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My laptop uses MBR partitioning scheme. Currently there are already 4 partition on my disk, and 3 of them are primary partitions. A system reserved primary partition, the Windows C: partition (primary), another primary partition D: and an extended partition comprising 2 logical drives E: and F:

Partitions on my disk:

Partition on my disk (image)

I am planning to install Ubuntu 20.04 on one of the partitions. I am willing to allocate about 200GB to Ubuntu. Do I need a primary partition to install Ubuntu? In that case, I would have to delete the D: partition, but I am worried if it is safe to delete an intermediate partition? (as there are E: and F: partitions).

I want to install the Ubuntu bootloader (GRUB2) on the Ubuntu partition itself so that I don't mess up my Windows bootloader. I have read that for MBR partition scheme, the system can only boot from primary partitions. Can I use a logical partition to install Ubuntu on it, or should I only go for a primary partition?

I am asking for the best and safest way to dual boot with Ubuntu. Considering my partition scheme, can you suggest the best possible way to achieve this?

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  • Does this answer your question? Ubuntu installation partitioning: Logical or primary? and How to use manual partitioning during installation?
    – karel
    Feb 18, 2021 at 8:53
  • Do your Windows partitioning using Windows Disk Management. If it won't let you delete the partition use an extended partition.
    – C.S.Cameron
    Feb 18, 2021 at 12:22
  • Windows will not boot Ubuntu without third party hacks. With old BIOS/MBR configuration you only have one MBR and BIOS boots from that MBR. Grub will boot working Windows, so typically better to install grub to MBR, not to partition. Windows only boot from primary NTFS partition with boot flag. Grub does not use boot flag. With BIOS/MBR, be sure to have both current versions of Windows repair/recovery flash drive & Ubuntu live installer to make repairs.
    – oldfred
    Feb 18, 2021 at 14:19
  • @oldfred I was thinking of using EasyBCD (third-party software) to choose between Windows and Ubuntu when booting, if I install Ubuntu bootloader to the Ubuntu partition. What would you recommend: EasyBCD or GRUB2 ?
    – Hrivu Banerjee
    Feb 19, 2021 at 12:47
  • @C.S.Cameron My actual worry is: Suppose I use the D: partition for Ubuntu. Then, would Windows will recognise the E: and F: drives. Actually, I have seen people shrinking space from the last drive that is present in the disk, I was wondering if only the last drive should be used for dual-booting.
    – Hrivu Banerjee
    Feb 19, 2021 at 12:52

1 Answer 1

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Do I need a primary partition to install Ubuntu?

Short answer, "No, You don't need a primary partition to install Ubuntu". For more clarification see this question.

First and foremost, backup everything that you think is important, messing with partitions are risky. Secondly, while installing you should choose something else option and create manual partitions for ubuntu installation alongside windows. In case after installation you cannot boot into ubuntu, check the boot order and change it to Ubuntu Grub bootloader.

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