/kernels/ kernel-version/) after booting from cd with Linux rescure mode , chroot /mnt/sysimage but it fails . Here is what i did
cd /usr/src/kernels/kernel-ve
make mrproper ( fails)
make && make modules (fails)
Thanks for suggestions. More help is appreciated
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SOLUTION
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While recompiling the kernel, the 'make menuconfig' step helps you to tune the kernel according to hardware etc. The file being modified is .config in the kernel source tree.