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-   -   External SD Card not accessible (https://talk.maemo.org/showthread.php?t=68206)

StefanL 2011-01-11 15:22
External SD Card not accessible
 
I seem to have lost my external SD card. Details of the card is a 16GB Kingston microSD card. I am able to see the contents on a Windows computer. Running df shows no mention of /dev/mmcblk1p1. There is also no entry for it in the fstab file.

Reflashed it with PR1.3 but still cannot see the external SD card :(.

Any help is appreciated.

Keneraali 2011-01-11 15:26
Re: External SD Card not accessible
 
Is your back cover correctly attached? The phone doesn't mount a SD-card before it recognizes that the back cover firmly attached

StefanL 2011-01-11 15:34
Re: External SD Card not accessible
 
Quote:
Originally Posted by Keneraali (Post 917889)
Is your back cover correctly attached? The phone doesn't mount a SD-card before it recognizes that the back cover firmly attached
Thanks for the quick reply, cover is secure.

GameboyRMH 2011-01-11 15:44
Re: External SD Card not accessible
 
Just to make sure it isn't some problem with the partition, back up the card, reformat it and try again. If it still doesn't work in the N900 - as in you can't even see it with "sfdisk -l" - then it's a hardware problem with your N900.

StefanL 2011-01-11 16:10
Re: External SD Card not accessible
 
Quote:
Originally Posted by GameboyRMH (Post 917909)
Just to make sure it isn't some problem with the partition, back up the card, reformat it and try again. If it still doesn't work in the N900 - as in you can't even see it with "sfdisk -l" - then it's a hardware problem with your N900.
Yeah, I am hoping it is not a hardware problem. is there any way to check that?

festivalnut 2011-01-11 16:30
Re: External SD Card not accessible
 
with regards to the back cover, the n900 checks if its attached via a small magnet under the kickstand which is notorious for coming loose and falling out, check its still there.

GameboyRMH 2011-01-11 17:27
Re: External SD Card not accessible
 
Ah good idea, I didn't think of the magnet sensor, that could be it...

michaaa62 2011-01-11 18:08
Re: External SD Card not accessible
 
If it is clear that no hardware issue prevents mounting, you could try to check and repair the file system. You need rootsh installed for this
Code:
sudo gainroot
fsck -af /dev/mmcblk1p1
mount /media/mmc1

GameboyRMH 2011-01-11 18:49
Re: External SD Card not accessible
 
Uh are you sure you shouldn't unmount the filesystem first?

michaaa62 2011-01-11 19:12
Re: External SD Card not accessible
 
Quote:
Running df shows no mention of /dev/mmcblk1p1.
From OP's first post, so no need to umount it.

StefanL 2011-01-12 10:00
Re: External SD Card not accessible
 
Quote:
Originally Posted by festivalnut (Post 917933)
with regards to the back cover, the n900 checks if its attached via a small magnet under the kickstand which is notorious for coming loose and falling out, check its still there.
I think my magnet is still attached, is there any other sensors that it uses?

StefanL 2011-01-12 10:09
Re: External SD Card not accessible
 
Quote:
Originally Posted by michaaa62 (Post 918010)
If it is clear that no hardware issue prevents mounting, you could try to check and repair the file system. You need rootsh installed for this
Code:
sudo gainroot
fsck -af /dev/mmcblk1p1
mount /media/mmc1
Output from fsck is as follows:

fsck.ex2: No such file or directory while trying to open /dev/mmcblk1p1
/dev/mmcblk1p1/:
The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ........) etc.

Output from mount command:
mount: can't find /media/mmc1 in /etc/fstab

How do I get the entry for mmcblk1p1 into /dev/ ?

StefanL 2011-01-12 12:29
Re: External SD Card not accessible
 
Anybody able to post their /etc/fstab contents for me to see the correct entry for the mmcblk1p1 device?

Mandibela 2011-01-12 12:42
Re: External SD Card not accessible
 
I had the same problem... External SD Card just disappeared. Sent it to repairs because flashing did nothing.

Mandibela 2011-01-12 12:43
Re: External SD Card not accessible
 
Quote:
Originally Posted by Mandibela (Post 918587)
I had the same problem... External SD Card just disappeared. Sent it to repairs because flashing did nothing.
"I'm thinking that something went bad with the sensor that has the back cover magnet as a counterpart.

Hopefully I get at least a repair report, if I don't get a new device =D The magnet sensor has to be on the motherboard, fixing it might be too expensive."

StefanL 2011-01-12 13:03
Re: External SD Card not accessible
 
Quote:
Originally Posted by Mandibela (Post 918587)
I had the same problem... External SD Card just disappeared. Sent it to repairs because flashing did nothing.
Yeah, I am starting to get that feeling that it is a hardware problem :(. I was hoping that there is some diagnostics I can do to get confirmation of this. When connected to a windows machine, both drives come up under Mass Storage Mode, but it says to insert disk into drive for the external SD card slot drive letter.

casper27 2011-01-12 13:16
Re: External SD Card not accessible
 
I had more or less the same problem but also my camera would not launch with the back cover on. Had to send it to Nokia who had it for about 10 days and sent me a replacement which is all good.

Mandibela 2011-01-12 17:10
Re: External SD Card not accessible
 
Quote:
Originally Posted by casper27 (Post 918614)
I had more or less the same problem but also my camera would not launch with the back cover on. Had to send it to Nokia who had it for about 10 days and sent me a replacement which is all good.
I also had issues with the camera and back cover, dmesg showed that the signals from the camera button and back cover were somehow wrong. The flashing didn't fix those either, so I sent it to the shop.

Quote:
Originally Posted by StefanL (Post 918601)
Yeah, I am starting to get that feeling that it is a hardware problem :(. I was hoping that there is some diagnostics I can do to get confirmation of this. When connected to a windows machine, both drives come up under Mass Storage Mode, but it says to insert disk into drive for the external SD card slot drive letter.
I didn't see my card through USB. The card is working perfectly (as we speak) in my old 6120c, also I tried other cards in the N900 which also didn't show up.

Strange...

Mandibela 2011-01-23 17:15
Re: External SD Card not accessible
 
I got a 'new phone'. No retail box, just a 'new' device, with a different IMEI...

It seems I got my old battery and back cover back. Which is kinda sad, as the back cover is missing a the flat spring keeping the stand up.

The memory card is naturally functioning as it should.


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