• GRUB installation issues! (Dual Booting 2 SSDs)


    I hope this is the correct section for my issue…After installation, I can only boot to a Grub command prompt. If I type ‘exit’ at the prompt my windows install boots fine. The only way I can access my Antergos install is through a Super Grub2 usb. I really need some guidance here! It’s a pain having to go into my bios and manually boot from a USB. I’d appreciate any suggestions.

  • It’s not letting me edit my post and flagging my link as spam so please accept my apologies for the double post. The Grub prompt says: “GNU GRUB version 2.02~beta2-36ubuntu3.14 Minimal BASH-like line editing is supported. For the first word, TAB lists possible command completions. Anywhere else TAB lists possible device or file completions.” and then a “grub>” prompt. My fdisk -l output is:
    Disk /dev/sda: 232.9 GiB, 250059350016 bytes, 488397168 sectors
    Units: sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disklabel type: gpt
    Disk identifier: A4792BC4-787C-4387-B79C-21006CF05F01

    Device Start End Sectors Size Type
    /dev/sda1 2048 1023999 1021952 499M Windows recovery environment
    /dev/sda2 1024000 1228799 204800 100M EFI System
    /dev/sda3 1228800 1261567 32768 16M Microsoft reserved
    /dev/sda4 1261568 488396799 487135232 232.3G Microsoft basic data

    Disk /dev/sdc: 223.6 GiB, 240057409536 bytes, 468862128 sectors
    Units: sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disklabel type: dos
    Disk identifier: 0xcd0dcd58

    Device Boot Start End Sectors Size Id Type
    /dev/sdc1 2048 48830172 48828125 23.3G 83 Linux
    /dev/sdc2 48830173 56642672 7812500 3.7G 83 Linux
    /dev/sdc3 56642673 468857024 412214352 196.6G 83 Linux

    Disk /dev/sdd: 7.5 GiB, 8004304896 bytes, 15633408 sectors
    Units: sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disklabel type: dos
    Disk identifier: 0x00000000

    Device Boot Start End Sectors Size Id Type
    /dev/sdd1 * 1 23235 23235 11.4M cd unknown

    Disk /dev/sdb: 4.6 TiB, 5000981077504 bytes, 9767541167 sectors
    Units: sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 4096 bytes
    I/O size (minimum/optimal): 4096 bytes / 33553920 bytes
    Disklabel type: gpt
    Disk identifier: 3B222CEB-86EC-4E09-97DB-7C8F773DE1EE

    Device Start End Sectors Size Type
    /dev/sdb1 34 262177 262144 128M Microsoft reserved
    /dev/sdb2 264192 9767540735 9767276544 4.6T Microsoft basic data

    Partition 1 does not start on physical sector boundary.

  • @wwindexx
    Seems that you have installed Antergos in BIOS legacy boot mode. The installer stick (assuming it is /dev/sdd above) probably also is supporting only BIOS legacy boot.

    Windows is installed in UEFI mode.

    So the installer stick is booted in wrong format. How did you create the stick?
    The preferred ways to create the stick (on Windows) are:

    • etcher
    • rufus (in DD mode)

    and on Linux:

    • dd

    And you should be using the latest Antergos ISO (version 18.8, and not the minimal ISO).

  • @manuel
    That could be it, although I used the regular image from the Antergos website and followed the dual boot install instructions included in the installer. /dev/sdd is actually my Super Grub2 stick used to boot my Antergos install. I don’t know how Antergos would’ve installed in BIOS legacy mode when I used the only iso provided (Antergos Live ISO) and made the usb with Linux Mint’s imagewriter. I don’t know how to install it in UEFI mode - I just followed the included instructions.

  • @wwindexx if you write the ISO-IMAGE with dd or etcher theimage is untouched, and will be able to boot in both modes EFI and BIOS (legacy), but if you are using another imagewriting programm it may install another boot mechanism, and change the hybrid ISO-File… it must be copied as it is to USB drive.

installation321 grub126 issues100 dual40 Posts 5Views 350
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