Re: [CentOS] Installing 32-bit CentOS 6 on a new Lenovo System x3650 M5 server?

[Johnny Hughes]

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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Re: [CentOS] Installing 32-bit CentOS 6 on a new Lenovo System x3650 M5 server?

[Alfred von Campe]

> 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.

Alfred

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Re: [CentOS] Installing 32-bit CentOS 6 on a new Lenovo System x3650 M5 server?

[Alfred von Campe]

> On May 13, 2016, at 16:39, John R Pierce  wrote:
> 
> On 5/13/2016 1:27 PM, Alfred von Campe 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.
> 
> you do know, x86_64 runs i386 apps as long as you install the suitable i386 
> libraries, right?

Yes, but we have to change all of our Makefiles to use -m32 and there are some 
other issues as well.  We are moving towards 64-bit but are not quite there 
yet, and I thought I would initially install 32-bit CentOS 6 on our x3650 M5 
system as I did on the x3650 M4 systems.

> 
>> 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?
> 
> you might try the minimal ISO.   thats my default install image, then I use 
> yum to install everything my environment needs.

I have a completely automated installation via kickstart, so I usually just use 
the net install ISO image,  but I will try the minimal or perhaps even the 
LiveCD ISO when I am back in the office on Monday.

Alfred

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Re: [CentOS] Installing 32-bit CentOS 6 on a new Lenovo System x3650 M5 server?

[John R Pierce]

On 5/13/2016 1:27 PM, Alfred von Campe 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.


you do know, x86_64 runs i386 apps as long as you install the suitable 
i386 libraries, right?



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?


you might try the minimal ISO.   thats my default install image, then I 
use yum to install everything my environment needs.




--
john r pierce, recycling bits in santa cruz

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[CentOS] Installing 32-bit CentOS 6 on a new Lenovo System x3650 M5 server?

[Alfred von Campe]

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?

Alfred

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