Solved

How to change the BIOS time on a Hyper-v guest vm without changing host's time?

Posted on 2010-09-05
4
6,127 Views
Last Modified: 2012-05-10
For testing purpose I need to modify the date/time in the BIOS of a virtual machine created on hyper-v server but always failed.
After some searching, it seems like there is no way I can do it unless I modify the host's date/time which I don't want to.
Can someone tell me how to do it withouth changing the time on hyper-v host server?
Thanks
0
Comment
Question by:brothertu
4 Comments
 
LVL 6

Expert Comment

by:Joshua_Peters
ID: 33608007
When you boot up the guest you should be able to enter the bios during startup. Then you can change the bios time without changing it on the host. Change the post delay time in the os so it allows you to have time to see which key it is to access the Bios.
0
 
LVL 5

Accepted Solution

by:
shanyuen earned 250 total points
ID: 33608537
http://www.experts-exchange.com/Software/Virtualization/Q_24166919.html
http://www.markwilson.co.uk/blog/2009/02/hyper-v-qa.htm

Hyper-V VMs do still have a virtual machine BIOS; however, all of the BIOS features (e.g. numlock setting, boot device order, etc.) may be set in the virtual machine configuration or using a script. As a conseqence of this, Microsoft has removed the ability to access the BIOS at boot time.
0
 
LVL 13

Expert Comment

by:Greg Hejl
ID: 33610893
in hyper v manager - click on vm - open settings - go to integration services for vm (bottom left) - turn off time synchronization -
 login to vm - open services,  stop Hyper-V time synchronization service - change to manual -
 go to vm control panel > date and time >turn off internet time setting - change time and date on vm
0
 
LVL 1

Author Comment

by:brothertu
ID: 33617524
thanks for all the replies.
Joshua,
I can't enter the BOIS setting from bootup, tried several keys: F2,F10,Esc, Del.

Greg,
My problem is that, there is no OS installed on the virtual machine. And I need to change the BIOS time before install OS.

Shanyuen:
Although the news from your link is negtive but I guess this might be the truth that there is no way to get into vm BIOS during bootup. I wonder if you have seen any official clarificaition from Microsoft?

0

Featured Post

U.S. Department of Agriculture and Acronis Access

With the new era of mobile computing, smartphones and tablets, wireless communications and cloud services, the USDA sought to take advantage of a mobilized workforce and the blurring lines between personal and corporate computing resources.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Last article we focus in how to VMware: How to create and use VMs TAGs – Part 1 so before follow this article and perform the next tasks, you should read the first article how to create the TAG before using them in Veeam Backup Jobs.
Veeam Backup & Replication has added a new integration – Veeam Backup for Microsoft Office 365.  In this blog, we will discuss how you can benefit from Office 365 email backup with the Veeam’s new product and try to shed some light on the needs and …
To efficiently enable the rotation of USB drives for backups, storage pools need to be created. This way no matter which USB drive is installed, the backups will successfully write without any administrative intervention. Multiple USB devices need t…
This tutorial will show how to configure a single USB drive with a separate folder for each day of the week. This will allow each of the backups to be kept separate preventing the previous day’s backup from being overwritten. The USB drive must be s…

911 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

16 Experts available now in Live!

Get 1:1 Help Now