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Installer doesn't detect Windows 10

Posted: Thu Mar 08, 2018 5:15 pm
by Amfidiusz
Hey guys,

I am currently trying to install latest Linux Mint alongside my Win10 system. However, LiveCD installation doesn't detect any other system present, offering a full wipe or installation on a chosen partition. I believe none of those will add a choice of system on a pc boot.

What should I do to be able to use both systems on my setup? I am using uefi if it matters. Windows is currently installed on SSD, I created 100gb partition on HDD for mint.

https://ibb.co/j4fcXn
https://ibb.co/juP4Cn

Re: Installer doesn't detect Windows 10

Posted: Thu Mar 08, 2018 5:34 pm
by JerryF
This is a shot in the dark but...

I think that because you have 3 partitions already and Mint usually set up one primary and one extended, you will have surpassed the 4 maximum for an MBR hard disk.

Re: Installer doesn't detect Windows 10

Posted: Thu Mar 08, 2018 5:39 pm
by Mattyboy
Use the

Code: Select all

lsblk
command in terminal from the live desktop to list your drives, partitions and flags. Based on your screenshot yours will probably be sda2... but don't take my word for it, that's why you're listing them ;)

When you know which partition you wish to install to select the "something else" option in your second screenshot and point the installer to it. ( Make sure you're using a logical partition ).

Re: Installer doesn't detect Windows 10

Posted: Thu Mar 08, 2018 7:00 pm
by Amfidiusz
Thanks to both of you. I'm pretty sure it's the selected partition on the screenshot as it's the only one with 100 gigs. And the only one not formatted in NTFS/fat, bigger than 8mb.

Will installing Mint this way allow me to choose system at the boot later on? Won't it create a boot-up based on Linux only, as Windows was not detected? Or ignore Linux as the default Windows manager will load on start?

Furthermore, what to choose in "Device for boot loader"? Same physical disk as the partition I'm going to use?

Re: Installer doesn't detect Windows 10

Posted: Thu Mar 08, 2018 7:54 pm
by JerryF
Amfidiusz wrote:
Thu Mar 08, 2018 7:00 pm
Thanks to both of you. I'm pretty sure it's the selected partition on the screenshot as it's the only one with 100 gigs. And the only one not formatted in NTFS/fat, bigger than 8mb.

Will installing Mint this way allow me to choose system at the boot later on? Won't it create a boot-up based on Linux only, as Windows was not detected? Or ignore Linux as the default Windows manager will load on start?

Furthermore, what to choose in "Device for boot loader"? Same physical disk as the partition I'm going to use?
Not sure about Mint recognizing Windows after installation. It should. I think the reason that the installer didn't present the choice of Install alongside Windows was that it couldn't manage doing the install with 3 partitions already there. With the Something else option, you can tell the installer that the new partition for Mint will be a Logical Partition.

Your hard disk looks as if it's an MBR disk, so you would choose sda as the Device for bootloader.

Re: Installer doesn't detect Windows 10

Posted: Thu Mar 08, 2018 8:21 pm
by Amfidiusz
Thank you. lsblk command gave me the following result:

https://m.imgur.com/ZjajPpa

I am pretty sure I want to install Mint on my sdb free space, which will be sdb2, I guess.

To sum up:
- I create a new Ext4 partition in the free space selected on sdb
- I leave sda as my boot loader device (as on above screenshot, will be my SSD where windows is currently installed)
- I hope Windows gets detected and I get a choice of system on boot - if ot come back for help here ;)

Am I correct? If so, I will proceed in the weekend. Thanks again.

Re: Installer doesn't detect Windows 10

Posted: Thu Mar 08, 2018 8:55 pm
by Mattyboy
Yes it looks like sdb2
Install to a logical sdb2.
After install set your computer in bio's to boot first to the Linux drive sdb2
When you're booted into Linux for the first time open the terminal and run

Code: Select all

sudo update-grub
On next boot Windows should be a boot option in the grub menu.

Its no biggy if grub doesn't pick it up as you can just boot either OS from the bio's boot menu when you first switch on, this is usually achieved by hitting f12 and selecting the required drive.

Re: Installer doesn't detect Windows 10

Posted: Thu Mar 08, 2018 10:16 pm
by AZgl1500
on my BIOS, it is F11 to select what to boot, so be aware IF, F12 don't work

Re: Installer doesn't detect Windows 10

Posted: Fri Mar 09, 2018 3:07 am
by michael louwe
@ Amfidiusz, .......
Amfidiusz wrote:.
.
For a dual-drives computer, you must use the manual "Something else" install method. Then ...

[1.] Click on the 100+GB free space on the 1TB HDD and manually partition it accordingly, eg / or Root partition = 40GB/ext4/mount point is /, Primary partition/at the beginning of this space; Home partition = 50GB/ext4/mount point is home, Primary partition/at the beginning of this space; Swap partition = 1.5X RAM size/flagged as swap area. ... viewtopic.php?f=42&t=122276 (manual partitioning Tutorial for Legacy BIOS mode and MBR/ms-dos disks)[use as a guide]
[2.] Ensure that the "Device for boot loader installation" is the Windows EFI System Partition(= fat32/104MB/flagged as boot/efi or boot,esp) = /sdb2
[3.] and so on...
.

For further info ... https://ubuntuforums.org/showthread.php?t=2147295 (UEFI Installing - Tips )[see chapter for Two Drives Install]
https://nwrickert2.wordpress.com/2013/0 ... and-linux/ (notes-on-uefi-windows-and-linux)
https://askubuntu.com/questions/380447/ ... ew-machine (uefi-boot-fails-when-cloning-image-to-new-machine)