Running XenServer from a USB Drive
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Hi I am back with a new help request :).
Currently working on a project in which i need to upgrade my XenServer 6.5 to Latest xenserver 7.
I am planning to run the xenserver from a usb drive. just wanted to know if anyone have tried this.Thanks,
Ajin -
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Hey , Thanks for that .
Giving it a try now .:) -
Tried the same and created a USB Drive with Xen 7 .
But when trying to boot from it failes,Any suggetions for making a live Xenserver 7 from a 32 Gig USB Drive .
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@Ajin said in Running Xen Server from a USB Drive.:
Tried the same and created a USB Drive with Xen 7 .
But when trying to boot from it failes,Any suggetions for making a live Xenserver 7 from a 32 Gig USB Drive .
Make sure you have the USB as an active boot device in BIOS, for XS7 if you arent upgrading, you need a 32GB USB drive at minimum. Just install and go.
Nothing special required.
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I have a workstation (Dell T3500) that runs XS7 now, and it will only boot from the rear USB ports.
Double check the BIOS boot options maybe.
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@Ajin said in Running Xen Server from a USB Drive.:
Tried the same and created a USB Drive with Xen 7 .
But when trying to boot from it failes,Any suggetions for making a live Xenserver 7 from a 32 Gig USB Drive .
You need at least 46GB to install fresh. Try a 64GB stick.
Otherwise it will not show up on the install screen.
Or are you upgrading directly from 6.5 on USB? I was a little confused by your post.
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@BRRABill said in Running Xen Server from a USB Drive.:
@Ajin said in Running Xen Server from a USB Drive.:
Tried the same and created a USB Drive with Xen 7 .
But when trying to boot from it failes,Any suggetions for making a live Xenserver 7 from a 32 Gig USB Drive .
You need at least 46GB to install fresh. Try a 64GB stick.
Otherwise it will not show up on the install screen.
Or are you upgrading directly from 6.5 on USB? I was a little confused by your post.
Yeah I thought I recalled someone saying that fresh installs now required the use of a 64 GB stick/card.
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@Dashrender said in Running Xen Server from a USB Drive.:
@BRRABill said in Running Xen Server from a USB Drive.:
@Ajin said in Running Xen Server from a USB Drive.:
Tried the same and created a USB Drive with Xen 7 .
But when trying to boot from it failes,Any suggetions for making a live Xenserver 7 from a 32 Gig USB Drive .
You need at least 46GB to install fresh. Try a 64GB stick.
Otherwise it will not show up on the install screen.
Or are you upgrading directly from 6.5 on USB? I was a little confused by your post.
Yeah I thought I recalled someone saying that fresh installs now required the use of a 64 GB stick/card.
That was probably me.
Don't you remember your trip out to the store to pick up a USB stick?
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@BRRABill said in Running Xen Server from a USB Drive.:
@Dashrender said in Running Xen Server from a USB Drive.:
@BRRABill said in Running Xen Server from a USB Drive.:
@Ajin said in Running Xen Server from a USB Drive.:
Tried the same and created a USB Drive with Xen 7 .
But when trying to boot from it failes,Any suggetions for making a live Xenserver 7 from a 32 Gig USB Drive .
You need at least 46GB to install fresh. Try a 64GB stick.
Otherwise it will not show up on the install screen.
Or are you upgrading directly from 6.5 on USB? I was a little confused by your post.
Yeah I thought I recalled someone saying that fresh installs now required the use of a 64 GB stick/card.
That was probably me.
Don't you remember your trip out to the store to pick up a USB stick?
Yes, yes i do..
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@BRRABill : Will give it a try again with 64 Gig disk.Currently my xen 6.5 is on an HP server Inbuilt HDD. I am planning of upgrading to Xen 7 & and also move it to usb.
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@travisdh1 :Yes tried that too , Dint help
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What's your current status on this? Issues with the install itself?
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yes , I am stuck with running Xen from the USB . still working on it .
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@Ajin said in Running Xen Server from a USB Drive.:
yes , I am stuck with running Xen from the USB . still working on it .
What is the error that you are getting?
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@Ajin said in Running Xen Server from a USB Drive.:
@BRRABill : Will give it a try again with 64 Gig disk.Currently my xen 6.5 is on an HP server Inbuilt HDD. I am planning of upgrading to Xen 7 & and also move it to usb.
The book I'm reading specifically says not to install to USB stick...
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@Dashrender said in Running Xen Server from a USB Drive.:
@Ajin said in Running Xen Server from a USB Drive.:
@BRRABill : Will give it a try again with 64 Gig disk.Currently my xen 6.5 is on an HP server Inbuilt HDD. I am planning of upgrading to Xen 7 & and also move it to usb.
The book I'm reading specifically says not to install to USB stick...
Did they give a reason?
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Yeah because the lack of trim support will slow the disk down a lot. And lack or wear leveling.
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@Dashrender said in Running Xen Server from a USB Drive.:
Yeah because the lack of trim support will slow the disk down a lot. And lack or wear leveling.
That makes some weird assumptions..... like that speed is relevant and that you will have writes sent to the USB stick. So based on that reasoning, I think that it is a false recommendation. It's the same as all the recommendations ever... don't run Xen (or anything) from USB unless you make it non-writing. Or at least non-writing for things like logs.
So given that they explained why and it obviously doesn't apply. We can safely take that as a null recommendation.
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@scottalanmiller I Have installed the OS to a Usb stick , and when trying to boot up with it , The usb stick with the os is not being detected, Tried this with multiple machines and usb sticks
