[Freedombox-discuss] corrupt FS inside image ? - Was: Re: FreedomBox Unstable Image 2012.1021 Available

[Markus Sabadello]

My Dreamplug S/N is DS2-1221-xxxxxx, and my original U-Boot version
was U-Boot 2011.06 (Oct 15 2011 - 02:02:08).
My current version is U-Boot 2012.04.01 (Jun 01 2012 - 02:17:08).

I just added the above information to the wiki:
http://wiki.debian.org/DreamPlugTesting

I've been having problems with the weekly image lately.

freedom-maker mostly works for me, with a few problems however.
When I boot from USB stick, my stick is /dev/sda and my card is /dev/sdb.
But freedom-maker I think assumes that the stick is /dev/sdc and the card
is /dev/sda.
So I always have to manually update /etc/fstab and /sbin/copy2dream.

Another thing I always have to do manually is add the hwaddress settings to
my /etc/network/interfaces.

BTW my Guruplugs still work fine with with freedom-maker.

Markus

On Sat, Nov 10, 2012 at 9:09 PM, Nick M. Daly <nick.m.daly at gmail.com> wrote:

> Olivier Berger writes:
> >
> > "Nick M. Daly" writes:
> >>
> >> Olivier Berger writes:
> >>
> >>> I've tried and install the contents of the
> >>> freedombox-unstable_2012.1021_dreamplug-armel-card.img image to a 4GB
> >>> SD card, which was previously partitioned.
> >>>
> >>> I've tried using kpartx to locally mount the contents of the immage
> >>> without success...
> >>
> >> Just use dd.  See the "To Use It" section of FreedomMaker's README [0]
> >> to load the image on to the DreamPlug's internal microSD card.
> >
> > OK, I can do that... but still... what if the contents of the image is
> > broken ? Normally, I'd expect the FS image to be mountable, right ?
>
> It works fine over losetup and mount.
>
> # losetup /dev/loop0 freedombox-unstable_2012.1021_dreamplug-armel-card.img
>
> # mount /dev/loop0 -t ext2 -o offset=135266304 /media/freedom/
>
> The offset is 128 MiB + 1 MiB (in bytes), which is the start of the ext2
> partition.  To mount the 128 MiB FAT partition, specify an offset of 1
> MiB.
>
> # umount /media/freedom/
>
> # losetup -d /dev/loop0
>
> > Is there a test of the partition's FS before generating the image ?
>
> Yup.  The image is created from a formatted SD card to (hopefully) preclude
> partition issues.
>
> >> If you don't have access to a JTAG some of the older images will boot
> >> smoothly on the DreamPlug's default bootloader, but I don't recall which
> >> image exactly broke it (I think it was one of the 2012.07* images?).
> >
> > Yeah, that's the point... there doesn't seem to be some documentation
> > about which image works for which hardware in the (debian) wiki,
> > unfortunately.
>
> Feel free to start one.  I'm trying to finish other work this weekend.
> The information you need follows:
>
> There are at least two known versions of DreamPlugs that are somewhat
> incompatible (the wireless hardware is different, IIRC).  I do not
> believe these hardware differences affect whether the DreamPlug boots.
>
> You can tell which DreamPlug version you have by reading the serial
> number.
>
> - DS2-1112 :: Initial DreamPlug release.
> - DS2-1113 :: Updated DreamPlug release.
>
> If other DreamPlug series exist, they are unknown to me, so I can't
> speak to their ability to boot images.
>
> The uboot version (and its configuration) as delivered on the plug
> affect what images it can boot.  Vendors configure uboot differently, so
> all I can speak to is DreamPlugs delivered by GlobalScale, because those
> are the only ones I've had experience with.  In other words, image
> booting incompatibilities are related to the uboot version and
> configuration on the plug itself.
>
> - Images before the 0.1 release boot smoothly on stock DreamPlugs from
>   GlobalScale.
>
> - Images on or after the 0.1 release (2012-0820) need the 2012.04.01 or
>   later version of uboot from Debian Wheezy.
>
> Here're the tables you're looking for.  Please put them on the wiki.
>
> | Vendor      | Model    | uboot   |
> |-------------+----------+---------|
> | GlobalScale | DS2-1112 | Default |
> | GlobalScale | DS2-1113 | Default |
>
> | uboot Vendor | uboot Version       | Image Versions    |
> |--------------+---------------------+-------------------|
> | GlobalScale  | The Default (?)     | Pre 0.1           |
> | Debian       | 2012.04.01 (Wheezy) | Pre 0.1, Post 0.1 |
>
> Bdale has not, to my knowledge, published any images himself.  The
> weekly images considered "Pre 0.1" are the 2012.0819 image and prior
> images.  The "Post 0.1" images are the 2012.0903 image and later images.
>
> The only non-DreamPlug hardware I can speak to is the GuruPlug.  The
> GuruPlug will boot images built with these makefile options:
>
>     make MACHINE=guruplug plugserver-image
>
> And that's all I know on the subject.
>
> Nick
>
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