Migrating from Gentoo to Sabayon

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rdav
Baby Hen
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Joined: Fri Oct 26, 2018 2:32

Migrating from Gentoo to Sabayon

Post by rdav » Fri Oct 26, 2018 2:40

Hi All

What would be the steps to migrate a Gentoo install over to Sabayon with out having to start from scratch?

I have been Gentoo user for some 5 years so pretty familiar with portage and emerge, just wish to make my life simpler.

thanks in advance!

- Russell

Stupot
Sagely Hen
Posts: 1680
Joined: Wed Feb 14, 2007 3:44
Location: St. Louis, MO, USA

Re: Migrating from Gentoo to Sabayon

Post by Stupot » Fri Oct 26, 2018 16:11

Truthfully, you'd be in for a world of unknown trouble if you attempt to migrate that way. Even if you managed to migrate successfully, any time a future issue comes up, you'd always wonder if it was some lingering effect of migrating instead of just doing a clean install.

The better plan of attack is to save off your home partition and data and do a fresh install.

rdav
Baby Hen
Posts: 2
Joined: Fri Oct 26, 2018 2:32

Re: Migrating from Gentoo to Sabayon

Post by rdav » Thu Nov 08, 2018 2:04

Hi Stupot

thanks for your reply!
Seems its the best way to go, a clean install

After reading a bit on Sabayon, I was thinking doing it this way:
Prior to blowing away Gentoo (back it up to a removable USB harddrive):
1) Saving the world file from my Gentoo box to a different name ie world.sabayon
2) Editing world.sabayon to something that resembles the desktop applications and tools I use
3) Using the world.sabayon as a template to install extra applications not covered in the install DVD

Backing up Gentoo and Data
4) Backup /boot and / to USB Harddrive
5) Backup /home to USB Hardrive

Installing Sabayon
6) Prepare USB memory stick to boot into Sabayon, and test
7) reboot with Sabayon on USB memory stick previously prepared
8) test the install so see if partition manager accepts existing partitions
9) if not, then adjust with gparted and restart
10) if partitions are good to go, continue install to completion and rebooting into Sabayon

later when running Sabayon and network up
11) use world.sabayon that was created from Gentoo in 2) to add additional packages with Rigo <--- this step I don't know!

Is there a way of adding a file with package names to Rigo or Entropy?
Anything else I may have missed here?

thanks again,

R

Stupot
Sagely Hen
Posts: 1680
Joined: Wed Feb 14, 2007 3:44
Location: St. Louis, MO, USA

Re: Migrating from Gentoo to Sabayon

Post by Stupot » Thu Nov 08, 2018 20:24

So, Sabayon supports two different package management systems:
1) Portage, where the world file would come into play, all the same as Gentoo + Sabayon overlay.
2) Entropy, which is a binary package management that is built off of portage.

If you do any portage customizing, you will cause problems on a system that has entropy packages installed. All packages in entropy are pre-compiled with a certain set of USE flags, and if yours differ, things will go wonky.

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