Hi thomasg,
I can see that what I have been able to use is exactly what you intended
in your wiki description.
So yes, I can boot a system residing on the SDHC card, however the
kernel is taken from the NAND image, ie. "your" method :-)
And that is why I in a different mail mentioned that I would like to
have the SDHC-support in u-boot, to boot completely independent systems
on a flash-card.
With presently the size of max. 8GB for a micro-SDHC, one card is able
to hold several systems, so I think such an option is a very good idea.
This is what I have in my previous listing as well, but I would like to
emphasize the following, too:
"And if u-boot had USB support implemented so that I could upload an
image from my desktop Linux straight to the flash-card without having to
boot the Neo all the way to a Linux system, that would be really
helpful, too."
If I could boot up in u-boot and specify what target-partition on the
flash-card I want to put a kernel and a rootfs, and then subsequently
boot that image, that would be great!
Peter
thomasg wrote:
Hi,
I'm the one who started the section "Booting from SDHC" in this wiki
entry.
Actually this title is wrong (what is my "fault", even it was
intended) , as the kernel is booted from NAND and loading the rootfs
isn't booting because it's done by the kernel.
As I didn't manage to do a real boot from SDHC I'd be surprised if you
managed it - and it even isn't described in the wiki entry - so my
guess is that you are referring to "my" method.
If I'm wrong please tell me and add it to the wiki, if not I just
wanted to point out that this problem still exists and there is still
no SDHC-support in u-boot.
thomasg
On Tue, May 20, 2008 at 9:38 PM, Peter Rasmussen <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
I have a SanDisk 6GB SDHC Class4 that I have been able to boot
from for a very long time, at least since some u-boot-1.3.0'ish.
The info on:
http://wiki.openmoko.org/wiki/Booting_from_SD
was actually rather helpful.
What I miss, in this regard, is:
1.The possibility to fix the kernel that I boot from, to a
partition on the flash-card.
2.The possibility to not have /etc/fstab overwritten at every
reboot, so that I can edit it and have it stay the way I want.
3. Points 1. and 2. are in order to be able to have fully
independent installations, to be able to boot up like with LILO on
a desktop Linux installation.
And if u-boot had USB support implemented so that I could upload
an image from my desktop Linux straight to the flash-card without
having to boot the Neo all the way to a Linux system, that would
be really helpful, too.
Peter
Mike Montour wrote:
Marc Bantle wrote:
It still doesn't recognize my Kinston 4GB card, which non
of the previous versions
did either, while the linux kernel does.
According to http://wiki.openmoko.org/wiki/Booting_from_SD
that seems to be a known issue (4G and up are "SDHC" rather
than "SD") but I don't see an entry for it in Bugzilla. It
might be worth filing one, including the output of the u-boot
"mmcinit" command for your card.
