experchange > ubuntu

Paul (07-11-19, 01:46 AM)
bilsch wrote:
[..]
> installer to offer to shrink the Win10 partition and install ubu along
> side of it. But is says no OS detected. That's no good.
> TIA. Bill S.


Boot Windows, go to Disk Management, shrink down the C:
partition. It can shrink to half its normal size from
within Windows and with Windows running on that same
C: partition. The shrink happens in real time.

You can also make space with GParted.

After that, try your install experiment again.

*Make sure* to use the popup boot key on your
computer, which will show

DVD drive...

UEFI DVD Drive... <=== boot this entry, to install in UEFI mode

If you boot the DVD in a mode other than the mode
the disk is already in, this is going to cause
an install failure.

Paul
Bobbie Sellers (07-11-19, 02:02 AM)
On 7/10/19 11:40 PM, bilsch wrote:
[..]
> installer to offer to shrink the Win10 partition and install ubu along
> side of it. But is says no OS detected.  That's no good.
> TIA.    Bill S.


Use the Windows partitioning tool to reduce the size of the
Windows partition then install on the freed space.
Or you can spend a few bucks on Partition Magic and use
that to reduce the size of the Windows partition.
Of course you want the Ubuntu Flash Drive to do all those
good things. Did you run the checksum on the Ubuntu download?

What tool did you use to write it to the Flash Drive?

You can check the partition with a live copy of GPartEd.
It should break out as the reserved small partition at the beginning
of the disk, a EFI partition, the Windows main installation and near
the end of the disk a partition to recover Windows if you have a problem.
Have you backed up your Windows installation yet?

If you can search the net you might find some references.
try
<https://superuser.com/questions/1224632/windows-10-live-usb-cant-find-installation-partition/1224685>

bliss
bilsch (07-11-19, 08:40 AM)
I am accustomed to install ubuntu along side of an existing Windows OS.
This Win10 pc has a GPT disk with 5 partitions and no unallocated space.
This is the first time I have tried putting ubu on a disk like this.
I don't have a Win10 system installation file or dvd. Also I believe a
copy of the Win10 drivers are on one of the partitions. I don't know
what to do if the ubuntu installer (flash drive) can't install ubuntu
along side the existing Win10. It says no OS detected and proposes to
erase the disk before installing ubuntu. I got this pc because I didn't
have any Win10. I want to have both Win10 and Ubuntu on this machine.

I suppose I can get rid of everything except the EFI partition and the
Win10 partition (forget the drivers). Combined these 2 occupy 225 GB of
a 256 GB drive. So I need to shrink the Win10 partition by about 65 GB
also. I think this all might not work. Instead, I want the Ubuntu
installer to offer to shrink the Win10 partition and install ubu along
side of it. But is says no OS detected. That's no good.
TIA. Bill S.
bilsch (07-11-19, 09:36 AM)
On 7/10/2019 4:46 PM, Paul wrote:
[..]
> the disk is already in, this is going to cause
> an install failure.
>    Paul


Thanks Paul. That solution was way simple. You stated it very well.
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