bug in --manage mode

bug in --manage mode

[exe]

Hello, I hit a bug in mdadm.

According to "--manage --help" this must work, but it doesn't:

-bash-3.2# mdadm --manage -a /dev/md2 /dev/sda3
mdadm: /dev/sda3 does not appear to be an md device

But this works fine:
-bash-3.2# mdadm --manage --add   /dev/md2 /dev/sda3
mdadm: re-added /dev/sda3


The version is:
LFS:root@~:mdadm --version
mdadm - v2.6.2 - 21st May 2007


--
Kandalincev Alexandre

Re: bug in --manage mode

[Bill Davidsen]

exe@agava.com wrote:
> Hello, I hit a bug in mdadm.
>
> According to "--manage --help" this must work, but it doesn't:
>
> -bash-3.2# mdadm --manage -a /dev/md2 /dev/sda3
> mdadm: /dev/sda3 does not appear to be an md device

I think that the "-a" is being parsed as "--auto" rather than "--add" in 
this case. I rarely use --manage, so I want to go look at the 2.6.3 
code, this is just a speculation at this point, but it does fit the 
behavior. Don't know why the "/dev/md2" doesn't generate an error if 
it's being parsed as something else, though.
>
> But this works fine:
> -bash-3.2# mdadm --manage --add   /dev/md2 /dev/sda3
> mdadm: re-added /dev/sda3
>
>
> The version is:
> LFS:root@~:mdadm --version
> mdadm - v2.6.2 - 21st May 2007

-- 
bill davidsen <davidsen@tmr.com>
  CTO TMR Associates, Inc
  Doing interesting things with small computers since 1979