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I have a laptop with windows 10 installed on it, and I want to dual boot ubuntu onto it. I've done this before once, but the install also installed GRUB, probably because I picked the "install alongside windows" option instead of manually installing to a partition. I would like to use MBR instead of GRUB, with no new partitions added.

I've looked at this, which pretty much sums up what I want to do, but seeing as this article is 8 years old, is it still accurate? do I still have to jump through all the hoops of installing grub and setting a timeout of 0?

bigboi
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    Partitions are either MBR(msdos) or gpt. Grub installs into the MBR for BIOS boot. But Windows 10 if preinstalled has to be UEFI with gpt partitioning & then Ubuntu needs to be UEFI also. Or is Windows 10 an upgrade from Windows 7 which usually was BIOS/MBR? Post this above: sudo parted -l – oldfred Apr 23 '20 at 20:57
  • I don't have ubuntu installed currently, had to jump thought a few hoops a couple of years back to get rid of the grub installed. My windows is a UEFI install, confirmed through msinfo32. It was also a fresh install, not upgraded through windows 7. – bigboi Apr 24 '20 at 02:49
  • What brand/model system and video card/chip? Some need UEFI settings or boot parameters. Shows installer with screen shots. Both BIOS purple accessibility screen & UEFI black grub menu screen https://help.ubuntu.com/community/UEFI Also shows Windows 10 screens or similar to Windows 8 https://askubuntu.com/questions/221835/installing-ubuntu-on-a-pre-installed-windows-10-with-uefi & http://ubuntuforums.org/showthread.php?t=2147295 – oldfred Apr 24 '20 at 13:46
  • Dell xps 13 9350 with a i7-6560u, which has integrated iris 540 graphics. I think I should be fine with regrads to your last two links, but will what I want to work if I can just install ubuntu manually without a bootloader? – bigboi Apr 24 '20 at 20:54
  • Dell needs drives changed to AHCI, but first install Windows AHCI drivers. https://askubuntu.com/questions/696413/ubuntu-installer-cant-find-any-disk-on-dell-xps-13-9350/743329#743329. Many Dells need UEFI update & if SSD, SSD firmware update. Make sure both UEFI fast boot & Windows fast startup are off. – oldfred Apr 24 '20 at 22:12
  • I know I have to change my windows drive to ACHI, but after that, how should I install ubuntu so that I don't have to deal with grub? On another note, can I have my windows patition non ACHI, and my ubuntu partition ACHI so that there's a sort of "hidden" OS depending on which bios setting i'm on? – bigboi Apr 25 '20 at 19:46
  • AHCI is a drive setting. And drive is the entire physical drive. Grub is both a menu and boot loader, so you have to have grub as boot loader. But can use UEFI as menu or install other menu like rEFInd. https://help.ubuntu.com/community/UEFI Also shows Windows 10 screens or similar to Windows 8 https://askubuntu.com/questions/221835/installing-ubuntu-on-a-pre-installed-windows-10-with-uefi – oldfred Apr 25 '20 at 21:02

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