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DP

@add_iT said: Any idea how to check are nested virtualization are enable or disable on machine??

Try grep 'vmx\|svm' /proc/cpuinfo.

add_iT

@maverick said:

@add_iT said:
Out of topic, i am too lazy to create new thread so better ask here instead, and still related to BF/CM 2022 flash sale product

Any idea how to check are nested virtualization are enable or disable on machine??

With simple command

The command could be something like: egrep --color -i "svm|vmx" /proc/cpuinfo

If you see “vmx” (Intel-VT technology) or “svm” (AMD-V support) in the output, then nested virtualization is enabled, otherwise not.

@DP said:

@add_iT said: Any idea how to check are nested virtualization are enable or disable on machine??

Try grep 'vmx\|svm' /proc/cpuinfo.

Trying both but no result

root@xxx:~# egrep --color -i "svm|vmx" /proc/cpuinfo

root@xxx:~# grep 'vmx|svm' /proc/cpuinfo

angstrom

@add_iT said:

@maverick said:

@add_iT said:
Out of topic, i am too lazy to create new thread so better ask here instead, and still related to BF/CM 2022 flash sale product

Any idea how to check are nested virtualization are enable or disable on machine??

With simple command

The command could be something like: egrep --color -i "svm|vmx" /proc/cpuinfo

If you see “vmx” (Intel-VT technology) or “svm” (AMD-V support) in the output, then nested virtualization is enabled, otherwise not.

@DP said:

@add_iT said: Any idea how to check are nested virtualization are enable or disable on machine??

Try grep 'vmx\|svm' /proc/cpuinfo.

Trying both but no result

root@xxx:~# egrep --color -i "svm|vmx" /proc/cpuinfo

root@xxx:~# grep 'vmx|svm' /proc/cpuinfo

If no result, then this means that nested virtualization isn't enabled

If you want to manually check the relevant line yourself for "vmx" or "svm", do:

grep flags /proc/cpuinfo

ehab

is it still beef Friday?
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# ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## #
#              Yet-Another-Bench-Script              #
#                     v2022-12-04                    #
# https://github.com/masonr/yet-another-bench-script #
# ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## #

Thu 08 Dec 2022 11:59:45 AM EST

Basic System Information:
---------------------------------
Uptime     : 5 days, 2 hours, 2 minutes
Processor  : 11th Gen Intel(R) Core(TM) i9-11900K @ 3.50GHz
CPU cores  : 2 @ 3504.000 MHz
AES-NI     : ✔ Enabled
VM-x/AMD-V : ✔ Enabled
RAM        : 1.9 GiB
Swap       : 0.0 KiB
Disk       : 21.5 GiB
Distro     : Debian GNU/Linux 11 (bullseye)
Kernel     : 5.10.0-19-amd64

fio Disk Speed Tests (Mixed R/W 50/50):
---------------------------------
Block Size | 4k            (IOPS) | 64k           (IOPS)
  ------   | ---            ----  | ----           ----
Read       | 714.80 MB/s (178.7k) | 4.24 GB/s    (66.2k)
Write      | 716.69 MB/s (179.1k) | 4.26 GB/s    (66.6k)
Total      | 1.43 GB/s   (357.8k) | 8.50 GB/s   (132.9k)
           |                      |
Block Size | 512k          (IOPS) | 1m            (IOPS)
  ------   | ---            ----  | ----           ----
Read       | 4.72 GB/s     (9.2k) | 4.59 GB/s     (4.4k)
Write      | 4.98 GB/s     (9.7k) | 4.89 GB/s     (4.7k)
Total      | 9.70 GB/s    (18.9k) | 9.48 GB/s     (9.2k)

iperf3 Network Speed Tests (IPv4):
---------------------------------
Provider        | Location (Link)           | Send Speed      | Recv Speed                                                                                                                                                                   | Ping
-----           | -----                     | ----            | ----                                                                                                                                                                         | ----
Clouvider       | London, UK (10G)          | 814 Mbits/sec   | 121 Mbits/sec                                                                                                                                                                | 106 ms
Scaleway        | Paris, FR (10G)           | 816 Mbits/sec   | busy            | 110 ms
NovoServe       | North Holland, NL (40G)   | 813 Mbits/sec   | 663 Mbits/sec   | 112 ms
Uztelecom       | Tashkent, UZ (10G)        | 679 Mbits/sec   | 163 Mbits/sec   | 200 ms
Clouvider       | NYC, NY, US (10G)         | 824 Mbits/sec   | 380 Mbits/sec   | 39.5 ms
Clouvider       | Dallas, TX, US (10G)      | 865 Mbits/sec   | 941 Mbits/sec   | 1.69 ms
Clouvider       | Los Angeles, CA, US (10G) | 834 Mbits/sec   | 457 Mbits/sec   | 32.0 ms

Geekbench 5 Benchmark Test:
---------------------------------
Test            | Value
                |
Single Core     | 1701
Multi Core      | 3106
Full Test       | https://browser.geekbench.com/v5/cpu/19171434

HostCram KVM-2C

add_iT

@angstrom said:

@add_iT said:

@maverick said:

@add_iT said:
Out of topic, i am too lazy to create new thread so better ask here instead, and still related to BF/CM 2022 flash sale product

Any idea how to check are nested virtualization are enable or disable on machine??

With simple command

The command could be something like: egrep --color -i "svm|vmx" /proc/cpuinfo

If you see “vmx” (Intel-VT technology) or “svm” (AMD-V support) in the output, then nested virtualization is enabled, otherwise not.

@DP said:

@add_iT said: Any idea how to check are nested virtualization are enable or disable on machine??

Try grep 'vmx\|svm' /proc/cpuinfo.

Trying both but no result

root@xxx:~# egrep --color -i "svm|vmx" /proc/cpuinfo

root@xxx:~# grep 'vmx|svm' /proc/cpuinfo

If no result, then this means that nested virtualization isn't enabled

If you want to manually check the relevant line yourself for "vmx" or "svm", do:

grep flags /proc/cpuinfo

So here is full screnshot of my ticket to provider yesterday , it is from below from first image

So, me myself that look stupid or dumb here or the provider support that not know what is nested virtualization was

plumberg

@add_iT said:

@angstrom said:

@add_iT said:

@maverick said:

@add_iT said:
Out of topic, i am too lazy to create new thread so better ask here instead, and still related to BF/CM 2022 flash sale product

Any idea how to check are nested virtualization are enable or disable on machine??

With simple command

The command could be something like: egrep --color -i "svm|vmx" /proc/cpuinfo

If you see “vmx” (Intel-VT technology) or “svm” (AMD-V support) in the output, then nested virtualization is enabled, otherwise not.

@DP said:

@add_iT said: Any idea how to check are nested virtualization are enable or disable on machine??

Try grep 'vmx\|svm' /proc/cpuinfo.

Trying both but no result

root@xxx:~# egrep --color -i "svm|vmx" /proc/cpuinfo

root@xxx:~# grep 'vmx|svm' /proc/cpuinfo

If no result, then this means that nested virtualization isn't enabled

If you want to manually check the relevant line yourself for "vmx" or "svm", do:

grep flags /proc/cpuinfo

So here is full screnshot of my ticket to provider yesterday , it is from below from first image

So, me myself that look stupid or dumb here or the provider support that not know what is nested virtualization was

Whatever you are trying to accomplish with nested virtualization try it. If it doesn't work, stick it to the provider.

Why make a big deal of a trivial matter?

add_iT

@plumberg said:

@add_iT said:

@angstrom said:

@add_iT said:

@maverick said:

@add_iT said:
Out of topic, i am too lazy to create new thread so better ask here instead, and still related to BF/CM 2022 flash sale product

Any idea how to check are nested virtualization are enable or disable on machine??

With simple command

The command could be something like: egrep --color -i "svm|vmx" /proc/cpuinfo

If you see “vmx” (Intel-VT technology) or “svm” (AMD-V support) in the output, then nested virtualization is enabled, otherwise not.

@DP said:

@add_iT said: Any idea how to check are nested virtualization are enable or disable on machine??

Try grep 'vmx\|svm' /proc/cpuinfo.

Trying both but no result

root@xxx:~# egrep --color -i "svm|vmx" /proc/cpuinfo

root@xxx:~# grep 'vmx|svm' /proc/cpuinfo

If no result, then this means that nested virtualization isn't enabled

If you want to manually check the relevant line yourself for "vmx" or "svm", do:

grep flags /proc/cpuinfo

So here is full screnshot of my ticket to provider yesterday , it is from below from first image

So, me myself that look stupid or dumb here or the provider support that not know what is nested virtualization was

Whatever you are trying to accomplish with nested virtualization try it. If it doesn't work, stick it to the provider.

Why make a big deal of a trivial matter?

No big problem and deal here, i am just make sure that i am using the correct command or not or maybe me that wrong to check it there

They only just tell that they can't enable it, done and i will accept it

Problem is they tell it is already enable but the truth isn't so that make me confuse that maybe i wrongly to check it

plumberg

@add_iT said:

>

Problem is they tell it is already enable but the truth isn't so that make me confuse that maybe i wrongly to check it

This. If provider says it's enabled, trust them for a bit and see what you wanted to do.

This allows you to make a stronger case with the tech and ask for escalation. Plus when they enable virtualization typically you need to shutdown/ power off the server. Wait for a few moments and then boot it. All the above steps should happen successfully sequentially and then you may see the results you want.

Chances are provider is wrong but you can double check your sanity by doing what you were trying to do with nested virtualization and see how that goes through

maverick

@plumberg said:

@add_iT said:

>

Problem is they tell it is already enable but the truth isn't so that make me confuse that maybe i wrongly to check it

This. If provider says it's enabled, trust them for a bit and see what you wanted to do.

This allows you to make a stronger case with the tech and ask for escalation. Plus when they enable virtualization typically you need to shutdown/ power off the server. Wait for a few moments and then boot it. All the above steps should happen successfully sequentially and then you may see the results you want.

Chances are provider is wrong but you can double check your sanity by doing what you were trying to do with nested virtualization and see how that goes through

One really trivial issue could be... have you stopped and started your VPS from the control panel? Not just rebooted via ssh, but definitely via control panel. Stop, wait for some notification that VPS has stopped, then start again. Some of those parameters need to be picked the hard way, just rebooting won't suffice.

And also @plumberg has given you a good advice, if you want to run KVM inside KVM just try it and observe what happens. If you get any error, you have additional data to report to the provider. It could be that cpuinfo parsing is not that reliable and hidden somehow in your VPS.

add_iT

@plumberg said:

@add_iT said:

>

Problem is they tell it is already enable but the truth isn't so that make me confuse that maybe i wrongly to check it

This. If provider says it's enabled, trust them for a bit and see what you wanted to do.

This allows you to make a stronger case with the tech and ask for escalation. Plus when they enable virtualization typically you need to shutdown/ power off the server. Wait for a few moments and then boot it. All the above steps should happen successfully sequentially and then you may see the results you want.

Chances are provider is wrong but you can double check your sanity by doing what you were trying to do with nested virtualization and see how that goes through

Already done

I have rebooted it twice

The case that i said "do i must reboot it" and they said yes i did it from vps control panel

Actually it was from 2 days a go from last reply, and from their reply they are not too concern about that without cheked it first, they did not say "you must reboot your vm" or etc etc

Will try to check it again later and update the result, hope it work

@maverick said:

@plumberg said:

@add_iT said:

>

Problem is they tell it is already enable but the truth isn't so that make me confuse that maybe i wrongly to check it

This. If provider says it's enabled, trust them for a bit and see what you wanted to do.

This allows you to make a stronger case with the tech and ask for escalation. Plus when they enable virtualization typically you need to shutdown/ power off the server. Wait for a few moments and then boot it. All the above steps should happen successfully sequentially and then you may see the results you want.

Chances are provider is wrong but you can double check your sanity by doing what you were trying to do with nested virtualization and see how that goes through

One really trivial issue could be... have you stopped and started your VPS from the control panel? Not just rebooted via ssh, but definitely via control panel. Stop, wait for some notification that VPS has stopped, then start again. Some of those parameters need to be picked the hard way, just rebooting won't suffice.

And also @plumberg has given you a good advice, if you want to run KVM inside KVM just try it and observe what happens. If you get any error, you have additional data to report to the provider. It could be that cpuinfo parsing is not that reliable and hidden somehow in your VPS.

ok

I Already rebooted it twice from vps panel

But I will try again to explore and investigate it first and update later, hope it work

thanks for advice

DP

@add_iT said: I Already rebooted it twice from vps panel

Is your OS installed via ISO or their OS templates?

It might be worth trying to install via OS templates, CentOS 7 or whatever they have and check if the flags are there.

angstrom

@add_iT said: So, me myself that look stupid or dumb here or the provider support that not know what is nested virtualization was

Given the ticket exchange, my best guess would be that you and the support operator are talking past each other -- that what you mean by "nested virtualization" is not what he means by "virtualization" and that as a consequence, nested virtualization isn't activated on your VPS

Which OS are you using on your VPS? If Linux and the processor is Intel, what does the following show?

cat /sys/module/kvm_intel/parameters/nested

(If the processor is AMD, then use cat /sys/module/kvm_amd/parameters/nested )

add_iT

@DP said:

@add_iT said: I Already rebooted it twice from vps panel

Is your OS installed via ISO or their OS templates?

It might be worth trying to install via OS templates, CentOS 7 or whatever they have and check if the flags are there.

Installed Ubuntu 20 via template

And they using virtualizor i think it won't work, but i will try later when at home

@angstrom said:

@add_iT said: So, me myself that look stupid or dumb here or the provider support that not know what is nested virtualization was

Given the ticket exchange, my best guess would be that you and the support operator are talking past each other -- that what you mean by "nested virtualization" is not what he means by "virtualization" and that as a consequence, nested virtualization isn't activated on your VPS

Which OS are you using on your VPS? If Linux and the processor is Intel, what does the following show?

cat /sys/module/kvm_intel/parameters/nested

(If the processor is AMD, then use cat /sys/module/kvm_amd/parameters/nested )

That is what i though at first

Thats why i ask wether i am wrong about how or what methode to check it

ever had experience once before with another provider, and simple reboot will just change it when they said already activated

Btw this is ubuntu 20

and the result are

cat: /sys/module/kvm_intel/parameters/nested: No such file or directory

maverick

@angstrom said:

@add_iT said: So, me myself that look stupid or dumb here or the provider support that not know what is nested virtualization was

Given the ticket exchange, my best guess would be that you and the support operator are talking past each other -- that what you mean by "nested virtualization" is not what he means by "virtualization" and that as a consequence, nested virtualization isn't activated on your VPS

Which OS are you using on your VPS? If Linux and the processor is Intel, what does the following show?

cat /sys/module/kvm_intel/parameters/nested

(If the processor is AMD, then use cat /sys/module/kvm_amd/parameters/nested )

Those can be consulted only on the host server, where kvm module is activated. It is what tells the kvm module to pass CPU virtualization capabilities downstream, to the guest machines.

angstrom

@maverick said:

@angstrom said:

@add_iT said: So, me myself that look stupid or dumb here or the provider support that not know what is nested virtualization was

Given the ticket exchange, my best guess would be that you and the support operator are talking past each other -- that what you mean by "nested virtualization" is not what he means by "virtualization" and that as a consequence, nested virtualization isn't activated on your VPS

Which OS are you using on your VPS? If Linux and the processor is Intel, what does the following show?

cat /sys/module/kvm_intel/parameters/nested

(If the processor is AMD, then use cat /sys/module/kvm_amd/parameters/nested )

Those can be consulted only on the host server, where kvm module is activated. It is what tells the kvm module to pass CPU virtualization capabilities downstream, to the guest machines.

Okay, here's my reasoning:

It's true, of course, that the host machine needs to have nested virtualization activated for the guests and accordingly, if one wants to consult the value of /sys/module/kvm_intel/parameters/nested on the host machine, one can do this only on the host machine

At the same time, a guest machine may also have a positive value for /sys/module/kvm_intel/parameters/nested, which can be consulted on the guest machine

As an example, I have a VPS that allows for nested virtualization (i.e., shows flag vmx) and within the VPS, cat /sys/module/kvm_intel/parameters/nested shows a positive value

I have another VPS that doesn't allow for nested virtualization (i.e., doesn't show flag vmx) and within the VPS, cat /sys/module/kvm_intel/parameters/nested fails because the module kvm_intel is missing

In short, here's the idea:

• On the guest machine (the VPS), try to do: sudo modprobe kvm_intel . This will fail if nested virtualization is not activated for the guest machine

Advin

@angstrom said:

@maverick said:

@angstrom said:

@add_iT said: So, me myself that look stupid or dumb here or the provider support that not know what is nested virtualization was

Given the ticket exchange, my best guess would be that you and the support operator are talking past each other -- that what you mean by "nested virtualization" is not what he means by "virtualization" and that as a consequence, nested virtualization isn't activated on your VPS

Which OS are you using on your VPS? If Linux and the processor is Intel, what does the following show?

cat /sys/module/kvm_intel/parameters/nested

(If the processor is AMD, then use cat /sys/module/kvm_amd/parameters/nested )

Those can be consulted only on the host server, where kvm module is activated. It is what tells the kvm module to pass CPU virtualization capabilities downstream, to the guest machines.

Okay, here's my reasoning:

It's true, of course, that the host machine needs to have nested virtualization activated for the guests and accordingly, if one wants to consult the value of /sys/module/kvm_intel/parameters/nested on the host machine, one can do this only on the host machine

At the same time, a guest machine may also have a positive value for /sys/module/kvm_intel/parameters/nested, which can be consulted on the guest machine

As an example, I have a VPS that allows for nested virtualization (i.e., shows flag vmx) and within the VPS, cat /sys/module/kvm_intel/parameters/nested shows a positive value

I have another VPS that doesn't allow for nested virtualization (i.e., doesn't show flag vmx) and within the VPS, cat /sys/module/kvm_intel/parameters/nested fails because the module kvm_intel is missing

In short, here's the idea:

• On the guest machine (the VPS), try to do: sudo modprobe kvm_intel . This will fail if nested virtualization is not activated for the guest machine

There's also a package called cpu-checker which has a command called kvm-ok, it should tell you if nested virtualization is enabled too.

add_iT

Ok I have tried any method but still not successful

Reinstall, stop for a minutes then start it, reboot for a few times, etc but still disabled

VM-x/AMD-V : ❌ Disabled

angstrom

@add_iT said:
Ok I have tried any method but still not successful

Reinstall, stop for a minutes then start it, reboot for a few times, etc but still disabled

VM-x/AMD-V : ❌ Disabled

As I tried to say above, my guess is that the support operator didn't understand what you were talking about

visualwebtechnologies

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MS said:
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ariq01

MS said:
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ehab

@galfond said:
ThankYouFAT32