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Thread: Trying to go from 16.4 32 bit to 20.04 64 bit, no boot from usb

  1. #1
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    Trying to go from 16.4 32 bit to 20.04 64 bit, no boot from usb

    I have Ubuntu 16.04 running on an Eee PC but want to upgrade to 20.04.
    So I downloaded (on another host) ubuntu-mate-20.04.1-amd64.iso and wrote it via Startup Disk Creator to a 32 GByte USB stick.
    On the Eee PC I changed the boot priority to Removable Device and tried to boot.
    I see some activity on the USB-sticks led, but the computer boots from the hard disk.
    I tried different USB ports, without success.

    Any ideas?

  2. #2
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    Re: Trying to go from 16.4 32 bit to 20.04 64 bit, no boot from usb

    Isn't the Eee PC 32-bit hardware? If so it won't boot a 64-bit installer.

  3. #3
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    Re: Trying to go from 16.4 32 bit to 20.04 64 bit, no boot from usb

    If it is a 32 bit only machine, you can only upgrade to 18.04. The last 32bit Ubuntu version still supported. 20.04 only works on 64 bit CPUs. Will have to find another Linux after support for 18.04 stops.

  4. #4
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    Re: Trying to go from 16.4 32 bit to 20.04 64 bit, no boot from usb

    Wikipedia says 64-bit, but who knows?

  5. #5
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    Re: Trying to go from 16.4 32 bit to 20.04 64 bit, no boot from usb

    Both of the ones that I had were 32 bit.

  6. #6
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    Re: Trying to go from 16.4 32 bit to 20.04 64 bit, no boot from usb

    Quote Originally Posted by Autodave View Post
    Both of the ones that I had were 32 bit.
    +1
    Also in the title of the OP's thread "16.4 32 bit to 20.04 64 bit"
    I remember even Lubuntu 18.04 ran applications very poorly on these machines. (Browsers and some GUI's would take it to it's knee's)
    Eee PC models have typically used netbook specific processors or ultra-low voltage versions of mainstream processors. The earliest Eee PC models used a 900 MHz Intel Celeron M processor underclocked to 630 MHz. Later models shipped with Intel Atom and AMD Fusion processors.
    Last edited by 1fallen; January 6th, 2021 at 08:10 PM.
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  7. #7
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    Re: Trying to go from 16.4 32 bit to 20.04 64 bit, no boot from usb

    lscpu says:
    Architecture: x86_64
    CPU op-mode(s): 32 bit, 64 bit

    and /proc/cpu-info says:
    Intel(R) Atom(TM) CPU N455 @ 1.66 GHz
    address sizes 32 bits physical 48 virtual

  8. #8
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    Re: Trying to go from 16.4 32 bit to 20.04 64 bit, no boot from usb

    OK, it is 64-bit.

    Please redo the USB or try a different stick.
    And, of course, make sure the ISO isn't corrupt, either from a problematic download or from being transferred from one system to another.

  9. #9
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    Re: Trying to go from 16.4 32 bit to 20.04 64 bit, no boot from usb

    I now verified the checksum: o.k.
    Transferred to micro-SD chip (using Startup Disk Creator) now instead of USB-stick, attached via USB-cardreader to the Eee PC.
    Same result: immediately after the boot screen, I see the grub menu from the hard disk.
    Using dd instead of Startup Disk Creator makes no difference.

    Now I found the SOLUTION:
    It is not enough to set the boot Device Priority, but one has to
    use Boot -> Hard Disk Drives
    and make USB the 1st Drive.

    Weird!

  10. #10
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    Re: Trying to go from 16.4 32 bit to 20.04 64 bit, no boot from usb

    All OK now? Booting OK? I suggest you wipe the current 32bit install off and do a clean install of 64bit Ubuntu to avoid any cruft from the old install. You can restore your user data from your backups

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