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Custom Partitioning

asked 2018-09-25 13:22:32 -0500

saywot gravatar image

I currently have an old PC that came with a 500Gb HDD plus a 1Tb HDD running Microsoft Vista on some slow-ish dual core CPU and 2Gb of DDR2 RAM. I think I've already thrown as much RAM into the box as the MoBo will see (there's 8Gb in the 4 slots but the Dell motherboard only reports 6Gb ), Ive also dropped in an older Nvidea graphics card and I'm sure the drivers for that will become their own seperate question. So I have a 100Gb SSD to add to the machine and, wait for it ........ an E3600 core 2 duo CPU !!

In about 24 hours all the spare parts will be assembled and I'll be ready for an install so here's my question. I want to end up with the "/" partition ( all the system and programmes) on the faster SSD and spread "home/saywot" over the other 2 drives. How might this be done ?

I know a 10yr old dell will never be a super-fast piece of kit, but max RAM, fastest CPU that will install and running (mostly) from a SSD should be tolerable

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answered 2018-09-25 13:45:09 -0500

florian gravatar image

updated 2018-09-25 14:10:56 -0500

What you are trying to do is pretty simple and can be configured using Anaconda's (the installer's) partitioning tool.

Just make sure you select all drives in the first step. Then, use an LVM setup. It allows you to simply place /, /boot and swap on the SSD (say sda), and have one volume that spans over the other two HDDS (sdb and sdc) and that will be mounted to /home. Piece of cake with Anaconda and LVM setup.

EDIT: As a suggestion, if you got a modern machine with 30GB of free disk space, just fire up a virtual machine (In Gnome Boxes, VirtualBox or whatever) with two 15GB virtual hard drives and test that scenario.

To give you an idea...

1.) image description

2.) image description

3.) Use the modify (devices) button for /boot and create another Volume Group (modify) to have /home in a different volume group than /

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And when defining your volume group for /home, you can select which physical volumes should be used for that group. In your case mark the two HDD, or even the SSD to use the remaining space there.

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answered 2018-09-25 13:33:33 -0500

masteroman gravatar image

I would likely approach this by installing everything on SSD and then after the install is complete assemble MD array or LVM+MD on top of some level of RAID for rest of the drives.

That pool would likely be mounted to /mnt/storage or something like that and then I would symlink main directories from home to that storage so they're saved on redundant storage.

This would speed up overall things as firefox profile and things like that would be loaded from fast ssd drive while persistent data (Downloads, Music, etc.) would be on redundant array.

Of course this depends solely on your wishes and ideas, so if you have anything else in mind let us know and I'll chime in with potential solutions.

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Asked: 2018-09-25 13:22:32 -0500

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Last updated: Sep 25 '18