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61  Linux Stuff / Kernel / Re: 3.0.3 new kernel available on: August 18, 2011, 05:00:53 PM
I'm guessing there must have been some sort of issue with 3.0.2, since it was only out for a day or so before they released 3.0.3.
Possibly not.  3.0.3 was released in front of a live audience at LinuxCon.
62  Hardware and U-Boot firmware / U-Boot stuff / Re: DENX Open Das U-Boot on SheevaPlug on: August 05, 2011, 11:02:02 AM
After a ubifs is mounted...
...but first it needs to be created as a file system.   I don't think I can just create the device then run "mkfs -t ubi".
63  Hardware and U-Boot firmware / U-Boot stuff / Re: DENX Open Das U-Boot on SheevaPlug on: August 04, 2011, 05:34:07 PM
You don't need a separate filesystem for /boot.
I do if I want the rest of the files to be on an external USB drive through a hub.  And I don't want things like /var to be on a solid-state device that can wear out (I've had an SDHC card get to the read-only state, which is why I moved to the USB drive).
Quote
It seems to load quicker from ubifs.
Yes, ubifs is quicker the jffs2 (apparently) but the older U-boots don't have any ubiload command.
64  Hardware and U-Boot firmware / U-Boot stuff / Re: DENX Open Das U-Boot on SheevaPlug on: August 03, 2011, 05:14:08 PM
I'm curious, why do you need a separate ubifs partition for /boot?
Everything else is on an external USB drive, but there are/were/could be problems trying to boot from USB (which is through a hub), so at the moment I have /boot left on the SDHC card.
But that seems a bit of a waste of a 16GB SDHC card (which also juts out from the box), so if I were able to use the NAND instead (with ubifs - not jffs2) I'd free up the SDHC card and make some use of the internal NAND.
65  Hardware and U-Boot firmware / U-Boot stuff / Re: DENX Open Das U-Boot on SheevaPlug on: August 02, 2011, 03:47:10 PM
I can now boot from a ubifs partition on MTD NAND.
I don't suppose anyone has any details on how to create/setup a file-system on NAND?

In particular, how to create (say) 100MB and 400MB ubifs partitions, put /boot onto the former and leave the latter as and empty but mountable (writeable) file-system?
66  Linux Stuff / Kernel / Re: 3.0 new kernel available on: July 23, 2011, 05:12:22 PM
The mirror may not always be current.
It hasn't shown an update for a while.   It hasn't yet got any of the 2.6.39.x series.
67  Linux Stuff / General Linux questions / Re: 1TB drive - can only access a small portion on: July 02, 2011, 05:46:11 PM
This seems to confirm it is not the WB MyBook 1TB drive but something else in my configuration.
What is that configuration.
Where have you mounted the drive? ((Evidence?)
You mention network access - what sort of network access?
What happens if you access the (mounted) file-system directly from the Plug?
68  Linux Stuff / Kernel / Re: 2.6.39.2 new kernel available on: June 30, 2011, 03:18:55 PM
2.6.39.2 is now available (has been for a few days now, didn't want to mention it earlier since I've been fiddling with my boot sequence).
It hasn't made it to the mirror yet.
69  Linux Stuff / General Linux questions / Re: 1TB drive - can only access a small portion on: June 28, 2011, 05:05:15 PM
Ah - you said a USB drive.  IIRC a MyBook is weird and has 4 partitions (and a specific driver for Windows?).  So you need to do multiple LUN scanning.
e.g.
http://www.linuxquestions.org/questions/linux-hardware-18/problems-with-wd-my-book-1tb-external-drive-564130/
http://www.linuxforums.org/forum/red-hat-fedora-linux/104572-mount-wd-my-book-usb-drive.html
70  General Category / Application ideas and development Q/A / Re: Sheevaplug: Send Email when process is not running on: June 23, 2011, 05:32:23 PM
Assuming you have mail setup to work...

Run a cron job everty 5 mins that:

Checks the process is running. 
If not:
   if there is no NO_PROCESS file, send a mail
   touch a NO_PROCESS file
if it is there
   delete any NO_PROCESS file.
71  Hardware and U-Boot firmware / Hardware / Re: Maximum size of SD card for DreamPlug on: June 13, 2011, 05:03:04 PM
Thanks a lot, Spinfex.  I will get a 32GB SDHC and test if it is readable from DreamPlug.  I didn't know that there is an SDXC which can be up to 2TB.  I haven't seen it sold anywhere.
Part of the spec for SDXC is that the file-system has to be xfat(?), which is a proprietary Microsoft file-system.  There are, I believe, some digital camera that support it.
72  Hardware and U-Boot firmware / Hardware / Re: New plug - D2 on: May 29, 2011, 05:05:31 PM
Here you go:

<http://www.newegg.com/Product/Product.aspx?Item=N82E16813154020&cm_re=e350-_-13-154-020-_-Product>

You do have to add a ram stick and maybe a USB stick wireless solution if you need that
And a case, and a power supply???
73  Linux Stuff / Kernel / Re: mmc support in 2.6.37 and 2.6.38 on: May 08, 2011, 02:18:58 PM
That's not an fstab issue - it's a oot option issue (cat /proc/cmdline to see what you are using).
Ah - you already have - your problem is something else.  I got carried away with the UUID usage.
FWIW, my /etc/fstab contains:
Code:
/dev/mmcblk0p1  /boot   ext2    relatime 1 1
and I end up with
Code:
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/mmcblk0p1           99649      9436     85068  10% /boot
and I'm using 2.6.38.5.  I've had no problem with any 2.6.37* or 2.6.38* kernel (since if I did I wouldn't have been able to change it easily)
74  Linux Stuff / Kernel / Re: mmc support in 2.6.37 and 2.6.38 on: May 08, 2011, 02:10:19 PM
Quote
VFS: Cannot open root device "mmcblk0p2" or unknown-block(2,0)
Please append a correct "root=" boot option; here are the available partitions:
That's not an fstab issue - it's a boot option issue (cat /proc/cmdline to see what you are using).

There was a change in this area recently (indeed - it was in 2.6.37)
Quote
commit b5af921ec02333e943efb59aca4f56b78fc0e100
Author: Will Drewry <wad@chromium.org>
Date:   Tue Aug 31 15:47:07 2010 -0500

    init: add support for root devices specified by partition UUID
   
    This is the third patch in a series which adds support for
    storing partition metadata, optionally, off of the hd_struct.
   
    One major use for that data is being able to resolve partition
    by other identities than just the index on a block device.  Device
    enumeration varies by platform and there's a benefit to being able
    to use something like EFI GPT's GUIDs to determine the correct
    block device and partition to mount as the root.
   
    This change adds that support to root= by adding support for
    the following syntax:
   
      root=PARTUUID=hex-uuid
   
    Signed-off-by: Will Drewry <wad@chromium.org>
    Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
but before that it wouldn't have worked either, unless you were using an initrd image.
75  Linux Stuff / General Linux questions / Re: aplay outputs 'Invalid value for card' on: April 26, 2011, 05:13:10 PM
I have a SheevaPlug (not DreamPlug) and these are the notes of how I got audio working (on Debian Squeeze).
Not much, but it might be worth trying these...
Quote
In order to get sound working I had to:
   
a) Run, as root:

 alsactl init 1

   The USB sound device ends up as device 1, even though a lot of things
   seem to default to using 0.

b) Run, as root:

 service alsa-utils start

   This was *not* needed after reboots.

c) Add myself to the audio group, as the devices get set to that group
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