Dual boot Windows 10 and Ubuntu 20.04.1 on 2x512GB SSD (Aspire 7)

maro222
maro222 Member Posts: 4 New User
edited October 2023 in 2020 Archives
Hi,

I'm trying to install Linux into Acer Aspire A715-73G (NH.Q52EC.003). I would like to have Windows on first SSD and Linux on the second one. I'm also having problems with switching from RST to AHCI mode in BIOS. After I turn on AHCI and restart, only thing that shows up is a blank screen that says 'No Bootable Device'. 

Any help would be appreciated. 

Best Answer

  • JackE
    JackE ACE Posts: 45,211 Trailblazer
    Answer ✓
    The two 512GB m.2 cards seem to have been merged to act like a single 1TB SSD in a quasi-RAID0 Intel array which Linux installations usually can't handle. You have three choices. (1) Shrink the quasi C : partition and try to install Linux alongside Windows anyway in the present quasi-RAID0 optane mode. (2) If that fails, break and separate the array into two drives by changing BIOS mode to AHCI and re-install Win10 on only a one of the drives from a USB installation stick. Then try to install Linux alongside Windows on the second empty drive. (3) Remove the two existing drives for safe-keeping, and replace them with one or two new SSDs in AHCI mode and then install both Win10 and Linux alongside each other onto the new drives.

    If it was mine, I'd probably try number 1 because it's easily reversible if it doesn't work. Then go directly to 3 because number 2 is irreversible. New m.2 cards aren't that expensive these days.

    Jack E/NJ   

     

    Jack E/NJ

Answers

  • JackE
    JackE ACE Posts: 45,211 Trailblazer
    Please post a phone shot of your BIOS Information tab if possible. Jack E/NJ

    Jack E/NJ

  • maro222
    maro222 Member Posts: 4 New User
    edited September 2020
    JackE said:
    Please post a phone shot of your BIOS Information tab if possible. Jack E/NJ

  • JackE
    JackE ACE Posts: 45,211 Trailblazer
    OK. Now boot Windows. Then press WIN+R and enter 'diskmgmt.msc'. Please show screenshot of result if possible. Jack E/NJ

    Jack E/NJ

  • maro222
    maro222 Member Posts: 4 New User
    JackE said:
    OK. Now boot Windows. Then press WIN+R and enter 'diskmgmt.msc'. Please show screenshot of result if possible. Jack E/NJ

  • JackE
    JackE ACE Posts: 45,211 Trailblazer
    Answer ✓
    The two 512GB m.2 cards seem to have been merged to act like a single 1TB SSD in a quasi-RAID0 Intel array which Linux installations usually can't handle. You have three choices. (1) Shrink the quasi C : partition and try to install Linux alongside Windows anyway in the present quasi-RAID0 optane mode. (2) If that fails, break and separate the array into two drives by changing BIOS mode to AHCI and re-install Win10 on only a one of the drives from a USB installation stick. Then try to install Linux alongside Windows on the second empty drive. (3) Remove the two existing drives for safe-keeping, and replace them with one or two new SSDs in AHCI mode and then install both Win10 and Linux alongside each other onto the new drives.

    If it was mine, I'd probably try number 1 because it's easily reversible if it doesn't work. Then go directly to 3 because number 2 is irreversible. New m.2 cards aren't that expensive these days.

    Jack E/NJ   

     

    Jack E/NJ

  • maro222
    maro222 Member Posts: 4 New User
    JackE said:
    The two 512GB m.2 cards seem to have been merged to act like a single 1TB SSD in a quasi-RAID0 Intel array
    So I've tried option 2 (I don't mind the irreversibility since the laptop is new) and after switching to AHCI in BIOS I expected Win10 USB installation to show 2x512 GB SSDs but that didn't happen (see picture). So yeah, it's merged... I will be able to install both Linux and Windows like that, but I'm not sure if it would be a good idea. Would it cause performance issues? I'm thinking about 70% Windows/30% Linux partition of those 952.8 GBs. I really don't want to buy new pair of SSDs.. Or is this laptop just overall not suitable for dual boot? Btw, thanks for your advice so far, it really helped me with understanding this problem more clearly.



  • JackE
    JackE ACE Posts: 45,211 Trailblazer
    >>> I'm thinking about 70% Windows/30% Linux partition of those 952.8 GBs>>>

    I'd probably do mostly Linux especially if it was MintCinnamon because I think it's more predictable & stable than Win10. Besides, it can be easily configured to have the nearly the same look, function & feel of Microsoft's last halfway decent Windows version, Win7. And with the Wine overlay, many of my favorite Win apps like Irfanview work just fine. Cinnamon is all I use now as well as having full access to the Windows partition

    However, to break the merge, you  could try temporarily pulling one of the the SSD cards and force a Win10 install on the other drive. Then re-install the other SSD and proceed with the Linux install to see what happens.

    Jack E/NJ

    Jack E/NJ