#Install with Multiple Drives

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fierce marlin
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This particular How-to, while it should be able to be utilized to set different drives for each part, is only starting how to set the "Home" or in this case the "Var" folder to a different drive from the system drive.

  1. Create a bootable USB for Vanilla OS (if you're attempting this in a virtual OS for Vanilla, then I am not sure how that works, try these steps and let me know how it works). If you're not sure how to create a bootable USB, you can look it up on Google as there are a plethora of ways. I prefer to use Balena Etcher though.
  2. Make sure your BIOS is set to boot using UEFI. (there is a guide in this forumn to help you determine the common BIOS setup for your brand of Motherboard, I'll link later)
  3. Boot into the USB
  4. Proceed to where you select your disks per normal.
  5. Select all the disks you wish to use. For this, we will only be using 2 drives: an SSD for the sytem and an HDD for the home/var.
  6. When you select multiple drives, you will have to choose "Manual partitioning" so click onit.
  7. The next window will have you select the following requirements out of the partitions already laid out in your drives: Boot, EFI, System/Root, Var (home), Swap (optional but necessary for hibernation, we will be skipping this one for now).
  8. Please note that this will clear your partitions for Boot, System and Var/home. As it is currently made, there is no avoiding this.
  9. Alright, select "Gparted" at the top. We need to make sure that your 2 drives have the correct partitions, sizes, and formats.
  10. Select the one for your system. We are going to assume that this is a 128 gb drive called SDA.
  11. Delete all the partitions here. (this will in the end clear ALL of your files, so back them up to another drive before proceeding)
  12. Create a 1024 MB partition set to EXT4, label it "boot" this is not required nor will it stick, but it is helpful to know what is what.
  13. Create another partition that is 512 MB set to FAT32 and label it "efi"
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  1. Create one last partition as "unformatted" and label it "system" or "root"
  2. Hit the green check mark to apply the changes. Wait for it to complete. Once completed and without errors, we will go to the second drive.
  3. Your second drive will be your Var or Home folder. We are going to use the whole drive. Delete all partitions here. Again if you have files you need to keep, please back them up prior.
  4. We are assuming that this drive is 500 GB and is an HDD labelled SDB
  5. Select it and create a new partition of whatever format you prefer (ext4, BTRFS, etc.) I use BTRFS
  6. Hit the green check mark to apply all changes, once it is complete and without errors. Close gprated.
  7. When you go back to the installation window to select your partitions, it will have detected changes in your partitions and will say it has cleared all selections, this is expected and fine.
  8. Your boot will be your SDA1 which should be 1024 mb
  9. Your EFI will be your SDA2 which should be 512 MB
  10. Your System/Root will be the SDA3 which should be the remaining option for SDA
  11. Your Var will be SDB1 which should be 500GB.
  12. Once you've selected these four, the okay or continue option in the upper right should be blue. Click it.
  13. Select continue and proceed with installation per normal.