inconsistent partition info in disk manager / diskpart

Hello Forum!

I hope I can find a guru here, who can explain the "interesting" phenomena of different partition types (in disk manager it's actually listed in the "status" column) being displayed by disk manager vs diskpart.

The setup: disk0 has 8 partitions (3 primary, 1 extended, 4 logical).

This is correctly shown by diskpart: partitions 1,2 and 3 are primary, partition 0 is extended, partitions 4,5,6 and 7 are logical drives within the extended partition.

Disk manager, on the other hand, lists 6 primary partitions (these are partitions 1,2,3,4,5 and 6 in diskpart) and one extended partition (probably partition 0, but smaller...) containing only one logical drive (partition 7).

The partitions I am actually trying to access are 4,5 and 6. They contain a linux installation, wich, oh wonder, i cannot access anymore after upgrading to windows 10. The entry in the bootmanager is still available, but it cannot find the linux boot manager anymore, which is located on partiton 5.

I used and still use the windows boot manager for the multiboot. Partitions 2 and 3 contain the windows 7 and 10 installs and work ok.

Just to clarify: this setup was working before upgrading to windows 10. I upgraded the windows 8.1 install in partition 3.

My intuition is that it must be related to the inconsistent display of the partitions in windows, since diskpart also lists partitions 4,5 and 6 as hidden.

So, any guru around?

Thank you in advance for enlighting info!

My guess is that the Linux logical partitions got corrupted by the Win10 installation. The Ubuntu forums has lots of posts from folks claiming their logical partitions got corrupted after a Windows upgrade.

If you have a live USB/CD, you could boot from that and run "fsck" on the partitions -- but don't be surprised if they are damaged.