Trouble mounting luks drive from live usb after opening luks

General system Newbie
1

I have multiple drives on my system but two with OS, one with Endeavour and the other with Windows. I have been trying to reinstall Grub since I installed Windows 2nd but when I boot Endeavour from a live usb, I open the luks partitions and my issue comes when I try to mount them. Here is the drive info from
sudo parted -l

Model: Samsung SSD 980 1TB (nvme)
Disk /dev/nvme0n1: 1000GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags: 

Number  Start   End     Size    Type     File system  Flags
 1      1049kB  963GB   963GB   primary               boot
 2      963GB   1000GB  36.9GB  primary


Model: KINGSTON OM3PDP3256B-A01 (nvme)
Disk /dev/nvme1n1: 256GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags: 

Number  Start   End    Size    File system  Name                          Flags
 1      1049kB  106MB  105MB   fat32        EFI system partition          boot, esp, no_automount
 2      106MB   123MB  16.8MB               Microsoft reserved partition  msftres, no_automount
 3      123MB   255GB  255GB   ntfs         Basic data partition          msftdata
 4      255GB   256GB  794MB   ntfs                                       hidden, diag, no_automount

Here is the output when I try and open the luks partitions and mount them:

[liveuser@eos-2023.11.17 ~]$ sudo cryptsetup luksOpen /dev/nvme0n1p1 nvme01
Enter passphrase for /dev/nvme0n1p1: 
[liveuser@eos-2023.11.17 ~]$ sudo cryptsetup luksOpen /dev/nvme0n1p2 nvme02
Enter passphrase for /dev/nvme0n1p2:**strong text**
[liveuser@eos-2023.11.17 ~]$ sudo mount /dev/mapper/nvme01 /part01
mount: /part01: mount point does not exist.
       dmesg(1) may have more information after failed mount system call.
2

You are trying to mount it to a directory that doesnt exist. You need to create it first

3

Do you really need to re-install Grub?

Your Windows seems to be installed in UEFI mode and has its own ESP.
Your Linux is installed in Legacy mode.

I don’t think Windows has overwritten the MBR of the disk where your Linux reside. It must just have given itself the first boot priority. I guess you just need to bring up the Bios’ one time boot menu and choose which OS to boot.

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