OS2 World Community Forum

OS/2, eCS & ArcaOS - Technical => Setup & Installation => Topic started by: Martin Iturbide on September 23, 2015, 05:53:55 pm

Title: 1TB HDD and GUID Partiton Table
Post by: Martin Iturbide on September 23, 2015, 05:53:55 pm
Hi.

I preferred to do a new thread since my case is a little bit different. I want to have dual boot Win10 and eCS 2.2.
Now I'm stuck on the GUID Partition Table (GPT) error for both disks (1TB and 16GB).

Here I post some screenshots of the eCS 2.2 Installer error and a Partition Mess I have in Windows.

There is not easy way out, right? Do I need to wipe everything, create partitions with eCS, and install eCS first and after that install Win10?

I also wonder (just wonder, I know it is hard to fix) which drivers should be updated or created to have "GPT Friendly" eCS. 

Regards
Title: Re: 1TB HDD and GUID Partiton Table
Post by: Dave Yeo on September 24, 2015, 04:45:35 am
I don't think there is such a thing as GPT friendly eCS so you have to start all over with old style MBR, dothe partitioning in eCS (or with DFSee) and first install eCS. I'm sure someone who has actually done this expand on these directions.
Title: Re: 1TB HDD and GUID Partiton Table
Post by: Michael Holzapfel on September 24, 2015, 11:56:46 am
Arca Noae has this on the roadmap for long term. See https://www.arcanoae.com/roadmap/ (https://www.arcanoae.com/roadmap/)

Maybe they can provide a status....
Michael
Title: Re: 1TB HDD and GUID Partiton Table
Post by: Dave Yeo on September 24, 2015, 05:21:06 pm
I also wonder (just wonder, I know it is hard to fix) which drivers should be updated or created to have "GPT Friendly" eCS. 

Misread this the first time.
For a data drive, there could just be a filter driver which translates the GPT table to regular MBR layout and perhaps an updated LVM driver or perhaps the filter can also take care of the LVM info as well. This approach still leaves the 2TB drive limit but larger drives can be split into multiple drives.
For booting, I'd guess os2ldr, as well as LVM and the actual DASD drivers. Probably still stuck with the 2TB limit as the kernel itself only knows CHS layout so some filtering would be needed.