[Cialug] external hdd, laptop, clean unmounts

[David Champion]

Daniel A. Ramaley wrote:
> On Tuesday 08 January 2008 00:43, kristau wrote:
>   
>> Is it possible to target your journal to a different device?
>>     
>
> Why, yes it is. See mke2fs(8), specifically the -J option with 
> the "device=" argument.
>
>   
>> If so, you could set a location on the internal HD as the journal
>> target for the external HD and turn on sync and full data journaling.
>> Then when you unplugged the device, the journal would not risk becoming
>> corrupt, and it could correct problems upon the next remount.  Not even
>> sure if that is possible, though.
>>     
>
> That's a very interesting idea. I don't think it would work very well 
> for the case of unplugging the external drive from the computer this 
> was set up on and then plugging it in somewhere else. (And if you are 
> never going to move the drive, then why bother with an external in the 
> first place?) And i'm not sure if it would work at all as you describe. 
> It seems to me that it might work. It might be educational to play with 
> it and find out.
>   
I think that's covered in the manual under Chapter 13: How to corrupt 
your journal and lose all of your data.

Maybe I'm missing what the OP was looking for, but I just do a "umount 
/mnt/mydrive" before removing my USB drives.

-dc