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Author Topic: GuruPlug & MicroSD or MicroSDHC  (Read 4748 times)

hollymcr

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GuruPlug & MicroSD or MicroSDHC
« on: 27 April 2012, 11:42:11 am »

I've just plugged a brand new 8GB Kingston Class 10 MicroSDHC card into my GuruPlug ServerPlus to be greeted with the following in /var/log/messages:
Code: [Select]
Apr 27 11:51:00 sheevaplug-debian kernel: sd 1:0:0:1: [sdb] Unit Not Ready
Apr 27 11:51:00 sheevaplug-debian kernel: sd 1:0:0:1: [sdb] Sense Key : 0x3 [current]
Apr 27 11:51:00 sheevaplug-debian kernel: sd 1:0:0:1: [sdb] ASC=0x30 ASCQ=0x0
repeating every 2s until I remove the card.

As I understand it ASC=0x30 ASCQ=0x0 means "Incompatible media" [1] - does this mean I'm limited to MicroSD (not MicroSDHC) or is something else going on? The card works fine in other hardware.

The card is currently formatted to FAT32 (as shipped to me) but as fdisk doesn't even recognise the device I don't think it's a filesystem issue. I've not plugged anything into the MicroSD slot previously and don't have any other cards here to test.

NB: I only want the card as extra storage, I have no desire to boot from it. Well not yet anyway :-)

[1] http://publib.boulder.ibm.com/infocenter/tsminfo/v6/index.jsp?topic=%2Fcom.ibm.itsm.messages.doc%2Fascdesc.html
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PacoLM

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Re: GuruPlug & MicroSD or MicroSDHC
« Reply #1 on: 27 April 2012, 12:32:26 pm »

Try to format it in another Linux system and test it.
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hollymcr

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Re: GuruPlug & MicroSD or MicroSDHC
« Reply #2 on: 27 April 2012, 12:36:44 pm »

Try to format it in another Linux system and test it.

What filesystem should I choose? ext3?
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hollymcr

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Re: GuruPlug & MicroSD or MicroSDHC
« Reply #3 on: 27 April 2012, 01:02:51 pm »

What filesystem should I choose? ext3?

Also, should it have a partition (/dev/sdb1) on it or should I just format /dev/sdb?
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hollymcr

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Re: GuruPlug & MicroSD or MicroSDHC
« Reply #4 on: 27 April 2012, 02:19:17 pm »

It seems to be working now formatted to ext3 and after a reboot. I hadn't intended to reboot in order to try the card but I missed the MicroSD slot and "posted" the card into the body of the device - oops. But subsequent tests suggest that the GuruPlug does need to be powered up after installation of the card, not the other way around.
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