Re: Re: OE build files

Hello Patrick,

Thursday, February 8, 2007, 12:05:57 PM, you wrote:

> thanks that helps me a lot. i´ll try to build a new image today. it
> looks like i have to build a new intrd also.

> could someone give me some infos how to build such a file?
> i know its a ext2 image i can mount it via mount -o loop -t ext3....
> but there are not all files in /lib/modules/<kernelversion>/ which are
> required?
> is there some buildscript available?

  You don't need anything special apart from what OE builds for you.
There's no need for initrd to boot any developed 2.6 kernel port, and
likely, no need for any port at all. The only unavoidable case when
you need to build driver as a module (and put it into initrd) is when it
loads firmware. So, if you'd want to boot over WiFi, you'd have to do
that. There're also driver dependencies issues pop up regularly, but
so far for all cases we were able to solve them on kernel level,
producing static kernel capable of loading rootfs from any common
source like ramdisk, SD/CF card, or NFS (over USB).

  OE currently doesn't support building boot initrd's, exactly per the
reason described - you can easily get around it. Of course, you can
use any OE-built image as rootfs initrd, i.e. boot from it as ramdisk.
For example, I had no problems booting with haret 0.4.7 from 40Mb OPIE
initramfs image. Still for development, the most convenient way is NFS
booting. If you don't have that setup, I suggest investing half and
hour into that.

> Jake Grimmett wrote:
>> Hi Patrick,
>>
>> I've got my serial port wired up for you - it looks like a simple mistake to
>> fix - you appear to be using the 2.6.19-hh10 kernel with the 2.6.19-hh9
>> modules...
>>
>> i.e.
>>
>> Linux version 2.6.19-hh10 (pat_at_tux4u.skynet) (gcc version 4.1.1) #
>> CPU: XScale-PXA270 [69054117] revision 7 (ARMv5TE), cr=0000397f
>> Machine: Dell Axim X50/X51(v)
>> *snip*
>> Kernel command line: root=/dev/ram0 rw ramdisk_size=12288 mem=64M keepinitrd
>> in8
>> *snip*
>> checking if image is initramfs...it isn't (no cpio magic); looks like an
>> initrd
>> *snip*
>> RAMDISK driver initialized: 16 RAM disks of 12288K size 1024 blocksize
>> *snip*
>> Mounting /proc...
>> Trying to mount the fat32 SD card... FATAL: Could not
>> load /lib/modules/2.6.19-y
>> modprobe: FATAL: Could not load /lib/modules/2.6.19-hh10/modules.dep: No such
>> fy
>> mount: Mounting /dev/mmc/blk0/part1 on /mnt/sdcard failed: No such device
>> failed!
>> Dropping to a shell and enabling the telnet daemon
>> /bin/sh: can't access tty; job control turned off
>> / # mmcblk0: mmc0:0d93 SH256 249856KiB
>> mmcblk0: p1
>>
>> on the file system I can see:
>> /lib/modules/2.6.19-hh9/modules.dep
>> but no
>> /lib/modules/2.6.19-hh10
>>
>> hope this lets you build a new image asap!
>>
>> ta ta
>>
>> Jake

-- 
Best regards,
 Paul                            mailto:pmiscml_at_gmail.com