On 05/18/2016 07:35 PM, Alfred von Campe wrote: > >> On May 13, 2016, at 16:27, I wrote: >> >> Is there any known incompatibility with the latest 32-bit (i386) CentOS 6 >> and the latest Lenovo x3650 M5 servers? I’ve been running i386 CentOS 6.X >> on 3 year old x3650 M4 servers without any issues. Our development >> environment has not been ported to 64-bit (x86_64) yet, so we are stuck >> using i386 for another few months. When I try to boot from the netinstall >> ISO image I just get a “Boot Failed” message. Has anyone had similar issues, >> and more importantly, figured out a way to workaround it? > > I’ll answer my own question now that I’ve figured it out in case anyone else > is in the same boat. After the i386 CentOS 6 net install ISO failed to boot, > I tried the LiveCD and minimal ISOs which failed in the same way. Then I > tried various x86_64 ISO images to no avail. The only ISO image that I was > able to boot from was the latest Ubuntu 16.04 LTS release. But I really need > i386 CentOS. I was able to install it by clicking on a Legacy checkbox in > the BIOS, which brought up a different list of boot devices and I was finally > successful in booting from the ISO image. I then had to finagle the BIOS to > always boot in legacy mode so that it would recognize the i386 CentOS boot > partition on each powerup.
Yes, CentOS-6 32bit can not boot UEFI or secureboot at all, and needs 'Legacy Boot' enabled. The CentOS-6 x86_64 can boot 'UEFI with secureboot off', but not secureboot. CentOS-7 (x86_64) can install on secureboot or 'UEFI w/secureboot off', or legacy. CentOS-7 (Altarch i386) can install on 'UEFI w/secureboot off' or legacy, but no secureboot. Thanks, Johnny Hughes
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