[Bug-ddrescue] 7200.12 99% bad sectors

[venkateswara reddy]

Hello friends

i am working on seagate 500gb SATA 7200.12. In this series i have seen
few cases  lot of bad sectors are appearing . In fact this hdd was
tried in three places and this may be the main cause for appearing
more bad sectors. The hdd was detected in CMOS setup because initial
3000 sectors are good next rest of the hdd is continuous bad sectors.

Now i am trying to  take image by connecting as external hdd(using usb
to sata). But not showing in Ubantu (fdisk -l). Used seatools its
detecting bad sectors and repairing bad sectors without loosing the
data but at a time only 100 sectors max.   Then i tried Mhdd and
Hddscan but unable to restore the bad sectors completely.

My doubt is now is there any chance to take image if yes on which
operating system .

Sorry for the poor English.

Regards
Venkat