HD Partition Lost??

Toby Bluhm tkb9 at adelphia.net
Sat May 22 03:03:06 UTC 2004

Steve Watford wrote:

>Yes, I downloaded the Maxtor diagnostic program and installed to a diskette.  
>It reports that the drive is failing and to back up right away returning a 
>diagnostic code for an RMA.  Oh well, guess it really is hardware.  I will be  
>dd'ing it over to another drive and sending this one back.  Then I'll work on 
>it from there.
>What would be the exact syntax for the dd command for the entire disk as you 
>suggested?  I will be installing a parallel drive in the morning, also a 
>160GB drive as /dev/hdc with the bad one being /dev/hda.  The bad drive is 
>nowhere near full, but is the max file size a problem still?  I shouldn't do 
>just partitions instead?  Although the one with the actual problem is a 100GB 
>partition, although only about 20% full. Around 22 Gig all together on the 
>Thanks for the help,
>On Thursday 20 May 2004 10:51 pm, Toby Bluhm wrote:
>>evilninja wrote:
>>>Hash: SHA1
>>>Steve Watford schrieb:
>>>| Thanks,
>>>| I'll give dd a try for backup puposes. I have already tried to fsck
>>>| the
>>>| partition it just comes back with a short read error.  Asking if it is
>>>| a zero
>>>always be careful to check an already damaged disk:
>>>| Steve Watford schrieb:
>>>| | hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
>>>| | hda: dma_intr: error=0x40 { UncorrectableError }, LBAsect=90895772,
>>>being not a professional but a normal user i think this really looks
>>>like some hw issues. so i'd suggest better to copy (dd) all the data
>>>from the disk, as long as you have time to. every additional use of the
>>>disk may cause its final death.
>>>i wonder why your other partitions *seem* to still be ok (e.g. "mount"
>>>and using its data then succeeds)...
>>Ack! I've had too many failures with Maxtor disks.
>>Anyway, use conv=sync,noerror with your dd command, preferably to an
>>identical disk. Do the entire disk /dev/hda. Yes, it will take a very
>>long time, but you have no other recourse if you want maintain all your
>>data. Then fsck the new disk. Fsck on the bad disk may just make matters
>>Download Maxtor's ide utility & see if you can fix the bad one - may
>>require a total disk rewrite.
>>Nothing unusual about  the other partitions being okay - just a matter
>>of location of the sectors on the platter(s). Be suspicious of the
>>entire disk though.

You may as well do the entire disk:

dd if=/dev/hda of=/dev/hdb bs=1k conf=sync,noerror

Install the new disk as hda & run your fsck on hda3.


Toby Bluhm

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