{"id":1222,"date":"2018-11-16T16:30:15","date_gmt":"2018-11-16T11:00:15","guid":{"rendered":"https:\/\/liai.co.in\/blog\/?p=436"},"modified":"2022-01-21T03:36:56","modified_gmt":"2022-01-21T03:36:56","slug":"aws-detach-root-volume-from-an-ec2-instance","status":"publish","type":"post","link":"https:\/\/www.liainfraservices.com\/blog\/aws-detach-root-volume-from-an-ec2-instance\/","title":{"rendered":"How to detach root volume from Amazon EC2 instance?"},"content":{"rendered":"<\/span> 3<\/span> min read<\/span><\/span>
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<\/h6>\n

Question<\/span>: How to detach root volume from the Amazon EC2<\/a> instance?<\/em><\/strong><\/h2>\n

Answer<\/span>:<\/strong> There could be multiple different reasons, but I generally do that to troubleshoot the booting issue, it could be related to some BCD error or some driver related or some service not starting during boot. It’s easy for me to troubleshoot in this way.<\/em><\/p>\n

Note: If you want to detach the root volume of an instance, make sure the instance is in the stopped state.<\/u><\/strong><\/pre>\n
Select the instance on the console<\/p>\n
Check for the root volume (\/dev\/sda1)<\/p>\n
\"Creating<\/p>\n
click on \/dev\/sda1 \u2192<\/span> <\/span>This will give an EBS Volume ID<\/p>\n
Click on that volume ID that will redirect to the \u201cvolume\u201d<\/span> section<\/p>\n
Make a note of the volume ID before detaching and its device name ( In this case it is \/dev\/sda1)<\/p>\n
\"EBS_Volume<\/p>\n
\"EBS_Volume_Status_Check\"<\/p>\n
Observer, the state is showing as \u201cIn Use\u201d<\/span><\/p>\n
To detach that volume.<\/p>\n
Click on \u201cAction\u201d<\/span> (Make sure the volume is selected)<\/p>\n
Select \u201cDetach Volume\u201d<\/span><\/p>\n
\"Detach-EBS_Volume\"<\/p>\n
Once the volume is detached from an instance, the state changes from \u201cIn Use\u201d<\/span> to \u201cAvailable\u201d<\/span><\/p>\n
\"EBS_State_After_Despatch\"<\/p>\n
How to attach the volume to another instance?<\/strong><\/span><\/p>\n
Requirement:<\/strong><\/p>\n