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[Solved] Can dual distros share /home?
(sh.itjust.works)
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this post was submitted on 09 Mar 2024
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Yeah, But if I understand correctly that's how you've already got it set up: your
/homeis on your hdd. Once you have your new ssd installed and your partitions set for opensuse/and your games partition, usersyncto copy your games over to their new partition and mount it wherever you like. Make sure to verify that they all copied over correctly and work as expected before deleting them from your home partition.Once you've got your new ssd installed, your new OS on it, and your games transferred to their new partition, mount your home partition on opensuse somewhere that's not
/homeitself...I like/mnt/home, but it doesn't really matter. Make your symlinks to your "content" folders (~/Documents,~/Music, etc.), and you're golden. Likewise, mount your new games partition somewhere (perhaps/mnt/games) and symlink it as well to wherever makes sense for your purposes.You can then go back to Kubuntu and move the mountpoint for your home partition, recreate a home directory for kubuntu (since you moved the mountpoint it will no longer have a
/homedirectory), and make your symlinks like you did for opensuse. You don't have to, though, unless you want to...having your home partition at/homeon Kubuntu and/mnt/homeon opensuse won't break anything or matter to either OS, but consistency is nice and can make it easier for you as the user.One last thing: make sure your users and groups match up between your OSs so each has permission to see your shared home directories. If your username is "murdoc" and your UUID is 1000 on Kubuntu, make sure that they're the same on opensuse. Likewise, make sure your user's primary group ID matches between your OSes as well. Use
usermodandgroupmodif necessary, but hopefully opensuse lets you specify a UUID when you set up your new user.I think I get it, thanks. Looks like I can just do this slowly, one step at a time, instead of one big operation I was expecting. I suppose one of my main concerns was how opensuse would react to there being an existing /home upon installation, but it's not going to just delete it because I told it to make its own. It counts as separate because it's on a different device, I just have to tell it where to mount on the new fs, right?
Another little thing: will opensuse just add itself to the my current grub config, or do I need to do anything fancy there?
Sounds like you've got it right. As long as you tell opensuse to mount your existing home directory somewhere besides
/homeyou'll be fine. Even if you do mount it at/homeit won't delete or overwrite it, you'll just get lots of conflicts with the "foreign" pre-existing configuration files. So yeah, mount it somewhere like/mnt/homeand opensuse will leave it alone and make its own/homedirectory on its own partition, and then you can symlink to your existing mounted partition.As for
grub, it depends on how you do it. If you go with the defaults you'll probably overwrite kubuntu'sgrubwith opensuse'sgrub. If so, opensuse will probably detect your kubuntu installation and make an entry for kubuntu. Especially if you're not planning on keeping kubuntu around long-term this'd be the way to go. It'll work if you want to keep kubuntu as well, but if you don't want to keep kubuntu around definitely go with this.Alternately, you could tell opensuse to not install
grubwhen you install it. This would leave kubuntu'sgrubinstalled and in charge, and then you'd go back into kubuntu and regenerategrub's configuration with theupdate-grubcommand and kubuntu'sgrubwill detect your new opensuse install and add a menu entry for opensuse. This will keep your boot experience the same except for your new opensuse option, but you'll have to keep kubuntu around since it's still in charge of your boot menu.Regardless of which option you choose, if you keep both operating systems installed you'll likely have to go into the os in charge of
gruband manually updategrubevery time you install a new kernel in the os that isn't in charge ofgrub. It's not hard, but it is another thing to remember.That's exactly what I needed. Thanks!
Glad to hear it. Good luck with your computer!
Oh, and make sure that when you're running opensuse's installer that you tell it to NOT format your "universal" home partition. And just to be safe, backup your data somewhere else before doing anything!
I will, thanks! ๐