stdin: Invalid argument
Failed to read last sector (998304397): Invalid argument
HINTS: Either the volume is a RAID/LDM but it wasn't setup yet,
   or it was not setup correctly (e.g. by not using mdadm --build ...),
   or a wrong device is tried to be mounted,
   or the partition table is corrupt (partition is smaller than NTFS),
   or the NTFS boot sector is corrupt (NTFS size is not valid).
Failed to mount '/dev/nvme0n1p3': Invalid argument
The device '/dev/nvme0n1p3' doesn't seem to have a valid NTFS.
Maybe the wrong device is used? Or the whole disk instead of a
partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around?
mount: mounting /dev/nvme0n1p3 on /cdrom failed: No such device
The disk contains an unclean file system (0, 0).
Metadata kept in Windows cache, refused to mount.
Falling back to read-only mount because the NTFS partition is in an
unsafe state. Please resume and shutdown Windows fully (no hibernation
or fast restarting.)
Could not mount read-write, trying read-only
stdin: Invalid argument
stdin: Invalid argument
Failed to read last sector (998304397): Invalid argument
HINTS: Either the volume is a RAID/LDM but it wasn't setup yet,
   or it was not setup correctly (e.g. by not using mdadm --build ...),
   or a wrong device is tried to be mounted,
   or the partition table is corrupt (partition is smaller than NTFS),
   or the NTFS boot sector is corrupt (NTFS size is not valid).
Failed to mount '/dev/nvme0n1p3': Invalid argument
The device '/dev/nvme0n1p3' doesn't seem to have a valid NTFS.
Maybe the wrong device is used? Or the whole disk instead of a
partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around?
mount: mounting /dev/nvme0n1p3 on /cdrom failed: No such device
stdin: Invalid argument
passwd: password expiry information changed.
dbus-daemon[1135]: [session uid=999 pid=1135] Activating service name='org.gtk.vfs.Daemon' requested by ':1.0' (uid=999 pid=1136 comm="" label="unconfined")
dbus-daemon[1135]: [session uid=999 pid=1135] Successfully activated service 'org.gtk.vfs.Daemon'
dbus-daemon[1135]: [session uid=999 pid=1135] Activating service name='org.gtk.vfs.Metadata' requested by ':1.0' (uid=999 pid=1136 comm="" label="unconfined")
fuse: device not found, try 'modprobe fuse' first
dbus-daemon[1135]: [session uid=999 pid=1135] Successfully activated service 'org.gtk.vfs.Metadata'
A connection to the bus can't be made
Using CD-ROM mount point /cdrom/
Identifying... [4408452aaad71de00e30c13a2b646739-2]
Scanning disc for index files...
Found 2 package indexes, 0 source indexes, 0 translation indexes and 1 signatures
Found label 'Ubuntu 20.04.1 LTS _Focal Fossa_ - Release amd64 (20200731)'
This disc is called: 
'Ubuntu 20.04.1 LTS _Focal Fossa_ - Release amd64 (20200731)'
Copying package lists...gpgv: Signature made Fri Jul 31 16:48:33 2020 UTC
gpgv:                using RSA key 843938DF228D22F7B3742BC0D94AA3F0EFE21092
gpgv: Good signature from "Ubuntu CD Image Automatic Signing Key (2012) <cdimage@ubuntu.com>"

Reading Package Indexes... 0%

Reading Package Indexes... Done
Writing new source list
Source list entries for this disc are:
deb cdrom:[Ubuntu 20.04.1 LTS _Focal Fossa_ - Release amd64 (20200731)]/ focal main restricted
Repeat this process for the rest of the CDs in your set.