OS/2, eCS & ArcaOS - Technical > Setup & Installation
AOS 5.1 and Windows 7 EFI and legacy - how to dual boot
(1/1)
Doug Clark:
I have a laptop (thinkpad 530) which had AOS 5.0x and Windows 7 installed with Air Boot for switching between the two. They are both installed on a MBR drive and using legacy bios. The problem was Win-OS/2 programs did not run in AOS on this machine.
So I "upgraded" to v AOS 5.1. My BIOS has a setting for: UEFI, Legacy, or Both. I first tried switching the BIOS to both, and installing AOS v 5.1 as an upgrade to my existing system. That did not fix the Win-OS/2 issue. So I switched the bios to UEFI only, and performed a new install of AOS 5.1 on top of my existing C: partition - which contained the old AOS 5.0x. The install program wants a EFI partition and complained about not enough primary partitions - I already had 3: one for the AOS v 5.0x, one I assume for Win 7, and a third for who knows what. So I deleted the smallest partition (300mb), created an EFI partition and the installation was able to continue. I did not change the drive from MBR.
And Win-OS/2 now works. Yeah.
I would like to now be able to boot into my already existing Win7 partition/system. I am assuming it is the 93MB primary partition that shows up in Simple LVM.
Anybody have any ideas?
Pete:
Hi Doug
Possibly a read of https://www.os2world.com/forum/index.php/topic,3425.0.html, aka UEFI: Dual Boot - Windows 11 and ArcaOS 5.1, along with https://www.os2world.com/forum/index.php/topic,3466.msg41660.html#msg41660, aka Booting eCS and MCP under UEFI, will be of help.
Regards
Pete
Doug Clark:
Thanks for the reply Peter.
I have read them both, and they are for slightly different situations than my issue. The solution turned out to be:
1) Switch BIOS to UEFI only
1) Boot to AOS -
2) Open the Logical Volume Manager - Simple
3) On the menu go to System - Boot Menu - Install/update
4) Select Air Boot on the drop down for "Boot menu program"
5) Click on Install and reboot
6) Set BIOS to Legacy Only
7) Select Windows 7 on the Air Boot menu.
It boots to Windows. To boot to AOS
1) switch BIOS to UEFI Only
2) Select AOS from the AN Launcher
Kudos to the AOS team - excellent job.
See ya at Warpstock
Martin's post ws
Pete:
Hi Doug
If you need to boot win7 frequently you could consider re-installing win7 in uefi mode. That would cut out the need to use BIOS to switch between modes/os's.
Regards
Pete
Navigation
[0] Message Index
Go to full version