[CentOS] CF disks images and centos

Brunner, Brian T. BBrunner at gai-tronics.com
Tue Nov 30 15:48:37 EST 2010


> On Tuesday, November 30, 2010 01:10:14 pm Brunner, Brian T. wrote:
> > Even if the two disks have the same manufacturer and 
> > manufacturer part number, different firmware revisions can fail to
boot after 
> > dd if=/dev/spinpoint.partnumber.fwrev1
of=/dev/spinpoint.partnumber.fwrev2
> 
> > Been there, done that, got bit where the sun doesn't shine.
> 
> Care to share specifics?  This would be interesting information.

1: a few years back
2: we qualified Hitachi TravelStar lap-top drives (IIRC 20GB) and
3: tried to do our old method of copying a master to the multiple
"programmed parts" using a disk duplicator machine (CDC Disk Duplicator,
Pro Model) and found that
4: differing FW versions were incompatible (non-bootable), but the file
system looked identical/perfect if the drives were mounted on a system
that booted elsewhere (eg linux rescue).

We found out the two groups of drives had 1 of 2 different FW versions.

dd if=/dev/spinpoint.partnumber.fwrev1
of=/dev/spinpoint.partnumber.fwrev1 booted,
dd if=/dev/spinpoint.partnumber.fwrev2
of=/dev/spinpoint.partnumber.fwrev2 booted;
dd of fw1 to fw2, or of fw2 to fw1, did not boot.

We since shifted to another drive brand and size; IIRC the old one is no
longer in production; www.pricewatch.com does not list the drive as I
recall it.  If closer details are /needed/ by anybody, I can go bother
the techs to look them up.
*******************************************************************
This email and any files transmitted with it are confidential and
intended solely for the use of the individual or entity to whom
they are addressed. If you have received this email in error please
notify the system manager. This footnote also confirms that this
email message has been swept for the presence of computer viruses.
www.Hubbell.com - Hubbell Incorporated**



More information about the CentOS mailing list