[GLLUG] Dual-Boot Copy?

Richard Houser rick at divinesymphony.net
Wed Oct 31 20:10:54 EDT 2007


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Michael Watters wrote:
> Michael George wrote:
>> Also, maybe I'm ol' school, but resizing a partition is not something I
>> take lightly.  I think the potential for massive data loss is high. 
>> IMHO,
>> working within the filesystem is safer than doing tricks at the hardware
>> level.  If I had a system that isn't critical, then I might view it
>> differently, but currently all my systems are critical and I don't
>> like to
>> flirt with data loss on them.  YMMV.
>>
>> -Michael George
>>   
> This is one reason people should use LVM, I've grown/shrank plenty of
> file systems without an issue.  ext2 can even be resized online, I
> believe xfs and jfs can as well.
> 
> I just did this yesterday actually, shrank a 150 GB ext3 volume down to
> 10 GB without a problem.
> 
> I wouldn't be doing this stuff without backups any way.


I'm fairly certain ext2/ext3 don't support online resizing (not counting
the third-party kernel patches that can be applied).  That was one of
the bigger reasons I went with reiserfs on most of my machines.  When
you are dealing with 6+ drives, the flexibility of online resizing + LVM
is a huge factor.

This might just be a terminology thing though, online resizing means the
partition is never inaccessible.  Are you by chance meaning you can run
without rebooting?
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