# Unable to start service in VM "error while reading list of online CPUs"

**URL:** <https://discuss.aerospike.com/t/unable-to-start-service-in-vm-error-while-reading-list-of-online-cpus/4000>\
**Category:** Operations\
**Tags:** error\
**Created:** [March 28, 2017, 6:09am UTC](https://discuss.aerospike.com/t/unable-to-start-service-in-vm-error-while-reading-list-of-online-cpus/4000 "2017-03-28T06:09:58Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![umysql](https://avatars.discourse-cdn.com/v4/letter/u/9de053/32.png) [@umysql](https://discuss.aerospike.com/u/umysql)\
**Post date:** [March 28, 2017, 6:09am UTC](https://discuss.aerospike.com/t/unable-to-start-service-in-vm-error-while-reading-list-of-online-cpus/4000/1 "2017-03-28T06:09:58Z")

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Hello , I have installed successfully aerospike in my VM, But while starting that service getting error below. Envirnment : OS- centos6.8 64 bit error :

```auto
Starting and checking aerospike: Mar 28 2017 05:57:58 GMT: FAILED ASSERTION (cf:misc): (hardware.c:417) error while reading list of online CPUs
Mar 28 2017 05:57:58 GMT: WARNING (as): (signal.c:210) SIGUSR1 received, aborting Aerospike Community Edition build 3.12.0 os el6
/bin/bash: line 1: 24282 Aborted /usr/bin/asd --config-file /etc/aerospike/aerospike.conf

```

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**Author:** ![kporter](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.aerospike.com/kporter/32/515_2.png) [@kporter](https://discuss.aerospike.com/u/kporter)\
**Post date:** [March 28, 2017, 4:08pm UTC](https://discuss.aerospike.com/t/unable-to-start-service-in-vm-error-while-reading-list-of-online-cpus/4000/2 "2017-03-28T16:08:12Z")

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What type of VM are you using (virtualbox, vmware fusion, kvm, etc)?

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<div class="post-metadata">

**Author:** ![tlo](https://avatars.discourse-cdn.com/v4/letter/t/4da419/32.png) [@tlo](https://discuss.aerospike.com/u/tlo)\
**Post date:** [March 28, 2017, 5:47pm UTC](https://discuss.aerospike.com/t/unable-to-start-service-in-vm-error-while-reading-list-of-online-cpus/4000/3 "2017-03-28T17:47:01Z")

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Thanks for reporting this.

In addition what Kevin asked above, could you provide the output of the following command?

`sudo find /sys/devices/system`

From the error message, it looks like asd cannot find one or more entries under `/sys/devices/system`.

Thanks, Thomas