Re: captive mode - was: Re: [smartmontools-support](no subject)

[Bruce A. <ba...@gr...>]

> "Jeremy Friesner" <ja...@lc...> schrieb am 08.01.06 03:20:46:
>> The thing is I've been running "smartctl -C -t long /dev/sda" on SCSI disks
>> with mounted ext3 partitions, in an embedded/dedicated Linux system
>> (where my software can assume a controlled idle environment and no other users),
>> and it's been (apparently) working fine... but I saw that comment in the man page
>> and it worried me :^)
>
> So after all it's possible to run the test in captive mode on mounted devices.
> Interesting! Thanks for this information :)

Yes, but you won't have access to the mounted device for some time 
(perhaps hours).  If the mounted device has anything that the OS needs or 
expects to find, this can hang your OS.  So don't try this unless either 
you are sure that there is nothing needed from the device (in which case, 
you might as well unmount it) or you don't care if the system is 
potentially crippled or killed by this command.

Cheers,
 	Bruce