New partition is not in BIOS

Ghot said:

@Diano

Think of a hard drive or an SSD, as a... large room.
A "partition" is like a... "divider" within that room.
You can have more than one "divider" (partition), in that room.

BUT... the only thing the BIOS can "see" is the room (hard drive or SSD).
The BIOS can't "see" the "dividers" (partitions).

The BIOS "can" see the Windows Boot Manager.
So if you were to... install Windows on your G: "partition", the BIOS would then "see" the Windows Boot Manager.

We just "call" them "drive" letters. But really they are not "drive" letters, but are "partition" letters.



For example, this is a picture of MY File Explorer...

Attachment 403341



The BIOS can only see the physical "drives" (RED boxes). It can't see all the "partitions" (BLUE boxes).
I have Windows installed on the C:\ partition. The BIOS can NOT see the C:\ partition, but it CAN see the Windows Boot Manager, which is ON the C:\ partition.

The Windows Boot Manager has a... special pass to allow IT to show in the BIOS.



NOTE: You can have a physical drive with no "partitions".
The BIOS will see the physical drive, but it will NOT see whatever "letter" you gave it.

It does not matter whether the newly created partition is listed or shown in the BIOS. I have a test-run OS installed on the new partition, I can not start it, and I do not know where to start if because it is not listed or shown in the boot option of the BIOS.
How do I find the new partition so that I can boot the OS on it?

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cereberus said:

Groan - you cannot see partitions in Bios. We have told you that several times now!

Thank you.
A test-run OS is installed on the new partition and I want to boot it. How do I boot it if I can not see it in the Boot Option of the BIOS?

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Samuria said:

If you made a primary parition and made it bootable then it may show in the boot devices but it must be bootable

Thank you very much.
This is what I have done.
1. I created a Linux Mint Cinnamon USB bootable and ran it on my PC, the PC, for many days.
2. I made a new partition with Windows' hard drive manager, and the new partition is initialized as the G: drive on my PC.
3. The new partition, 100GB, is on my SATA3 hard drive which is 1.0TB and has 500GB free space where the new partition is made.
4.. Linux Mint Cinnamon is installed from the USB bootable to this new partition.
5. I tried to boot the Cinnamon but could not find the partition and/or did not know how to boot it.
This is how and why I am her asking for help.

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Megahertz said:

BIOS does the interface between the drive and the OS. It doesn't show any partition on the drive.
When the OS takes care of the boot sequence it assign drive letters to the some partitions.

If the partition has a drive letter, you can see it under Explorer.
To see all partitions on the drive, run Disk Manager (C:\Windows\System32\diskmgmt.msc)

Thank you.
The new partition, G: drive, is all over on my PC but in BIOS.

Thank you every one.
I am going to delete the new partition and the OS on it. This is because:
1. The BIOS on my PC does not boot any other OS but Windows.
2. Windows becomes dragging with Cinnamon installed on the HDD.
Again, appreciate and thank you, everyone.