[openstack-dev] [nova] Boot from volume 's instance of rescue operation
jazeltq at gmail.com
Thu Dec 28 02:51:58 UTC 2017
2017-12-27 20:41 GMT+08:00 Jay Pipes <jaypipes at gmail.com>:
> On 12/27/2017 05:34 AM, 李杰 wrote:
>> As we all known,Now the boot from volume 's instance of rescue
>> operation is invalid.
>> To solve it,I have two plans.
>> 1.I plan to use the rescue_image as the root disk,and then make
>> the original root volume as the second disk to create new domain,in other
>> words,the rescued instance is boot from image.Finally,the user can repair
>> the rescued instance.
>> 2.I plan to transform the rescue_image to a volume,then make this
>> volume as the first disk,and make the original root volume as the second
>> disk to create new domain,in other words,the rescued instance is boot from
>> volume.Finally,the user can repair the rescued instance.
>> Can you give me some advice?Help in troubleshooting this issue
>> will be appreciated.
> Hi Rambo,
> I would not advise either of the above plans. This is yet another problem
> with boot-from-volume.
> A better use of your time would be to split the original giant volume into
> the operating system part and the application data part. Make the
> application data part into a normal non-bootable volume and use a regular
> operating system image as your root/boot partition.
> You can't build a palace on quicksand.
Actually, this is not a like what your said. I think we should judge
the type of instance.
If it is boot from image, then go original. If it is boot from volume,
then the image must be a
bootable volume. This is more make sense.
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