From: Gary Brown on
Hi,

I need to read and erase a some Ext3 formatted hard drives
from an external enclosure. There are a number of Ext3
drivers for windows on the net but none explicitly say they
will work for an external drive. Does it matter to a driver that
the drive is external rather than internal?

The driver needs to read some backups from the drives
and erase (does Ext3 have an alternative to reformatting?)
some personal files before sending the unit back to the
manufacturer.

Thanks,
Gary


From: philo on

"Gary Brown" <garyjbrown(a)charter.net> wrote in message
news:duKPj.50$Qz.32(a)newsfe05.lga...
> Hi,
>
> I need to read and erase a some Ext3 formatted hard drives
> from an external enclosure. There are a number of Ext3
> drivers for windows on the net but none explicitly say they
> will work for an external drive. Does it matter to a driver that
> the drive is external rather than internal?
>
> The driver needs to read some backups from the drives
> and erase (does Ext3 have an alternative to reformatting?)
> some personal files before sending the unit back to the
> manufacturer.
>
> Thanks,
> Gary
>
>


The utilites avail should be able to read the data
and copy it to your windows partition

after you've copied your data over
use disk management from windows and delete the drive
and format it NTFS or use a zero write utility from within windows


From: Paul on
Gary Brown wrote:
> Hi,
>
> I need to read and erase a some Ext3 formatted hard drives
> from an external enclosure. There are a number of Ext3
> drivers for windows on the net but none explicitly say they
> will work for an external drive. Does it matter to a driver that
> the drive is external rather than internal?
>
> The driver needs to read some backups from the drives
> and erase (does Ext3 have an alternative to reformatting?)
> some personal files before sending the unit back to the
> manufacturer.
>
> Thanks,
> Gary

They mention USB Mass Storage devices here.

http://www.fs-driver.org/relnotes.html

http://www.fs-driver.org/faq.html#acc_ext3

In terms of erasing a disk before returning it to the manufacturer,
there are a couple options. DBAN is a program while will
erase *all* hard drives connected to the computer. (Therefore,
only the target disk should be connected before booting DBAN.
And yes, there are people who have left valuable disks connected,
and then used DBAN. Which is why I mention it.)

http://dban.sourceforge.net/
http://sourceforge.net/forum/forum.php?forum_id=208932

An alternative, is a program that accesses an erasure flag inside
modern drives. Once the flag is set, the drive erases itself,
and will continue erasing until the job is done. Then the erase
flag is cleared. Such a feature, allows a user in a matter of seconds,
to set the erasure flag, and give the drive to another user. They
won't be able to do anything with the drive, until the internal
erasure algorithm inside the drive is finished (runs whenever drive
is powered). Then, the drive will return to normal, and accept
normal commands.

http://cmrr.ucsd.edu/people/Hughes/SecureErase.shtml
http://blogs.zdnet.com/storage/?p=129

For SecureErase, I'd leave the drive powered for a couple
hours, after the flag is set, and let the internal erasure
operation run to completion. And then send it back to the
manufacturer.

The internal erasure feature is supposed to be supported on
modern EIDE/SATA drives, but not apparently on SCSI drives.

HTH,
Paul
From: Gary Brown on
>> I need to read and erase a some Ext3 formatted hard drives
>> from an external enclosure. There are a number of Ext3
>
> They mention USB Mass Storage devices here.
>
> http://www.fs-driver.org/relnotes.html
>
> http://www.fs-driver.org/faq.html#acc_ext3
>

This wouldn't read because of journalling active on the disk.
Required Unix, which I don't have.

Is there an ultra simple Unix that will handle ext3 files that
can be booted from a CD or DVD?

Gary


From: Paul on
Gary Brown wrote:
>>> I need to read and erase a some Ext3 formatted hard drives
>>> from an external enclosure. There are a number of Ext3
>> They mention USB Mass Storage devices here.
>>
>> http://www.fs-driver.org/relnotes.html
>>
>> http://www.fs-driver.org/faq.html#acc_ext3
>>
>
> This wouldn't read because of journalling active on the disk.
> Required Unix, which I don't have.
>
> Is there an ultra simple Unix that will handle ext3 files that
> can be booted from a CD or DVD?
>
> Gary
>
>

This one is listed as supporting EXT3.

http://en.wikipedia.org/wiki/Damn_Small_Linux

It might be smaller than the Knoppix and Ubuntu CDs I have here.

http://en.wikipedia.org/wiki/Comparison_of_Linux_distributions

About 50MB.

http://www.damnsmalllinux.org/

Paul
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