Re: mdadm 2.5.1 - A problem came up ...

On Friday June 16, babydr@baby-dragons.com wrote:

 	Hello Neil ,  If I add any disk partition to end of the below command as
 	man mdadm requests .  Ok ,  Now I get it ,  "partitions" or "none" are
 	required .  But still ...

 	<Quote>
 	mdadm --examine --brief --scan --config=partitions
 	mdadm -Ebsc partitions
 	Create  a list of devices by reading /proc/partitions, scan these for RAID superblocks, and printout a brief listing of all that was found.
 	<\Quote>

root@privateers:~# mdadm -Ebsc
mdadm: option requires an argument -- c

Yes, it requires an argument.  The argument in I gave in the example
was 'partitions'.

Usage: mdadm --help
   for help

 	Ok ,  But when I do a ...

root@privateers:~# mdadm -Ebsc --help
ARRAY /dev/md0 level=raid1 num-devices=2 UUID=8d5cd2c7:42544200:d2bdaaad:ce1bab0c
ARRAY /dev/md1 level=raid1 num-devices=2 UUID=e8a0caca:1e477715:f7f74d6b:88dd401c
ARRAY /dev/md3 level=raid1 num-devices=2 UUID=a87d5acf:17038a98:03577e48:76e31d5c
ARRAY /dev/md2 level=raid1 num-devices=2 UUID=8f4b56fa:840ad5eb:0c28a667:6a46f759

 	I was expecting a help readout not the command to actually function .

Yes, maybe it should have complained that '--help' was not a valid
config file, which is what that command is suggesting.

Putting '--help' first leaves less room for confusion, not that it
would have helped much in this case. :-(

$ ./mdadm --help -Ebsc
./mdadm: option requires an argument -- c
Usage: mdadm --help
  for help


NeilBrown