[solved] Guest Additions upgrade from 6 to 7: guest doesn't boot

Discussions about using Windows guests in VirtualBox.
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benni
Posts: 11
Joined: 19. Dec 2015, 22:24

[solved] Guest Additions upgrade from 6 to 7: guest doesn't boot

Post by benni »

hi all,

i upgraded the guest additions on one of my win7 guests from 6.1.38 to 7.0.14. since then, it wasn't able to boot anymore and stopped pretty early in the process with the windows logo.

i read some topics in here already and understood that this happens with 3D support and/or activated "nested VT-x". i never had 3D support activated. and i played around with the options around PAE/NX, nested VT-x, nested paging and deactivated all peripherals like sound, network, usb. but still, the VM can't boot.

in the meantime i downgraded the GA on that guest to 6.1.38 via the windows safe mode during boot and the machine boots normally.

what could be the problem?

thanks and cheers
benni
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Last edited by benni on 9. Mar 2024, 00:13, edited 1 time in total.
BillG
Volunteer
Posts: 5102
Joined: 19. Sep 2009, 04:44
Primary OS: MS Windows 10
VBox Version: PUEL
Guest OSses: Windows 10,7 and earlier
Location: Sydney, Australia

Re: Guest Additions upgrade from 6 to 7: guest doesn't boot

Post by BillG »

I would remove the v6 GAs before upgrading, then fresh install the v7 GAs after the upgrade.

There are major differences in handling GAs between v6 and v7.
Bill
benni
Posts: 11
Joined: 19. Dec 2015, 22:24

Re: Guest Additions upgrade from 6 to 7: guest doesn't boot

Post by benni »

thanks for your reply, bill.

that didn't work BUT i played around some more... and it seems, i HAVE to add the 3D support component in the guest additions during the install. then the system boots even though i have no 3D support checked in the VM config. weird.. but works.

thanks
benni
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