# I can't run Dockers with FireCracker

**URL:** <https://forum.opennebula.io/t/i-cant-run-dockers-with-firecracker/10350>\
**Category:** Product Support\
**Created:** [February 21, 2022, 2:27pm UTC](https://forum.opennebula.io/t/i-cant-run-dockers-with-firecracker/10350 "2022-02-21T14:27:00Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Tetley](https://avatars.discourse-cdn.com/v4/letter/t/edb3f5/32.png) [@Tetley](https://forum.opennebula.io/u/Tetley)\
**Post date:** [February 21, 2022, 2:27pm UTC](https://forum.opennebula.io/t/i-cant-run-dockers-with-firecracker/10350/1 "2022-02-21T14:27:00Z")

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Hello guys !

I’m new on OpenNebula and after succefully implement Vcenter in my OpenNebula i want to level up and add an FireCracker hypervisor for running Docker containers.  
I followed the OpenNebula doc, my FrontEnd communicate well with my FireCracker Node (in passwordless SSH). I succefuly add my FireCracker Host in Sunstone, I see my Ram and CPU.  
The problem begin with the Datastores, I add an [Images] et [Files] Datastores on the FireCracker Host, but when I try to add an [System] Datastore i don’t see his capacity .

 ![image](https://canada1.discourse-cdn.com/flex031/uploads/opennebula/original/2X/9/9f291385467a2c8ac73bcd8fbfa412a6a17d2b39.png)

I try to add it in [share mode] and this time it’s working

 ![Capture](https://canada1.discourse-cdn.com/flex031/uploads/opennebula/original/2X/d/df6be0da974c16dd6c65c1c54b264d79dd146fb2.png)

But when I Instantiate a VM from a template, once again, following the doc. My freshly instantiate VM never run, keep pending again and again.

So if somebody had a similare issue, every informations will be helpful.

Thanks

Infos :  
Firecracker NODE : HP Proliant G6 - Alma Linux 8 and firecracker  
FrontEnd : HP Proliant G6 - ESXI 6.5 - vOneCloud.ova  
Use SSH for interconnexion  
Use local storage of the FireCracker Node for containers

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**Author:** ![ahuertas](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.opennebula.io/ahuertas/32/7487_2.png) [@ahuertas](https://forum.opennebula.io/u/ahuertas)\
**Post date:** [February 23, 2022, 9:09am UTC](https://forum.opennebula.io/t/i-cant-run-dockers-with-firecracker/10350/2 "2022-02-23T09:09:34Z")

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Hello @Tetley,

Please check that your VM has no special SCHED\_REQUIREMENT, you can also check `/var/log/one/sched.log` to see scheduling errors.

Best,  
Álex.

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**Author:** ![Tetley](https://avatars.discourse-cdn.com/v4/letter/t/edb3f5/32.png) [@Tetley](https://forum.opennebula.io/u/Tetley)\
**Post date:** [February 23, 2022, 1:57pm UTC](https://forum.opennebula.io/t/i-cant-run-dockers-with-firecracker/10350/3 "2022-02-23T13:57:26Z")

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Hello @ahuertas

I checked and my VM (Debian found on the DockerHub) don’t have SCHED\_REQUIREMENTS

But now i have this error :

> Blockquote  
> Driver Error  
> Wed Feb 23 13:44:44 2022: Error executing image transfer script: INFO: clone: Cloning /home/OpenNebula/164/102294766cba48eb2ba304862bbfbea0 in /home/OpenNebula//166/57/disk.0 ERROR: clone: Command " set -e -o pipefail if [-d “/home/OpenNebula/164/102294766cba48eb2ba304862bbfbea0.snap”]; then SRC\_SNAP=“102294766cba48eb2ba304862bbfbea0.snap” fi tar -C /home/OpenNebula/164 --transform=“flags=r;s|102294766cba48eb2ba304862bbfbea0|disk.0|” -cSf - 102294766cba48eb2ba304862bbfbea0 $SRC\_SNAP | ssh 172.20.100.145 “tar -xSf - -C /home/OpenNebula//166/57"” failed: tar: /home/OpenNebula/164: Cannot open: No such file or directory tar: Error is not recoverable: exiting now tar: This does not look like a tar archive tar: Exiting with failure status due to previous errors Error copying /home/OpenNebula/164/102294766cba48eb2ba304862bbfbea0 to 172.20.100.145:/home/OpenNebula//166/57/disk.0

The /home/OpenNebula/164/ represent my [Images] Datastore found on my FireCracker Node.  
The /home/OpenNebula//166/ represent my [System] Datastore found on my FireCracker Node.

If i understand well, my datastore [Images] and my datastore [System] who are on the same host, don’t communicate well together. Once again i think that the problem is the [System] datastores of my FireCracker host who is faulty.

Do you think that i should reinstall my FireCracker Node or something is wrong with my FrontEnd configuration ?

Thank you

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<div class="post-metadata">

**Author:** ![ahuertas](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.opennebula.io/ahuertas/32/7487_2.png) [@ahuertas](https://forum.opennebula.io/u/ahuertas)\
**Post date:** [February 25, 2022, 8:05am UTC](https://forum.opennebula.io/t/i-cant-run-dockers-with-firecracker/10350/4 "2022-02-25T08:05:46Z")

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Hello @Tetley,

Before reinstalling I would check that everything is in place:

- Check that the file `/home/OpenNebula/164/102294766cba48eb2ba304862bbfbea0` is correct.
- Run the command manually with `set -x`
- Check that host and datastore are correctly monitored.
- Check `/var/log/one/oned.log` to see if there are any other errors.

Best,  
Álex.