SD card has lost its partition table

Allen Lin allen_lin at
Thu May 8 18:52:29 CEST 2008

Hi Clare,

Thanks for your sharing.


clare wrote:
> Hi Allen,
> My device is GTA01, the "original card" is the 512M card that came 
> with it. THe other card is a MicroSD (not SDHC) of 2G size.
> I had a Celtune Monster image on the "other card" and that is the one 
> that got zeroed.
> I had been using the original card back at the end of last year and it 
> had on it a rootfs.tar.gz from that time. I put it back in and am 
> using it now, but have put on it a later filesystem. Again a Monster 
> but I have not added the wikipedia, there is not much space which is 
> why I got the bigger one.
> But since I wrote that Joachim Steiger said:
> "but afaik thats a upstream bug in the linux kernel."
> means it hits everybody doing suspend/resume with rootfs on sdcards with
> linux atm.
> So I will repartition the card and avoid suspend/resume
> regards,
> clare
> On Tue, 6 May 2008, Allen Lin wrote:
>> Hi Clare,
>> I am Allen from Openmoko Testing Team. Could you describe more 
>> specific like what device you are using? GTA01? GTA02? What image 
>> inside? What do you mean original SD card? That means you have 
>> another one to boot? Thanks!
>> allen
>> clare wrote:
>>> Hi Cel,
>>> Just repeating the story as it happened: I was using 080422 monster 
>>> booted from the SD card, with a Nokia battery in the train reading 
>>> html files with "links". On approaching end of journey, I went to 
>>> the little section power management (?) and selected "dim then 
>>> lock." I had previously set gsm and bluetooth to off. Well I 
>>> probably left it a bit too long, as it was dead when I came back to 
>>> it. So took out the battery and charged that up. But subsequently it 
>>> won't boot from SD card, just circles round and round. saying each 
>>> time as far as I can tell
>>> Bad MBR sector signature 0.0000
>>> Bad partition,
>>> bad magic number
>>> cfdisk says it has 2G of free space.
>>> I ran dd on it and there seems to be quite a lot of data on it 
>>> otherwise.
>>> I put in the original SD card and was immediately able to boot from 
>>> that,
>>> as it had a filesystem I think one of yours dated Nov 30, which does 
>>> phone calls very well.
>>> It worries me though that the DIM then LOCK should have had such a 
>>> dramatic effect. What else might have caused loss of partition table?
>>> thanks
>>> clare

More information about the device-owners mailing list