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by hidekiai
Tue Jul 08, 2014 6:18 pm
Forum: Troubleshooting
Topic: SD Card Mystery
Replies: 30
Views: 4992

Re: SD Card Mystery

Hi, Sorry I hadn't replied after being poked by Andrew earlier... Yes we did fix a bug rather recently that Andrew found certain SD cards failing to boot (left with the green LED slightly glowing) The bug was fixed and a new version of the firmware pushed (the important thing is the bootcode.bin fi...
by hidekiai
Thu Jun 26, 2014 11:30 pm
Forum: Troubleshooting
Topic: SD Card Mystery
Replies: 30
Views: 4992

Re: SD Card Mystery

...snip... My conclusion is that there is something wrong with the Raspberry Pi (hardware and/or firmware), but for some reason almost everyone seems to blame it on the SD cards, even if they work flawlessly elsewhere. ...snip... Thanks for the response and sharing your tests. I do want to agree wi...
by hidekiai
Wed Jun 25, 2014 4:22 pm
Forum: Troubleshooting
Topic: SD Card Mystery
Replies: 30
Views: 4992

Re: SD Card Mystery

Hi, Sorry I hadn't replied after being poked by Andrew earlier... Yes we did fix a bug rather recently that Andrew found certain SD cards failing to boot (left with the green LED slightly glowing) The bug was fixed and a new version of the firmware pushed (the important thing is the bootcode.bin fi...
by hidekiai
Wed Jun 25, 2014 4:04 pm
Forum: Troubleshooting
Topic: SD Card Mystery
Replies: 30
Views: 4992

Re: SD Card Mystery

...snip... But if the latest 2014-06-20 Raspbian (which already includes the latest firmware) still doesn't work on your "faulty" Pis, but does work on your "good" Pis, then you've obviously found some different bug that hasn't been fixed yet! :? :( If that is the case, from your educational guesse...
by hidekiai
Wed Jun 25, 2014 3:56 pm
Forum: Troubleshooting
Topic: SD Card Mystery
Replies: 30
Views: 4992

Re: SD Card Mystery

what was the result of adding boot_wait=1 to config.txt to the "bad" sd card? other than taking an extra second to boot ;-) Can you post the contents of your config.txt and cmdline.txt? (I assume the good/working SD card/Pi setups are identical. I'm not sure what I'm fishing for - Samsung/Hynix/Mic...
by hidekiai
Tue Jun 24, 2014 10:02 pm
Forum: Troubleshooting
Topic: SD Card Mystery
Replies: 30
Views: 4992

Re: SD Card Mystery

Upgrading to kernel v3.12.x did not help... Summary: * Have 3 finicky Pi's and 1 flexible Pi (to prove that the SD card works) * Upgraded from firmware at https://github.com/raspberrypi/firmware manually (I sort of mimicked the script written by Hexxoh but hand-copy) * Tried Debian hybrid from http:...
by hidekiai
Tue Jun 24, 2014 7:56 pm
Forum: Troubleshooting
Topic: SD Card Mystery
Replies: 30
Views: 4992

Re: SD Card Mystery

You can't copy *just* the kernel, you'll need to copy the matching kernel modules too... :geek: Sure. Just apt-get update , apt-get upgrade and reboot. The 3.12.* seems to be the production version now. Or follow http://www.raspberrypi.org/forums/viewtopic.php?f=66&t=77214&p=551316&hilit=upgrade+fi...
by hidekiai
Tue Jun 24, 2014 3:02 pm
Forum: Troubleshooting
Topic: SD Card Mystery
Replies: 30
Views: 4992

Re: SD Card Mystery

AndrewS wrote:https://github.com/raspberrypi/linux/issues/415 also discusses debugging the SD interface using a low-level analyser.
Thanks (again) for this gem of info, it has made more stronger justifications!
by hidekiai
Tue Jun 24, 2014 2:57 pm
Forum: Troubleshooting
Topic: SD Card Mystery
Replies: 30
Views: 4992

Re: SD Card Mystery

You can't copy *just* the kernel, you'll need to copy the matching kernel modules too... :geek: Hahaha indeed (I hope you are joking right?) I always tell people that drivers (and other *.ko) are one of the unique creatures that are between O/S and userland apps. I'm a Gentoo user, I (fortunately o...
by hidekiai
Mon Jun 23, 2014 11:22 pm
Forum: Troubleshooting
Topic: SD Card Mystery
Replies: 30
Views: 4992

Re: SD Card Mystery

This is justified by the fact that same exact dd'ed SD card images that are dd'ed to a reliable SD cards will work on all Pi's Dunno if it's the same issue or not, but I recently had a problem very similar to that where a card would get into an unbootable state, and dd-ing from the non-booting card...
by hidekiai
Mon Jun 23, 2014 9:11 pm
Forum: Troubleshooting
Topic: SD Card Mystery
Replies: 30
Views: 4992

Re: SD Card Mystery

This is a different version of MFT and not the classical "press the SD card to make better contacts". The scientifically correct way is to use a logic analyser or a scope to see the data transfer and signal levels between the SoC and SD-card. Most likely the problem is due to a hardware issue IMHO....
by hidekiai
Mon Jun 23, 2014 5:09 pm
Forum: Troubleshooting
Topic: SD Card Mystery
Replies: 30
Views: 4992

Re: SD Card Mystery

The problem can be the Raspberry Pi too - not always the ignorant user or wrong type of SD card. The RPi has been tested at factory to boot atleast once, but that does not mean that it will always boot. Here is my story http://www.raspberrypi.org/forums/viewtopic.php?f=28&t=78648 and it explains th...
by hidekiai
Mon Jun 23, 2014 2:50 pm
Forum: Troubleshooting
Topic: SD Card Mystery
Replies: 30
Views: 4992

Re: SD Card Mystery

are the SDcards physically bent a bit ... Indeed, a good point to bring up, but as mentioned, no matter how much I wiggle the contact of the card or not, the Pi's that do not boot up won't boot up (always, as in 100%), yet the Pi's that will always boot up will... if it was bent or contact is sensi...
by hidekiai
Thu Jun 19, 2014 10:07 pm
Forum: Troubleshooting
Topic: SD Card Mystery
Replies: 30
Views: 4992

Re: SD Card Mystery

...snip... element14 with debian6 pre-installed. What about your cards? Which power supply are you using? I recently started to use http://www.amazon.it/Nuovo-Alimentatore-1200-certificato-Raspberry/dp/B00EZ5Z0NS/ref=sr_1_1?ie=UTF8&qid=1399386941&sr=8-1&keywords=alimentatore+raspberry+pi but it see...
by hidekiai
Thu Jun 19, 2014 5:02 pm
Forum: Troubleshooting
Topic: SD Card Mystery
Replies: 30
Views: 4992

SD Card Mystery

First the scenario of what troubles I am having, followed by what I have tried/tested/verified... We're using several Pi's (i.e. clusters of 16 Pi's to each sets) in a production where it needs to run 24/7 and it'll be constantly be streaming videos (reading, not writing) from the SD card. Similar t...
by hidekiai
Sun Dec 09, 2012 5:24 pm
Forum: Troubleshooting
Topic: Cannot connect to internet
Replies: 5
Views: 1137

Re: Cannot connect to internet

I know the Ethernet port works now because the lights light and I can use the Ethernet port but connecting it to the internet is a different issue... Is there a way of getting to settings? so you can change ip, Netmask etc...?? I read somewhere that the default netmask on RPI is 255.255.255.255 and...

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