Also, I plan to move my /home partition from its current location on an existing 256GB SATA SSD to a new 1TB SSD. That can wait but I mention it in case anyone might recommend doing that first.
I'm looking for suggestions on a safe way to do this in case my plan outlined below is flawed.
Does the installer depend on anything from the old installation?
Here is my current drive configuration:
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$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sdd 8:48 0 279.4G 0 disk
├─sdd2 8:50 0 24G 0 part [SWAP]
├─sdd3 8:51 0 513M 0 part /boot/efi
├─sdd1 8:49 0 142.3G 0 part
└─sdd4 8:52 0 112.6G 0 part /
sdb 8:16 0 5.5T 0 disk
└─sdb1 8:17 0 5.5T 0 part
sr0 11:0 1 1024M 0 rom
loop0 7:0 0 2.5M 1 loop
sdc 8:32 0 465.8G 0 disk
sda 8:0 0 232.9G 0 disk
├─sda2 8:2 0 232.7G 0 part /home
└─sda1 8:1 0 244M 0 part
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$ lsblk -f
NAME FSTYPE LABEL UUID MOUNTPOINT
sdd
├─sdd2 swap 03c393e0-2781-4e38-abee-46262931d090 [SWAP]
├─sdd3 vfat FA86-55AC /boot/efi
├─sdd1 ext4 5db6aca3-3a11-4dfa-ac5b-c8d76aa6bb2b
└─sdd4 ext4 be221b14-ca30-4f39-a89e-0b1265b8ea85 /
sdb
└─sdb1 ext4 3b905821-2464-45b3-a15e-111bf7083615
sr0
loop0
sdc vfat WD500 C580-7C9A
sda
├─sda2 ext4 263eb38d-8c5a-4519-934a-d7da57e74e4e /home
└─sda1
/dev/sdd1 is not mounted. This is left over from when I upgraded from Linux Mint 17.3 to 18.3 over 3 years ago. It appears that the installer left it behind as a backup. I temporarily mounted that partition and found /etc/linuxmint/info containing the reference to 17.3. This is just wasted space now as far as I can tell.
/dev/sdb1 is mounted only when I want to archive stuff or create a spare backup.
/dev/sdc will be removed since I don't use it any more.
Here is what I'm thinking but I'm not sure if it will work or is the best way of doing it.
- Backup everything
- Install NVMe on MB
- Install Mint 20.2 on NVMe using USB Live Boot and use the "Something else" option to keep my current /home intact
- Reboot from NVMe and verify things work
- Shut down and physically remove RAID controller and associated HDDs
- Boot and verify
Thanks!