def _GetNvmeBootIndex(self):
if aws_disk.LocalDriveIsNvme(self.machine_type) and \
aws_disk.EbsDriveIsNvme(self.machine_type):
# identify boot drive
cmd = 'lsblk | grep "part /$" | grep -o "nvme[0-9]*"'
boot_drive = self.RemoteCommand(cmd, ignore_failure=True)[0].strip()
if len(boot_drive) > 0:
# get the boot drive index by dropping the nvme prefix
boot_idx = int(boot_drive[4:])
logging.info('found boot drive at nvme index %d', boot_idx)
return boot_idx
else:
# boot drive is not nvme
return 0
def _GetNvmeBootIndex(self):
if aws_disk.LocalDriveIsNvme(self.machine_type) and \
aws_disk.EbsDriveIsNvme(self.machine_type):
# identify boot drive
# If this command ever fails consider 'findmnt -nM / -o source'
cmd = ('realpath /dev/disk/by-label/cloudimg-rootfs '
'| grep --only-matching "nvme[0-9]*"')
boot_drive = self.RemoteCommand(cmd, ignore_failure=True)[0].strip()
if boot_drive:
# get the boot drive index by dropping the nvme prefix
boot_idx = int(boot_drive[4:])
logging.info('found boot drive at nvme index %d', boot_idx)
return boot_idx
else:
logging.warning('Failed to identify NVME boot drive index. Assuming 0.')
return 0
