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Not able to detach Cinder Root Volume from an instance

asked 2014-11-27 03:46:07 -0600

Hi I hav installed JUNO on CentOS7 using document available on . I could successfully create an instance. However when I try to resize the Root disk, it does not allow me to detach root disk. It says Unable to detach Root disk"

Any pointers: Regards

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answered 2014-12-02 16:31:06 -0600

mpetason gravatar image

Do you have a use case where you need to resize a root disk? Point being, you probably don't want to resize a root disk. The Cloud is throwaway, if you mess up on an instance then launch a new one. If you have created the best configuration of CentOS ever, create a snapshot, use it as a new image for future instances.

Resizing down will not work. Resizing when you boot from a Volume might have issues. Since you are running into "detach" issues I'm assuming you launched from a volume.

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Thanks for reply. Yes, I launched instance from a Cinder Volume. Normally when user upgrade to higher package then atleast it will be better if Volume gets expand. You are right that resizing disk can create a mess.

Thanks again.

NeeleshG gravatar imageNeeleshG ( 2014-12-02 21:43:40 -0600 )edit

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Asked: 2014-11-27 03:46:07 -0600

Seen: 864 times

Last updated: Dec 02 '14