error failure reading sector from fd0

Hi

Ubuntu was upgraded from 16.04 to 20.04.

Now the server wont boot, its stuck on the below screen.

Code:error failure reading sector from fd0
error: disk 'lvmid/WsS1fw-pRDhel' not found.
Entering rescue mode...
grub rescue>fdisk -l output - not sure what

Partition 2 does not start on physical sector boundary means

Code:root@noconsite01:~# fdisk -l
Disk /dev/sda: 16 GiB, 17179869184 bytes, 33554432 sectors
Disk model: Virtual Disk
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x382a1065

Device Boot Start End Sectors Size Id Type
/dev/sda1 2048 33552383 33550336 16G 7 HPFS/NTFS/exFAT

Disk /dev/sdb: 30 GiB, 32213303296 bytes, 62916608 sectors
Disk model: Virtual Disk
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 116F0EEC-213D-4397-8BEC-96D0FA355851

Device Start End Sectors Size Type
/dev/sdb1 2099200 62916574 60817375 29G Linux filesystem
/dev/sdb14 2048 10239 8192 4M BIOS boot
/dev/sdb15 10240 227327 217088 106M EFI System
/dev/sdb16 227328 2097152 1869825 913M Linux extended boot

Partition table entries are not in disk order.

Disk /dev/sdd: 128 GiB, 137438953472 bytes, 268435456 sectors
Disk model: Virtual Disk
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x68468d32

Device Boot Start End Sectors Size Id Type
/dev/sdd1 2048 209715199 209713152 100G 8e Linux LVM

Disk /dev/sdc: 64 GiB, 68719476736 bytes, 134217728 sectors
Disk model: Virtual Disk
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0x7effdf0c

Device Boot Start End Sectors Size Id Type
/dev/sdc1 * 2048 999423 997376 487M 83 Linux
/dev/sdc2 1001470 104855551 103854082 49.5G 5 Extended
/dev/sdc5 1001472 104855551 103854080 49.5G 8e Linux LVM

Partition 2 does not start on physical sector boundary.

Disk /dev/mapper/Ubuntu--vg-root: 147.52 GiB, 158397890560 bytes, 309370880 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/mapper/Ubuntu--vg-swap_1: 1 GiB, 1073741824 bytes, 2097152 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
root@noconsite01:~#What commands can one run in the grub rescue screen ?

or

Can i fix this from single user mode but how ?

Thanks