OS/2, eCS & ArcaOS - Technical > Setup & Installation
Dual (or tripple) booting ArcaOS and FreeDOS?
Johann 'Myrkraverk' Oskarsson:
Ok, so I hit another snag. It seems my ArcaOS installation did not fix the MBR, which previously, and still, has GRUB.
So when I try to boot from the hard disk to continue with the installation, I get a grub error because it doesn't recognize the file system(s).
How do I fix this?
Dave Yeo:
--- Quote from: Johann 'Myrkraverk' Oskarsson on December 26, 2020, 02:19:32 am ---Ok, so I partitioned the machine in the following way.
--- Code: --- 2,000 unformatted Primary
2,000 unformatted Primary
->C: 5,005 unformatted Primary Startable
->F: 29,147 unformatted Logical Advanced/LVM
--- End code ---
--- End quote ---
While installing ArcaOS in the 3rd primary as C: will work, I would have made it a Logical and perhaps E: That way after booting AOS, one of the DOS partitions can be C: and from what Roderick said, even the 2nd one could have been a Logical and not C: for FreeDos. (I have no experience with FreeDos)
Who knows, maybe you will want to try one of the Dos's under AOS instead of its included DOS. You could even have all 3 running in individual VDM's on the desktop if you chose and your graphics card is happy displaying a VDM on the desktop (not all are)
I hope this will work for a tripple boot system. I am currently installing ArcaOS right now, in C: and F: as above. Let's see how that works out. I can do this as many times as I need.
Dave Yeo:
--- Quote from: Johann 'Myrkraverk' Oskarsson on December 26, 2020, 02:22:24 am ---Ok, so I hit another snag. It seems my ArcaOS installation did not fix the MBR, which previously, and still, has GRUB.
So when I try to boot from the hard disk to continue with the installation, I get a grub error because it doesn't recognize the file system(s).
How do I fix this?
--- End quote ---
IIRC, there is an option for installing airboot in the LVM that you can run from maintenance mode from the stick. Might be in the disk checker.
If ever want to dual boot Linux too, ideally you also create the partitions from AOS, including /boot and install grub there.
Johann 'Myrkraverk' Oskarsson:
Thank you, that did the trick.
The volume manager said nothing about Airboot, so I wasn't sure, but that's what shows up when I boot from the hard disk. The ArcaOS installation is continuing now. Hopefully smoothly.
Johann 'Myrkraverk' Oskarsson:
--- Quote from: Dave Yeo on December 26, 2020, 02:40:34 am ---IIRC, there is an option for installing airboot in the LVM that you can run from maintenance mode from the stick. Might be in the disk checker.
If ever want to dual boot Linux too, ideally you also create the partitions from AOS, including /boot and install grub there.
--- End quote ---
I have no plans to install Linux on this machine; and given the partition layout previously, I probably can't now. The GRUB was just a leftover from the Linux installation previously on the machine, before I got my hands on it.
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