Installing CentOS 6.9

Discussion in 'UDOO X86' started by bigbiggreydog, Jun 25, 2017.

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  1. bigbiggreydog

    bigbiggreydog UDOOer

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    I just received my UDOO x86 and am trying to install an ISO of CentOS 6 [6.9]. Some software I want to run will not run on CentOS 7. The installation on the SD card works without problems but when I boot it after inustall, it doesn't run. I tried Ubuntu just to make sure everything is working and I was successful with this. Is there something with this version of CentOS and the UDOO that are incompatible?
     
  2. Maurice

    Maurice Active Member

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    Maybe you can boot CentOS in console mode so you can see the output to see where the startup fails?
     
  3. bigbiggreydog

    bigbiggreydog UDOOer

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    How do you connect to the board in console mode? I see with the other boards, you use micro USB, which the x86 board does not have. I see some reference to UART pin outs being used possibly but do not see any documentation of which connectors those are.
     
  4. Maurice

    Maurice Active Member

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    Connect a keyboard and a monitor, stop grub from booting and supply the correct boot parameters.

    For CentOS this article might be useful.
     
  5. bigbiggreydog

    bigbiggreydog UDOOer

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    Ok. I have a bit more information. If I install CentOS 7 and above or the latest Fedora, it works. If I install CentOS 6, or an older version of Fedora that will run the software I need, then I get this EFI Shell boot screen with device mapping table listings. I am wondering if there is something on the board that does not support this version of CentOS. I know you can't run this on an ARM processor but I thought this board was x86 so should support this. See attached image for boot screen I am seeing.
     

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  6. bigbiggreydog

    bigbiggreydog UDOOer

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    More specifically, I am suspicious CentOS will not run an an Intel Atom processor
     
  7. bigbiggreydog

    bigbiggreydog UDOOer

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    at least version 6
     
  8. x1800MODMY360x

    x1800MODMY360x Member

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    Thats the EFI Shell, type exit and select the boot device on the next screen.
     
  9. ccs_hello

    ccs_hello UDOOer

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    There is no need to use the serial console to see the boot up process.
    As indicated in post #4 (Maurice's), you just need to get into the single user mode and you're in command line mode as root.
    Modify configuration as needed.

    ccs_hello
     
  10. bigbiggreydog

    bigbiggreydog UDOOer

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    Thank you for the reply. If I exit shell, it never makes it to the boot device, it just goes to the BIOS setup screen. Once I quit that then it goes back to the EFI shell
     
  11. bigbiggreydog

    bigbiggreydog UDOOer

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    Also if I try to stop autoboot, it goes straight into shell. No typical choices of OS are shown. No CentOS splash screen, etc.
     
  12. bigbiggreydog

    bigbiggreydog UDOOer

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    Started a discussion in the CentOS community. They indicated CentOS 6 UEFI support is minimal to non-existent. Is there a way to put the UDOO into legacy BIOS mode?
     
  13. Markus Laire

    Markus Laire Active Member

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    Yes, in BIOS Boot-menu there is setting "Boot type" to choose between legacy/UEFI/dual. Default is dual and should work with both UEFI and legacy, but you can change it to Legacy which might work better.

    Other settings to try (in same Boot-menu):
    • Change "Add Boot Options" to "Last" (special boot options like EFI Shell are put after normal boot items)
    • "EFI/Legacy Device Order" - "Legacy device first" (default is 'Smart' which from my experience is anything but smart)
    • And "Legacy" submenu where you can change exact order for legacy devices
     
  14. ektor5

    ektor5 Administrator Staff Member

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    Hi @bigbiggreydog,

    CentOS 6 is really painful to install in Braswell boards due to the elderly kernel shipped with the distro, and unfortunately it hasn't the support for eMMC, Wifi/BT and other drivers, so it won't recognize them and maybe even boot.
    If you really need CentOS, be sure to run a minimum 4.10 kernel prior to installing the OS (or upgrade it if you manage to boot).
     

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