Hello, In 20912 I purchased a Raspberry Pi B and a 4GB SD card from RS. It worked fine until I tried to upgrade my Raspian version. Basically it crashed the Raspberry pi, and wouldn't reboot. So I installed a new version of NOOBS, and the install worked fine, until the final reboot. After booting is almost complete it comes up with lots of mmc0 errors (possibly "Timeout Waiting for Hardware Interrupt on mmc0" although I will need to double check). A Google search suggested that this is because the SD card is incompatible. Which is disappointing, as I purchased it with the Raspberry Pi so I wouldn't have compatibility issues. Anyway, on the assumption that something is wrong with the SD card, are there are known good SD cards I can buy locally? The list at http://elinux.org/RPi_SD_cards is not helpful, and seems to be full of contradictions. I have read stories of people spending lots of money on SD cards and finding none of them work, so am a bit nervous about doing this myself. Thanks -- Brian May <brian@microcomaustralia.com.au>
Unaware of any such issues, I've simply been buying SanDisk Ultra 30 MB/s 8GB from my local super market, and have had no problems so far... Martin On 6 November 2014 09:20, Brian May <brian@microcomaustralia.com.au> wrote:
Hello,
In 20912 I purchased a Raspberry Pi B and a 4GB SD card from RS.
It worked fine until I tried to upgrade my Raspian version. Basically it crashed the Raspberry pi, and wouldn't reboot.
So I installed a new version of NOOBS, and the install worked fine, until the final reboot. After booting is almost complete it comes up with lots of mmc0 errors (possibly "Timeout Waiting for Hardware Interrupt on mmc0" although I will need to double check). A Google search suggested that this is because the SD card is incompatible. Which is disappointing, as I purchased it with the Raspberry Pi so I wouldn't have compatibility issues.
Anyway, on the assumption that something is wrong with the SD card, are there are known good SD cards I can buy locally?
The list at http://elinux.org/RPi_SD_cards is not helpful, and seems to be full of contradictions.
I have read stories of people spending lots of money on SD cards and finding none of them work, so am a bit nervous about doing this myself.
Thanks -- Brian May <brian@microcomaustralia.com.au>
_______________________________________________ luv-main mailing list luv-main@luv.asn.au http://lists.luv.asn.au/listinfo/luv-main
-- ================================================================= Martin Paulo, BSc. Software Developer Tel : +61-3-9434 2508 (Home) Tel : 04 205 20339 (Mobile) Site: http://www.thepaulofamily.net "Nobody goes there any more. It's too crowded" - Yogi Berra.
Anyway, on the assumption that something is wrong with the SD card, are there are known good SD cards I can buy locally? The list at http://elinux.org/RPi_SD_cards is not helpful, and seems to be full of contradictions. I have read stories of people spending lots of money on SD cards and finding none of them work, so am a bit nervous about doing this myself. Thanks -- Brian May I bought one of those (chinese) ssd's that kogan had on special some time ago and am running ubuntu on it without a glitch. It just worked. Roger
On 06/11/14 10:36, Roger wrote:
Anyway, on the assumption that something is wrong with the SD card, are there are known good SD cards I can buy locally? The list at http://elinux.org/RPi_SD_cards is not helpful, and seems to be full of contradictions. I have read stories of people spending lots of money on SD cards and finding none of them work, so am a bit nervous about doing this myself. Thanks -- Brian May
I bought one of those (chinese) ssd's that kogan had on special some time ago and am running ubuntu on it without a glitch. It just worked. Roger _______________________________________________ luv-main mailing list luv-main@luv.asn.au http://lists.luv.asn.au/listinfo/luv-main
Am thinking of getting another 2 when they go on special again and run latest Fedora and BSD on each. Roger
On Thu, 6 Nov 2014, Brian May wrote:
Anyway, on the assumption that something is wrong with the SD card, are there are known good SD cards I can buy locally?
The list at http://elinux.org/RPi_SD_cards is not helpful, and seems to be full of contradictions.
Make sure your power supply is good.
I have read stories of people spending lots of money on SD cards and finding none of them work, so am a bit nervous about doing this myself.
People buying lots of SD cards and none of them working? What's the one common thing amongst all those SD cards? The power supply. -- Tim Connors
On 6 November 2014 18:04, Tim Connors <tim.w.connors@gmail.com> wrote:
On Thu, 6 Nov 2014, Brian May wrote:
Anyway, on the assumption that something is wrong with the SD card, are there are known good SD cards I can buy locally?
The list at http://elinux.org/RPi_SD_cards is not helpful, and seems to be full of contradictions.
Make sure your power supply is good.
+1 Actually, +lots. I had all kinds of issues with SD card corruption, and HDMI flickering, even tried a couple of different USB power supplies. Eventually bought the damn officially recommended one from element14, and then everything was fine after that. My take on this is that the raspberry pi has cheaped out considerably on power filtering capacitors as it seems even the slightest ripple or voltage fluctuation causes bad effects on it, when other devices (cubieboard, radxa rock, beaglebone) will run fine on the same source.
I have read stories of people spending lots of money on SD cards and finding none of them work, so am a bit nervous about doing this myself.
People buying lots of SD cards and none of them working? What's the one common thing amongst all those SD cards? The power supply.
Oh, one other thing -- I found that overclocking the raspberry pi caused me sd card corruption too, so if you're hitting issues, try going back to stock speeds. T
Oh dear god, corporate world has been getting to me. Starting to top-post by default, but occasionally catching myself in time... On Fri, 7 Nov 2014, Toby Corkindale wrote:
I have read stories of people spending lots of money on SD cards and finding none of them work, so am a bit nervous about doing this myself.
People buying lots of SD cards and none of them working? What's the one common thing amongst all those SD cards? The power supply.
Oh, one other thing -- I found that overclocking the raspberry pi caused me sd card corruption too, so if you're hitting issues, try going back to stock speeds.
Interesting. Might still be a power supply issue - more switching transients at higher clock speed. I had overclocked mine, and was using the original SD card I bought from element 14. I loaded munin onto it, and after a while, the latency was increasing to 1 second. I blew it away (not that SD cards support TRIM) and rebuilt it on btrfs, and the response time started increasing to 10 seconds after a few days (the graph almost looked log-linear, ie exponentially increasing latencies as it ran out of blocks to remap to) before it finally went read-only corrupt. The replacement card is working a lot better several months on. But I advocate putting munin on (turn copious logging and logfile sync etc off!) and monitoring disk latencies on all your systems. A Scary Devil Monk this morning showed his munin graphs of a 2 disk system pre- and post- a power failure. His disk whose latencies immediately went up by a factor of 10 turned out to have been a RMA replacement from only 9 months ago. -- Tim Connors
On 6 November 2014 18:04, Tim Connors <tim.w.connors@gmail.com> wrote:
Make sure your power supply is good.
I believe my power supply should be good. As it it was working fine before the upgrade, and there were no signs of problems. However, thanks for the suggestion, will try other power supplies, and see what happens. -- Brian May <brian@microcomaustralia.com.au>
On 06/11/14 09:20, Brian May wrote:
Hello,
In 20912 I purchased a Raspberry Pi B and a 4GB SD card from RS. [...] I have a couple of Pis (Pi's ?) and both have 8GB Patriot LX series. The newest one had corruption issues 5 weeks ago and I installed anew (because I hadn't made a recent backup). Last night I found it was again corrupt, but this time I had the backup image, which failed to boot. Further cloning and image comparison indicated that the SD card was not writing cleanly. I repeated the clone with a Sandisk Extreme and all is well. Time to see if I can get anywhere with Patriot's 5 year warranty offer.
Anyone know of a usb/disk test program like the memtest86 program?
Allan Duncan writes:
In 20912 I purchased a Raspberry Pi B and a 4GB SD card from RS. I have a couple of Pis (Pi's ?) and both have 8GB Patriot LX series. [...] Anyone know of a usb/disk test program like the memtest86 program?
In some (most?) cases the SD stack does not expose direct MTD access, only block access via an FTL. AFAICT that means neither linux nor userland can do any kind of meaningful test of the SD card, short of destruct testing. For "real" disks, you can talk SMART to the disk controller & ask it to run self tests &c. I've never seen an SD stack talk SMART, but I guess I never really looked.
participants (7)
-
Allan Duncan -
Brian May -
Martin Paulo -
Roger -
Tim Connors -
Toby Corkindale -
trentbuck＠gmail.com