How boot 7040m from the second hard drive

Question

I have a 7040m with two hard drives; a 2.5' 500Gb mechanical drive and a 256Gb MV.2 SSD. I have installed Ubuntu since this PC will not run Windows 11. The computer boots from the 2.5' mechanical drive and I want it to boot from the SSD. When I try to change the boot order in setup I get an error that their is not operating system and no drives are listed. How can I fix this? Thanks.

Chino de Oro · Answer

If you want to boot from SSD, install Ubuntu on SSD instead of HDD. Review this article for installation https://www.dell.com/support/kbdoc/en-us/000131655/how-to-install-ubuntu-linux-on-your-dell-pc

For the reason of installing Ubuntu because Win 11 is not officially support, you can attempt for yourself as it worked for me, it might work for you. System settings, set UEFI boot mode, Secure Boot is enabled, TPM is enabled. Installing Windows 11 using USB created by Windows Creation Tool. To set local account, I disconnected internet during installation and selected no internet option.

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How boot 7040m from the second hard drive