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Re: striped SATA will segfault qtparted

From: K.G.
Subject: Re: striped SATA will segfault qtparted
Date: Thu, 20 Oct 2005 22:47:01 +0200


On Thu, 20 Oct 2005 15:53:57 -0400 Yasunari Tosa <address@hidden> wrote:
> Here is the exact message:
> Error: Can't have a partition outside the disk!
> A bug has been detected in GNU parted.  Please email a bug report
> to address@hidden containing the version (1.6.21) and the
> following message:Assertion (disk != NULL) at ../../libparted/disk.c:1037
> in function ped_disk_next_partition() failed.
> It says that the libparted version and file and line number.


> K.G. wrote:
> > >My wish is that "qtparted" partitions a striped disk set.  
> >
> >I think you can probably configurate a block device as RAID0
> >of /dev/sda and /dev/sdb with standard Linux tools, so you
> >might be able to use *Parted on the block device you obtain.
> >
> Well, this PC is a WindowsXP PC with NTFS.    Can you explain in more 
> details?

Well I never used RAID so actually I don't know much
about what has to be done exactly.  But basicaly you
just enter some commands which tell Linux to consider
/dev/sda and /dev/sdb as a RAID0 array of disks, and
this result in a third block device
/dev/i_dont_know_how_it_s_called to contains a logical
view of what is in the RAID array (as if it was a single

> I have been using Knoppix to do "dd" on my Windows PCs to backup disks 
> for IDE drives. 
> I just tried on this XPC with SATA drives to see whether I can do "dd" 
> or not. 
> Since it is recognized as /dev/sda and /dev/sdb, I hope to "dd" each 
> disk to get exact copies of
> the striped disks.   Have you done something like this?

I never did something like that before, but I can't see any reason
why this wouldn't work.  So if you just want exact copies, go on,
this looks the simpliest way to do it.

Guillaume Knispel

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