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Thread: "AHCI Controller Unavailable" error installing Ubuntu 18.10

  1. #1
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    "AHCI Controller Unavailable" error installing Ubuntu 18.10

    I'm currently trying to install the latest version of Ubuntu on a custom build desktop PC. My intention is to dualboot with Windows (so I already have Win10 installed with space on my SSD for Ubuntu). However whenever I go to Try or Install Ubuntu, I'm getting boot errors.

    At first I was getting the following:
    Code:
    nouveau 0000:01:00.0: bus: MMIO write of 8000140 FAULT at 10eb14 [IBUS]
    ACPI BIOS Error (bug): Could not resolve [\_SB.PC10.SATA.SPT4._GTF.DSSP], AE_NOT_FOUND (20180531/psargs-330)
    Looked up the first error code, apparently this is an issue with Nvidia drivers, so booting without graphics drivers (e.g. this answer fixed that particular one. But now I have the following error:

    Code:
    ahci 0000:03:00.0: AHCI controller unavailable!
    The SATA Configuration in the BIOS is set to AHCI and there's nothing else obviously wrong (secure boot is disabled, Windows specific options are off, etc). My specs are:

    MSI Mpower Z97 Motherboard (with latest 2016 bios)
    Intel i7-4770k CPU
    GTX 980 4gb GPU
    Boot drive is Sandisk Ultra II SSD

    Any ideas?

  2. #2
    Join Date
    Mar 2019
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    Re: "AHCI Controller Unavailable" error installing Ubuntu 18.10

    Were you able to solve this? I'm having a similar issue when installing.

  3. #3
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    Ubuntu 18.04 Bionic Beaver

    Re: "AHCI Controller Unavailable" error installing Ubuntu 18.10

    Hello and welcome to the forum donkus please start your own thread so you can get the help you need instead of posting in someone else's thread.

    Thanks

  4. #4
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    Re: "AHCI Controller Unavailable" error installing Ubuntu 18.10

    I mean, no one ever responded to my thread in the first place and the issue didn't get resolved - not unreasonable to bump a thread in that situation IMO.

    Quote Originally Posted by donkus View Post
    Were you able to solve this? I'm having a similar issue when installing.
    No, unfortunately I never got past this error. I read that it may be because I was installing 18.10 instead of 18.04LTS but honestly I just got tired of messing around with bootable USB's and gave up. Might give it another try with LTS and then upgrade, though I'm worried that will just brick my installation.

  5. #5
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    Re: "AHCI Controller Unavailable" error installing Ubuntu 18.10

    Many (even new) SSD need firmware updates to work. Have you updated firmware?

    Next older model, issues could be the same:
    Disable MSI Z87 fast boot to get it to work
    http://ubuntuforums.org/showthread.p...5#post13258725

    Some other MSI,possibly similar issues:
    https://ubuntuforums.org/showthread.php?t=2357641
    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  6. #6
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    Re: "AHCI Controller Unavailable" error installing Ubuntu 18.10

    Alright, so I took another shot at this today, using the new 19.04 release.

    First thing I did was update my SSD firmware using Sandisk's tool. It did need an update, so I'm now running the latest version. That said other reviews have said the same SSD worked out the box for them on Ubuntu (albeit an older version).



    Then I went back to my BIOS, disabled anything that I think might have been causing conflicts (Intel rapid start for SSD's, Windows 8.1/10 fast start features) and double-double-checked that my hard drive mode was set to AHCI:


    I boot to the USB, 'Try Ubuntu (Safe Graphics)' (since trying without safe graphics, as before, causes a nouveau error that somehow isn't fixed yet?) - and there's the AHCI controller error again.

  7. #7
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    Re: "AHCI Controller Unavailable" error installing Ubuntu 18.10

    Please attach screen shots.
    Easy to do with Forum's advanced editor and the paperclip icon.

    With nVidia you need nomodeset.
    And now with 19.04 checking the install proprietary drivers should auto install a correct nVidia driver (not necessary the newest) where before you had to also boot install using nomodeset & then add nVidia driver yourself.
    At grub menu you can use e for edit, scroll to linux line and replace quiet splash with nomodeset.
    How to set NOMODESET and other kernel boot options in grub2 - both BIOS liveCD & grub first boot ( also UEFI with grub)
    How to add boot parameters, grub menu after install (also grub when UEFI)
    https://wiki.ubuntu.com/Kernel/KernelBootParameters &
    https://help.ubuntu.com/community/Grub2

    MSI Tomahawk B350 with Ryzen R5 1600 New UEFI required
    https://ubuntuforums.org/showthread.php?t=2390475

    MSI Tomahawk Z370 GTX 1070 TI [SOLVED] Grub error during install two NVMe drives
    https://ubuntuforums.org/showthread.php?t=2398599

    Also needed acpi=off boot parameter:
    https://ubuntuforums.org/showthread.php?t=2371556

    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  8. #8
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    Re: "AHCI Controller Unavailable" error installing Ubuntu 18.10

    I actually found the 'safe mode' graphics option seemed to bypass the need for 'nodemodeset' which I used previously, so the installed skipped straight to the AHCI error.


    As mentioned in my first post, I'm running the latest BIOS for my motherboard (1.B, which appears as 1.11 in the setup screen). I tried using the ACPI=OFF parameter and the nomodeset so my boot looked like this:

    Screenshot_1.jpg

    Unfortunately:

    Screenshot_3.jpg

  9. #9
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    Re: "AHCI Controller Unavailable" error installing Ubuntu 18.10

    Do you have multiple USB devices plugged in, or a multi-port device?
    It seems that is also an error.

    It sure looks like UEFI is set for AHCI, so do not know why it is saying AHCI not available.
    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  10. #10
    Join Date
    Jan 2019
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    Re: "AHCI Controller Unavailable" error installing Ubuntu 18.10

    I suspect it's complaining about my Inateck USB expansion card, as the only USB hub I have connected is on my monitor which is usb3-3 (and it successfully detects that I have a Blue Microphone plugged into it). The only other USB ports not directly on the motherboard I/O are on my case, but one of them is being used for the bootable USB, so is clearly working fine.

    Is there a way to get a more detailed log to diagnose the issue further, or is this as much detail as I can get?


    UPDATE: It's now working.

    I tried everything I could think of, including removing my USB expansion card, other hard drives, and extraneous USB devices. None of that worked.

    What worked in the end was disabling my motherboard's external SATA controller (and enabling SATA hot plugging, but I doubt that was what fixed it), which was previously set to AHCI. Presumably Ubuntu was trying and failing to use this - I'm not sure why it would or why it was failing though.

    MSI_SnapShot_02.jpg
    Last edited by daveface2; April 21st, 2019 at 12:45 PM.

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