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SD Card Corruption
09-23-2012, 05:16 AM
Post: #11
RE: SD Card Corruption
(09-23-2012 04:55 AM)Dilligaf Wrote:  I corrupted 2 sandisk ultra cards, a class 6 and a class 10. I also corrupted a Micro Center class 10 all of them several times. I'm now booting off a no name 2GB micro SD with an adapter and running xbmc from a flash drive. I can do 1G with core and sdram at 450. I have not tried bumping them up individually or tried going over 1G. It's running rock solid right now so I think I'll try pushing it higher. Note that flash drive r/w speeds vary greatly, from testing various drives I have had from 2/5 to 15/30 Check out usbdeview for a quick and easy usb speed test.

Mike

I think that's the route I'm going to take on one of my other rpi's. I have an overabundance of usb thumb drives. I might try that and see how it goes.
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09-23-2012, 08:33 AM
Post: #12
RE: SD Card Corruption
Is only Transcend cards affected? I have a 8Gb and a 4Gb Transcend class 10 cards in different Pis. If so is there any brand thats unaffected by the filesystem corruption issue?
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09-23-2012, 08:39 AM
Post: #13
RE: SD Card Corruption
Did you read the post above yours? I took out 2 different Sandisk cards and a Micro Center card (which could possibly be a Transcend)

Pi problems?? Start here http://forum.stmlabs.com/showthread.php?tid=3918
http://elinux.org/R-Pi_Troubleshooting
http://elinux.org/RPi_config.txt
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09-23-2012, 10:45 AM
Post: #14
RE: SD Card Corruption
(09-23-2012 08:39 AM)Dilligaf Wrote:  Did you read the post above yours? I took out 2 different Sandisk cards and a Micro Center card (which could possibly be a Transcend)

Ouch wearing my stupid hat. Sorry about that. Anyways, seems to be a non brand specific issue then. Tried finding something about the issue in the Raspberry Pi forums but was unable to find it (the forum layouts seem to be less than optimal there).
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09-23-2012, 03:18 PM (This post was last modified: 09-23-2012 03:23 PM by stevotdo.)
Post: #15
RE: SD Card Corruption
(09-23-2012 10:45 AM)jolindse Wrote:  
(09-23-2012 08:39 AM)Dilligaf Wrote:  Did you read the post above yours? I took out 2 different Sandisk cards and a Micro Center card (which could possibly be a Transcend)

Ouch wearing my stupid hat. Sorry about that. Anyways, seems to be a non brand specific issue then. Tried finding something about the issue in the Raspberry Pi forums but was unable to find it (the forum layouts seem to be less than optimal there).

Yeah, I had to go into the troubleshooting section there. There was a post there named "Kernel PANIC after update."

The key bit from that topic was "unable to mount root fs on unknown-block(172,2)." after he updated his distribution. It sounds like it was running fine with the new update and then after a few reboots the problems started in. He was overclocked to 950 mhz.

I asked him what sd card he was using out of curiosity but haven't heard anything back yet.

On a side note. I also have a 8gb transcend but I haven't even gotten a chance to try it out and see if it is experiencing the same issue as my original post (unsupported sd card with constant corruption.)

Edit: There's another thread of interest over there in the Power Users section titled "New Overclocking bricked my RasPi" the key bit from that was a reply from "dom" "I'm sure the Pi is not bricked. You may have corrupted the sdcard. We're still investigating the cause of the sdcard corruption.
Try re-imaging the scdard and choose a lower overclock level."
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09-23-2012, 03:37 PM
Post: #16
RE: SD Card Corruption
http://www.raspberrypi.org/phpBB3/viewto...&start=425

Can some one try initial_turbo=30 just put it in additional config.txt option in the settings add on.
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09-23-2012, 03:48 PM (This post was last modified: 09-23-2012 03:49 PM by popcornmix.)
Post: #17
RE: SD Card Corruption
(09-23-2012 03:37 PM)s7mx1 Wrote:  http://www.raspberrypi.org/phpBB3/viewto...&start=425

Can some one try initial_turbo=30 just put it in additional config.txt option in the settings add on.

Remember you need latest start.elf. You can download from here and replace the one on your FAT partition:
https://github.com/raspberrypi/firmware/.../start.elf
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09-23-2012, 04:08 PM
Post: #18
RE: SD Card Corruption
Thanks to those testing

I vaguely recall an issue with P4s in Linux where HT would cause the timer to act twice as fast, this caused filesystem corruption as well. As long as the bogomips are accurately reported I don't think this will cause much of an issue.
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09-23-2012, 04:42 PM
Post: #19
RE: SD Card Corruption
This might be the solution to the Sd Card problems in RC5 then? So, if it works you can release it... Wink
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09-23-2012, 04:52 PM
Post: #20
RE: SD Card Corruption
(09-23-2012 03:48 PM)popcornmix Wrote:  
(09-23-2012 03:37 PM)s7mx1 Wrote:  http://www.raspberrypi.org/phpBB3/viewto...&start=425

Can some one try initial_turbo=30 just put it in additional config.txt option in the settings add on.

Remember you need latest start.elf. You can download from here and replace the one on your FAT partition:
https://github.com/raspberrypi/firmware/.../start.elf

I'll try the suggestions and report back.
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