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DVD worked on MSI Z490 board with intel i7. With MSI Z690 board and intel i7, it won't boot with DVD plugged into SATA. Message "AHCI unavailable."

gabc2301
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    is it because in your boot menu in BIOS you have the CD drive set as the default boot media? – graham Jan 28 '23 at 17:35
  • Your question is rather unclear; any details in the title should also be provided in the question as not all browser setups show the title when when your question is viewed (*not all of us large screen PCs*). It seems to be a *firmware* setting that is incorrect, which is also specific to your motherboard (ie. a hardware question, not OS question). – guiverc Jan 28 '23 at 21:51
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    Does this answer your question? [How to change boot priority?](https://askubuntu.com/questions/208417/how-to-change-boot-priority) – karel Jan 29 '23 at 11:57
  • Boot priority does not include DVD drive. It may be the later MSI board. Booted with MSI Z490 and DVD worked. With MSI Z690 it did not work. – gabc2301 Feb 02 '23 at 21:50
  • Am new to this. Sorry to put in redundant question. But I added the tag "boot" which better described my problem. Does this site only deal with Ubuntu and not with its interaction with hardware? – gabc2301 Feb 02 '23 at 21:53
  • Is the AHCI a driver for the DVD? – gabc2301 Feb 02 '23 at 21:55

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