Dual Boot Issue on Ubuntu 20.04 on Legion 7i

I just recently tried to dual boot a new Legion 7i that I purchased: (16%E2%80%B3-intel)/82k6005sus?orgRef=https%253A%252F%252Faccount.lenovo.com%252F.

1. I basically shrank the pre-installed windows partition.

2. Created a EFI boot partition and a root partition because when I tried doing the installation with the "something else" option the Ubuntu installer complained it could not find an EFI partition. The "Install Ubuntu Alongside Windows" option never appeared in the installer.

3. Installed Ubuntu 20.04 on the newly created partition

It seems this broke my Windows partition because I could no longer see it in the BIOS and it didn't show on the grub loader even if I tried to do a grub repair. I tried to also recover the windows partition by creating an bootable windows disk but it can't even find the original partition anymore. I ended up doing a factory reset of the laptop using the Lenovo USB Recovery key and started over again. I searched around a bit I there were some suggestions so I did the following:

1. Turned off secure boot in the bios and turned off fastboot in Windows.

2. Created a free partition in windows:

3. Tried normal install again:

4. Install alongside windows doesn't show again so I choose do "something else" because:

5. These are the partitions provided to me again:

At this point I'm sort of a loss on what to do so any advice would be much appreciated. Not sure if it has to do with the being nvme devices because I only have had experience in the past with sda devices. Thanks for reading!

Edit This is the output for sudo parted -l

Error: Invalid argument during seek for read on /dev/nvme0n1

Error: The backup GPT table is corrupt, but the primary appears OK, so that will be used.

Model: SAMSUNG MZVL21T0HCLR-00BL2 (nvme) Disk

/dev/nvme0n1: 1024GB

Sector size (logical/physical): 512B/512B

Partition Table: unknown Disk

Flags:

Error: /dev/nvme1n1: unrecognised disk label

Model: SAMSUNG MZVL21T0HCLR-00BL2 (nvme)

Disk /dev/nvme1n1: 1024GB

Sector size (logical/physical): 512B/512B

Partition Table: unknown

Disk Flags:

1 Answer

If anyone runs into the same problem I did for installing Ubuntu on a Legion 7i, it's because the factory installation of Windows is on a RAID0. It seems that the Ubuntu installer has trouble finding the partitions or Windows when it is using RAID0. If you want to fix it I'd follow these instructions I found online for converting your Legion 7i to AHCI: