I’m on partition disks, configuring LVM on a computer with 2 drives: /dev/nvme01 is the device I want to install in, SCSI2 is a storage HDD I do not want to format, I need the data.
What bugs me is ‘the partition tables of the following devices are changed’: both drives.
Am I going to lose data in the second drive, SCSI2, if I proceed? Should I physically remove the second drive instead?
ETA: thanks for your input
- If you are unsure I would certainly disconnect the second drive just to be sure and have piece of mind. 
- Likely changing the “active” flag or boot stuff, but as the other commenter says, if you aren’t 100% confident, disconnect the scsi 
- also if you “need” the data on SCSI. 
 2 backups are recommended anyway, but esp before fdisking around with partitions.

