SD cards known to work with Ubuntu 11.04

[Karel Gardas]

Hello,

there are really a lot of posts about SD cards not working with
Pandaboard in this discussion group. As a potential future user of the
board, I'm curious if the problem is really that big or it's just a
size of pandaboard community which causes this.
Anyway, I'm curious are there any known brands/card types which are
known to work well with Pandaboard A2/A3 and Ubuntu 11.04? I would
certainly try to order supported one to prevent issues.

Thanks!
Karel

[mscdex]

FWIW, I have an A2 with a Sandisk Ultra II Class 4 32gb and Ubuntu
11.04 installed and worked just fine for me.

[GrueMaster]

I have the following SD cards:
Micro Center 16G Class 6
Kingston 16G Class 4
Transcend 8G Class 10
Transcend 16G Class 10
Kingston 8G Class 4Sandisk 4G class 2

I also have in microSD:
Sandisk 16G Class 4
Transcend 4G class 6

Hope that helps.

[Alex_Stevens]

I think we've solved all (or part) of the problem... In kind of a
superficial way.
One user, Xynix, has found that when he Gunzip's and dd's the image to
the card on Mac OSX... the card boots fine.
However, when using the Ubuntu 11.04 equivalent of gunzip and dd, the
image encounters the problem.

So there may be a bug within gunzip and/or dd?

My version of dd is from coreutils within Ubuntu 11.04 which is at
version 8.5-1ubuntu6.
And gzip is at version 1.3.12-9ubuntu1.1 within Ubuntu 11.04.

GrueMaster, since your cards are working, what versions of dd and gzip
are you using?

[GrueMaster]

Interesting theory. My desktop is running 10.04 LTS, but my netbook
is running 11.04. I have used both to flash sd cards, but mostly my
desktop. Tomorrow (9 June), I will try flashing with my netbook
again, using my new 16G class 10 card.

Tobin

[Karel Gardas]

Interesting theory, I'm using Solaris 11 Express's dd and provided
gunzip and also get to SD card issue discussed in great length on this
board.
If someone complain about solaris, then on some of another tries I've
used ubuntu 10.04.2 LTS installed and run on i.MX53 Quick Start
Board...

Karel

[Karel Gardas]

Alex,

could you be so kind and unpack the image file on your Ubuntu and
ditto on you Mac and then checksum both and compare checksums? I think
this might give you idea if gunzip is wrong or not. Honestly speaking
I would expect gunzip to be wrong here. It's too used software
anyway...

Thanks!

Karel

On Jun 8, 4:28 am, Alex_Stevens <akava...@gmail.com> wrote:

[Alex_Stevens]

Karel,

Sorry, I don't have the Mac, but will have to wait until the Mac user
comes on, and ask him to do a checksum comparison.
I tried gzip version 1.4, to no avail. And unusually enough, a few
times, Ubuntu 11.04's default Right Click -> "Extract Here" function
worked, but on second boot of the board, it would once again fail
(can't remember the exact error). But the "Extract Here" method would
output a .raw file instead of .img.

Cheers,
Alex

[Alex_Stevens]

Received feedback from my friend using his Mac. Bad news, checksums
are the same, so gzip is all good.

Ubuntu 11.04
gzip 1.3.12
md5sum (GNU coreutils) 8.5

Ubuntu Commands:
gunzip -c ubuntu-11.04-preinstalled-headless-armel+omap4.img.gz >
smthg.img
md5sum smthg.img
Ubuntu Resulting Checksum:
e220a1b5486be9de8b2e95ba04160142

Mac OSX 10.5.6 (leopard)
gunzip 1.3.10

Mac OSX Commands:
gunzip ubuntu-11.04-preinstalled-headless-armel+omap4.img.gz >
smthg.img
md5 smthg.img
Mac OSX Resulting Checksum:
e220a1b5486be9de8b2e95ba04160142

[e3bble]

hi all i tray to unrar(with winrar 4.01) ubuntu-11.04-preinstalled-
netbook-armel+omap4.img.gz and I get .raw file, but like written
in : https://wiki.ubuntu.com/ARM/OmapNetbook I`m need ubuntu-11.04-
preinstalled-netbook-armel+omap4.img file.. how to get it?

And i use 16gb class2 micro SD HC with SD adapter and WIn32 disk
Imager say me that disk not enough space ..



what I`m was doing wrong?

[Brian C]

FWIW, when booting Ubuntu 11.10 on a Rev A3 Pandaboard from an 8GB Class 10 SanDisk Extreme SD Card, I was hitting a problem where the board booted to the point where it says “Resizing, please wait…” and then hangs. 

The SD Card image that didn't boot properly was programmed by running the following command from Ubunut 11.04 (as per https://wiki.ubuntu.com/ARM/OmapNetbook ) :
   

sudo sh -c 'zcat ./ubuntu-netbook-10.10-preinstalled-netbook-armel+omap4.img.gz |dd bs=4M of=/dev/sde ; sync'

I managed to overcome this by burning the SD Card image using Win32ImageWriter (from http://launchpad.net/win32-image-writer ) instead of burning the SD Card from Ubuntu 11.04.

• Use WinZip to extract the .raw file
• Open win32ImageWriter and browse to the .raw file
• Insert a USB-stick SD card writer with the SD Card in it
• Click the Write button

With this SD card image, the pandaboard boots cleanly!

Previously, I was able to burn Ubuntu 11.04 into an 8GB Class 10 SD Card from Duracell (made by Dane) from a laptop running Ubuntu 10.04 using the same sudo command, so perhaps the problem was introduced in Ubuntu 11.04?  This would line up with Alex Steven's June 7 post ...

I hope this helps...

Brian

[Robis]

really help , thanks

2011/12/7 Brian C <brianc...@gmail.com>

[guru.ro...@gmail.com]

I am having in formating my sandisk ultra class 10 16 gb microsd card to ext format. I want to make 3 partition boot ( 60 mb fat ), rootfs ( 14gb ext ), and media ( 1gb fat ). like given here http://omappedia.org/wiki/SD_Configuration   but while formatting using script my ubuntu system takes endless hours and can manage to make only fat partitions. sudo fdisk -ls command show up all three partions but dont mount the ext partition, while gparted shows that 14 gb partiton as unknown.

second thing if i use windisk image application that then it make only 3 gb partition for linux system , 60 - 70 mb boot partition but 12.5 gb is unallocated but i want it 14 gb or so for liunux file system.