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I have an old PC on which I am already using windows 10. I am trying to dual boot Ubuntu 24.04 LTS on it as I have found that it is better for development purposes. I am installing it via USB flash drive which I created on another laptop and installed Ubuntu successfully on it using that same USB drive, which proves that the installation drive is not corrupt.
I had already created some unallocated space from Windows to install Linux, then booted into Ubuntu to install it. But it shows an unexpected error at the last step of installation. After skimming through the log file and searching the internet, I got a hint that the error is occurring while creating partitions. Things I tried after that:

  1. To manually create partitions for Ubuntu root and home directories. I used this post to do the manual partitioning and followed each step clearly. But, got the same error.
  2. Change the SATA mode from IDE to AHCI from BIOS, as was suggested by ChatGPT. But still got the same error.

I have enclosed the log file of last installation attempt (after changing SATA mode). I hope this is enough for detecting the error in the installation.

Michael Stevens
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2 Answers2

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So, I was successfully able to install Ubuntu. The issue was that I was using a 3rd party tool to shrink drive in windows (due to the disk management just getting stuck at loading cursor after I tried to shrink a drive). In the third party tool, it showed unallocated space but in disk management it was showing free space. The crucial detail to be noted is

Shrinking logical drive creates free space.

And

Shrinking a Primary drive creates unallocated space.

And the drive I shrunk was logical not primary. After I converted free space to unallocated space, I was able to install Ubuntu 24.04 successfully in that space, from my USB drive.

Michael Stevens
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It seems you do not need to create another partition if you want to boot, cause your old PC is for sure Legacy bios, the supplementary partition is for EFI.

Ubuntu actually not totally finish cooking imposing so this UEFI start. The idea under is respectfull, but when you are in BIOS nothing is clear, you just have to impose that you don't want the new installation some steps, limit a fight !

What you can do is start your machine on live USB, delete the FAT32 partition you do not need, then install "BootRepair" and run it. Then it will be possible to start

Djizuss
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