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Old 12-27-2010, 09:51 AM   #1
john_erlandsson
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Question Is my CF card toasted?


Hi!

I am experimenting with an embedded PC witch uses a CF card instead of a harddrive.
The card is a 4GB Transcend 300x compact flash.
I am not at all experienced in troubleshooting storage media.

I was trying various installations of "Damn small linux" when it all of a sudden stopped working.
The Embedded PC halts at boot with the message: No storage media present.

When reading the first sector using #dd if=/dev/sdd count=1 bs=512 | hexdump -C
I get:
Code:
00000000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
I tried writing to the first sector using dd if=/dev/urandom of=/dev/sdd count=1 bs=512
But it doesn't stick.


Testdisks analyze tool tells me that the structure is ok.
It also tells me that the geometry is:
Cylinders: 1019
Heads: 126
Sectors: 62
Sector size: 512


The card is brand new, and stopped working after only 2 hours of experementing.
I have tried creating partition tables, labels, and stuff using parted and fdisk. They appear to write the changes without complaints, but no changes ever stay on the disk.


Is this enough information for anyone to determine if my cf is kaput?
Any other tools you would recommend?

Thanks

//John
 
Old 12-27-2010, 02:03 PM   #2
business_kid
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To me, 'No storage media' means exactly that - there's a running kernel which suddenly can't find the disk. The jury is still out and really it doesn't look good, but treat it as a working piece of kit and check does it have the drivers, etc. The o/p of /proc/interrupts & /proc/ioports might tell you what's up. It could be a motherboard issue. Does the bios detect it?
 
Old 12-27-2010, 02:09 PM   #3
jefro
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Try a usb cf reader on some other computer to test disk. If works then we might assume that the board is bad.
 
Old 12-27-2010, 02:29 PM   #4
john_erlandsson
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Oh sorry...

Forgot to mention that I have been working with the card on my workstation using a card reader.
The embedded PC is getting nowhere with the disk.
Therefore I am pretty sure that the cfcard is the issue.

Thanks for replying.

//John

Last edited by john_erlandsson; 12-27-2010 at 06:28 PM.
 
Old 12-28-2010, 02:14 PM   #5
john_erlandsson
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The Card is probably broken...

I was just kind of hoping that since i can read data from the card using my reader and the dd command, that there was some hope...

the output of #dd if=/dev/sdd | strings gives me:
Code:
TRANSCEND
TS4GCF300
SERIAL NUM :02019020    40030017MODEL NUSTG4FC03 0                              SIGNATURE:J
=SM223EAD CIDPAGE>>>>>>>>>>>>>>>>
<<<<<<<<<<<<<<<<SM223EAD CIDPAGE================
about ten billion times


//John
 
Old 05-25-2011, 03:14 AM   #6
Formentar
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Hi John & others,
I'm in the exact same situation with a Transcend 4GB 133x card. It worked for a few hours, but then it disappeared after a reboot and now writing doesn't stick and reading just produces the same type of information you're describing, over and over again. Did you ever get your card to work, or should I just give up?
And perhaps more importantly, has anyone had luck with Transcend cards in cf-to-IDE adapters or do they all fry like this?
 
Old 05-26-2011, 03:28 AM   #7
john_erlandsson
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Hey Formentar!

I threw mine away... Bought different brand.

//John
 
Old 05-26-2011, 04:25 AM   #8
Formentar
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Hi John,
That sounds like the right thing to do. I've ordered a Kingston instead.

I've also contacted Transcend customer support. I can't imagine that they'll do anything, but at least they should be made aware of how many dud cards they're selling. (Grr...)
 
Old 05-26-2011, 08:43 AM   #9
Mr. Bill
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Quote:
Originally Posted by Formentar View Post
Hi John,
That sounds like the right thing to do. I've ordered a Kingston instead.

I've also contacted Transcend customer support. I can't imagine that they'll do anything, but at least they should be made aware of how many dud cards they're selling. (Grr...)
Did those cards come with a warranty? If not, why? If Transcend won't voluntarily repay you, I'd check local laws. Some govs enforce a nominal warranty regardless of "company policy".
 
Old 05-26-2011, 08:53 AM   #10
Formentar
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Quote:
Originally Posted by Mr. Bill View Post
Did those cards come with a warranty? If not, why? If Transcend won't voluntarily repay you, I'd check local laws. Some govs enforce a nominal warranty regardless of "company policy".
Under Swedish law I'd be able to get a replacement from the retailer, but in this case I bought the card on eBay from someone in Hongkong. Thankfully the price of these CF cards has dropped to next to nething in recent years, so I've lost less than the price of two pints down at the pub.

That said, I miss my two pints.
 
Old 05-26-2011, 02:37 PM   #11
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It isn't the price of the 2 pints I'd miss. It's the time, the pain of running down the issue, and the bad luck to have something irreplaceable on it.
 
  


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