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* Partitioned loop device..
@ 2003-07-15  7:10 Dimitry V. Ketov
  0 siblings, 0 replies; 14+ messages in thread
From: Dimitry V. Ketov @ 2003-07-15  7:10 UTC (permalink / raw)
  To: linux-kernel

Hello,
	Is there any (un)official patch for current stable (or
development) kernel that makes loop device partitioned? I found one on
the ftp://ftp.hq.nasa.gov/pub/ig/ccd/enhanced_loopback/ (it contains
port of Scyld's partition enhancements), but it seems still needs a fix.
In general I plan to use partitioned loop device to simulate real disks
in linux labs, possibly with a help from Stephen Tweedie's testdrive
fault simulator. I just wonder if partitionable/faultable loop device
planned in the future official kernels, or it will be better to write a
separate 'simulated disk' driver???

Thanks in advance,
Dimitry.

^ permalink raw reply	[flat|nested] 14+ messages in thread
* Partitioned loop device..
@ 2003-07-15  8:46 Dimitry V. Ketov
  2003-07-15 15:01 ` Kevin Corry
  0 siblings, 1 reply; 14+ messages in thread
From: Dimitry V. Ketov @ 2003-07-15  8:46 UTC (permalink / raw)
  To: linux-kernel

Hello,
	Is there any (un)official patch for current stable (or
development) kernel that makes loop device partitioned? I found one on
the ftp://ftp.hq.nasa.gov/pub/ig/ccd/enhanced_loopback/ (it contains
port of Scyld's partition enhancements), but it seems still needs a fix.
In general I plan to use partitioned loop device to simulate real disks
in linux labs, possibly with a help from Stephen Tweedie's testdrive
fault simulator. I just wonder if partitionable/faultable loop device
planned in the future official kernels, or it will be better to write a
separate 'simulated disk' driver???

Thanks in advance,
Dimitry.

^ permalink raw reply	[flat|nested] 14+ messages in thread
* RE: Partitioned loop device..
@ 2003-07-15 18:32 Dimitry V. Ketov
  2003-07-15 21:15 ` Lars Marowsky-Bree
  2003-07-18 14:20 ` Christophe Saout
  0 siblings, 2 replies; 14+ messages in thread
From: Dimitry V. Ketov @ 2003-07-15 18:32 UTC (permalink / raw)
  To: Kevin Corry, linux-kernel

> You can already use Device-Mapper to create "partitions" on 
> your loop devices, 
You're right but I want _partitions_ but not "partitions" ;)
It should appears like a real hardware disk, not virtual one.

> so there's not much of a reason to add partitioning support 
> to the loop 
> driver itself.
There is a reason for teaching my students indeed :) that is why I ask.

> There are a variety of tools you can use to 
> set them up: EVMS, 
> LVM2, dmsetup, and I think there is/was a simple partitioning 
> tool that uses 
> DM (dmpartx?). 
It's just completely different topic for the teaching ;)

^ permalink raw reply	[flat|nested] 14+ messages in thread
* RE: Partitioned loop device..
@ 2003-07-16  8:59 Dimitry V. Ketov
  2003-07-16 13:51 ` Kevin Corry
  0 siblings, 1 reply; 14+ messages in thread
From: Dimitry V. Ketov @ 2003-07-16  8:59 UTC (permalink / raw)
  To: Lars Marowsky-Bree, Kevin Corry, linux-kernel

> There is no difference. What makes /dev/loop1a worse than 
> /dev/hda1? It's just block devices, that's it.
Yes, it is. But I meant its still impossible to use legacy fdisk to
create that DM mapped partitions (or am I wrong?)

> I have hopes that the entire partitioning code etc will be 
> ripped out in 2.7 in favour of full userspace discovery + DM, 
> and that MD will hit the same fate...
MD - did you mean metadisks (software raids?)

Dimitry.

^ permalink raw reply	[flat|nested] 14+ messages in thread

end of thread, other threads:[~2003-07-18 23:43 UTC | newest]

Thread overview: 14+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2003-07-15  7:10 Partitioned loop device Dimitry V. Ketov
2003-07-15  8:46 Dimitry V. Ketov
2003-07-15 15:01 ` Kevin Corry
2003-07-15 15:53   ` Josh Litherland
2003-07-15 16:04     ` Kevin Corry
2003-07-15 16:05     ` Herbert Pötzl
2003-07-17  2:44     ` kernel
2003-07-15 18:32 Dimitry V. Ketov
2003-07-15 21:15 ` Lars Marowsky-Bree
2003-07-18 14:20 ` Christophe Saout
2003-07-18 19:10   ` Mr. James W. Laferriere
2003-07-18 23:57     ` Christophe Saout
2003-07-16  8:59 Dimitry V. Ketov
2003-07-16 13:51 ` Kevin Corry

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