I'm using a 32GB SD card, so yes it works. Has anyone tried 64GB and larger cards yet? 64 or 128GB would be insanely nice!
Eric On Fri, Jul 18, 2014 at 12:04 PM, William Hermans <[email protected]> wrote: > We use two BBB's here, and both use 16GB class 10 cards. I've heard that > 32GB works too, but no hands on. > > AS john said first you want more space( unused, or free space ) on your sd > card to help facilitate wear leveling, *AND* if you're going to be doing > lots of writing for development purposes. Move your rootfs to an NFS share. > > > On Fri, Jul 18, 2014 at 3:05 AM, William Pretty Security < > [email protected]> wrote: > >> Thanks John J >> >> >> >> >> http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book >> >> >> >> *From:* [email protected] [mailto:[email protected]] >> *On Behalf Of *John Syn >> *Sent:* Thursday, July 17, 2014 11:48 PM >> >> *To:* [email protected] >> *Subject:* Re: [beagleboard] Maximum SD card size for BBB >> >> >> >> >> >> *From: *William Pretty Security <[email protected]> >> *Reply-To: *"[email protected]" <[email protected]> >> *Date: *Thursday, July 17, 2014 at 7:58 PM >> *To: *"[email protected]" <[email protected]> >> *Subject: *RE: [beagleboard] Maximum SD card size for BBB >> >> >> >> Actually John, I've been having that exact problem ! >> >> >> >> How does 'wear leveling' work ? >> >> I have been using an external USB key as temp storage. >> >> http://en.wikipedia.org/wiki/Wear_leveling >> >> >> >> For development purposes, don't use SDCards. Rather use NFS to mount a >> rootfs on your desktop. >> >> >> >> In the field, use a read only rootfs and create a separate partition for >> storage. Flash has to erase a block before writing a byte. If you have a >> logging application, create a buffer in ram which is the size of your flash >> erase block and write data to buffer and only write the buffer to disk when >> the buffer is full. Alternatively, use a power fail detection circuitry and >> only write to SDCard on power failure. There are a lot of techniques like >> this that prolong the life of flash. >> >> >> >> Regards, >> >> John >> >> >> >> Bill >> >> >> >> >> http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book >> >> >> >> *From:* [email protected] [mailto:[email protected] >> <[email protected]>] *On Behalf Of *John Syn >> *Sent:* Thursday, July 17, 2014 10:32 PM >> *To:* [email protected] >> *Subject:* Re: [beagleboard] Maximum SD card size for BBB >> >> >> >> >> >> *From: *William Pretty Security <[email protected]> >> *Reply-To: *"[email protected]" <[email protected]> >> *Date: *Thursday, July 17, 2014 at 6:51 PM >> *To: *"[email protected]" <[email protected]> >> *Subject: *RE: [beagleboard] Maximum SD card size for BBB >> >> >> >> Quite right, but given that Ubuntu with GUI is about 3GB, isn't the other >> 13 kind of a waste ?? >> >> Flash has a finite number of writes so with wear leveling, you want to >> have a much free space as possible to prevent flash failure. If it is the >> same price, always get the bigger one ;-) >> >> >> >> Regards, >> >> John >> >> >> >> >> http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book >> >> >> >> *From:* [email protected] [mailto:[email protected] >> <[email protected]>] *On Behalf Of *John Syn >> *Sent:* Thursday, July 17, 2014 8:32 PM >> *To:* [email protected] >> *Subject:* Re: [beagleboard] Maximum SD card size for BBB >> >> >> >> >> >> *From: *William Pretty Security <[email protected]> >> *Reply-To: *"[email protected]" <[email protected]> >> *Date: *Thursday, July 17, 2014 at 4:14 PM >> *To: *"[email protected]" <[email protected]> >> *Subject: *RE: [beagleboard] Maximum SD card size for BBB >> >> >> >> You probably want about 8GB class 10 for sure. >> >> I don't know if there is a maximum size of uSD card. >> >> 16GB is about the same price as 8GB. At Amazon, 16GB class 10 is about $8. >> >> >> >> The class 4 uSD cards aren't very reliable. >> >> >> >> >> http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book >> >> >> >> *From:* [email protected] [mailto:[email protected] >> <[email protected]>] >> *Sent:* Thursday, July 17, 2014 6:05 PM >> *To:* [email protected] >> *Subject:* [beagleboard] Maximum SD card size for BBB >> >> >> >> Greetings everyone, >> >> What is the maximum size SD or SDHC flash memory card that the >> "BeagleBone Black" will support ? >> >> Also, what is the recommended speed class (e.g. Class 4, Class 10, etc.) ? >> >> Thank you in advance for your help :-) >> >> Jonmar >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> >> >> >> No virus found in this message. >> Checked by AVG - www.avg.com >> Version: 2014.0.4716 / Virus Database: 3986/7869 - Release Date: 07/17/14 >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> ------------------------------ >> >> No virus found in this message. >> Checked by AVG - www.avg.com >> Version: 2014.0.4716 / Virus Database: 3986/7863 - Release Date: 07/16/14 >> >> No virus found in this message. >> Checked by AVG - www.avg.com >> Version: 2014.0.4716 / Virus Database: 3986/7871 - Release Date: 07/17/14 >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> ------------------------------ >> >> No virus found in this message. >> Checked by AVG - www.avg.com >> Version: 2014.0.4716 / Virus Database: 3986/7863 - Release Date: 07/16/14 >> >> No virus found in this message. >> Checked by AVG - www.avg.com >> Version: 2014.0.4716 / Virus Database: 3986/7871 - Release Date: 07/17/14 >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> ------------------------------ >> >> No virus found in this message. >> Checked by AVG - www.avg.com >> Version: 2014.0.4716 / Virus Database: 3986/7863 - Release Date: 07/16/14 >> >> No virus found in this message. >> Checked by AVG - www.avg.com >> Version: 2014.0.4716 / Virus Database: 3986/7871 - Release Date: 07/17/14 >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. 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