verifying mount points on an Ec2 instance - amazon-web-services

Question

i am mounting multiple ebs volumes on an ec2 instance to perform some validations and check-sums but the problem is that before mounting volumes on the target mount point , i need to check whether that mount is not occupied, since i am creating mount points dynamically e.g
test_lambda.py (e.g)
device_prefixes = ['f','g','h','i','j','k','l','m','n','o','p']
attached_volumes = []
try:
for index,volume_id in enumerate(created_volumes):
MOUNT_POINT = "/dev/sd{}".format(device_prefixes[index])
I have tried commands using SSM like /proc/mounts, findmnt, but they are displaying partitions and other volumes but not target like (/dev/sde,/dev/sdf etc)

Answer 1

Thanks to the hint provided by jordan, i was able to clear my understanding about block device mapping , boto3 ec2 client has a method associated
`# where attribute can be one of the following` `"""'|'kernel'|'ramdisk'|'userData'|'disableApiTermination'|'instanceInitiatedShutdownBehavior'|'rootDeviceName'|'blockDeviceMapping'|'productCodes'|'sourceDestCheck'|'groupSet'|'ebsOptimized'|'sriovNetSupport'|'enaSupport'|'enclaveOptions'|'disableApiStop',z"""`
print(instance.describe_attribute(
instance.describe_attribute(
Attribute='blockDeviceMapping',
DryRun=False,
)
it does give us info about certain resources, apologies if my question was not clear in the first place,
{'BlockDeviceMappings': [{'DeviceName': '/dev/xvda', 'Ebs':
{'AttachTime': datetime.datetime(2022, 5, 27, 12, 4, 1,
tzinfo=tzlocal()), 'DeleteOnTermination': True, 'Status': 'attached',
'VolumeId': 'vol-05bb41df0e6bc4bf3'}}, {'DeviceName': '/dev/sdl',
'Ebs': {'AttachTime': datetime.datetime(2022, 5, 27, 15, 15, 51,
tzinfo=tzlocal()), 'DeleteOnTermination': False, 'Status': 'attached',
'VolumeId': 'vol-00be0e0f001fea1a9'}}, {'DeviceName': '/dev/sdm',
'Ebs': {'AttachTime': datetime.datetime(2022, 5, 27, 15, 15, 51,
tzinfo=tzlocal()), 'DeleteOnTermination': False, 'Status': 'attached',
'VolumeId': 'vol-09c552e77ba2a563f'}}, {'DeviceName': '/dev/sdn',
'Ebs': {'AttachTime': datetime.datetime(2022, 5, 27, 15, 15, 52,
tzinfo=tzlocal()), 'DeleteOnTermination': False, 'Status': 'attached',
'VolumeId': 'vol-08d28a4ffe5e71dff'}}, {'DeviceName': '/dev/sdo',
'Ebs': {'AttachTime': datetime.datetime(2022, 5, 27, 15, 15, 53,
tzinfo=tzlocal()), 'DeleteOnTermination': False, 'Status': 'attached',
'VolumeId': 'vol-0e63fa17bd6185ee3'}}, {'DeviceName': '/dev/sdf',
'Ebs': {'AttachTime': datetime.datetime(2022, 5, 27, 15, 36, 42,
tzinfo=tzlocal()), 'DeleteOnTermination': False, 'Status': 'attached',
'VolumeId': 'vol-058de095fcfb1ef05'}}, {'DeviceName': '/dev/sdg',
'Ebs': {'Atta