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Thank you very much. Finially it's fixed. Just a weird thing, I changed the parameters wth the vboxmanage.exe guestproperty set command, and I checked the .vbox file, it has been changed. BUT when I start the virtual machine, the .vbox file was replaced with a wrong one, the one before I change . I ...

Maybe I got the answer, my host is Windows 11, it's not on the support list. ref: https://forums.virtualbox.org/viewtopic.php?f=3&t=55757&p=257652&hilit=VbglR3GetHostTime#p257652 Windows hosts (64-bit): Windows 8.1 Windows 10 RTM (1507 / 2015 LTSB) build 10240 Windows 10 Anniversary Upda...

I checked this post https://forums.virtualbox.org/viewtopic.php?t=90233 and noticed I didn't install additional pack on client. after I installed the pack on client (CentOS 7.9), I can find some sync information, but got error like Apr 05 23:01:47 mysql06 kernel: 15:01:47.829394 timesync Error: vgsv...

Did you restart the VBoxService after setting the Guest Properties ? ;) Thanks reply. I did that, nothing happened. I checked the log , save-state, and then start. 00:00:03.692672 Changing the VM state from 'LOADING' to 'SUSPENDED' 00:00:03.692754 Changing the VM state from 'SUSPENDED' to 'RESUMING...

Thanks scottgus1. The sync time is just for save-state and then start. if I reboot the vm , the vm time is same with host, but what I want is after save state and then start it. Say I put my notebook sleep 2 hours, and then open it, the host time is right, but vm time is 2 hours behind. I think the ...

setting: cd C:\Program Files\Oracle\VirtualBox .\vboxmanage.exe guestproperty set "testlinux7" "/VirtualBox/GuestAdd/VBoxService/--timesync-interval" 10000 .\vboxmanage.exe guestproperty set "testlinux7" "/VirtualBox/GuestAdd/VBoxService/--timesync-min-adjust"...