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jmcla3
New Contributor I
1,124 Views

Building Debian image using 3.19 kernel

Now that we mostly have the 3.19 kernel built the way we need it, my next problem is getting it to work with Debian.

Up to this point we've been using the Debian environment we set up with the old 3.8.7 kernel. There are a few problems with out of date files, and we are seeing other problems like the segfault with libpthreads.

This time the Debian stuff isn't going too well. The kernel boots part way and then it hangs with this message:

 

[....] The mptctl module is missing. Please have a look at the README.Debian.gz.[FAI failed!

 

. ok

We are trying to use Debian 7.9. Is that a good version? Is there a newer one that works? Based on previous posts, there are apparently issues with 8.x. I also saw one post from someone saying they are using 7.3.

Can someone take a look at the steps we are following to create the Debian environment and offer suggestions on how to fix it?

Thanks.

 

1. Prepare a new SD card - format to fat32 if neccessary, copy to SD the files built with kernel found in the ./tmp/deploy/images/quark/ directory

 

image-full-quark.ext3

 

core-image-minimal-initramfs-quark.cpio.gz

 

bzImage

 

grub.efi

 

boot (directory)

2. Set up a simple vm in virtualbox, and installed a minimal debian linux image in it.

 

using Debian 7.9 net install image downloaded from here:

 

http://cdimage.debian.org/mirror/cdimage/archive/7.9.0/i386/iso-cd/debian-7.9.0-i386-netinst.iso http://cdimage.debian.org/mirror/cdimage/archive/7.9.0/i386/iso-cd/debian-7.9.0-i386-netinst.iso

unselect all optional items to install then after it boots:

 

apt-get update

 

apt-get upgrade

 

apt-get install rsync

 

apt-get install ssh

3. Create a 3.5GB empty file, and run mkfs.ext3 on it to create a filesystem

dd if=/dev/zero of=file bs=1024 count=3500000

 

mkfs.ext3 file.ext3

4. Mount that filesystem in loopback mode and rsync the root filesystem from the vm into there.

mkdir /mnt/ext3dst

 

losetup -v -f file.ext3

 

mount -t ext3 /dev/loop0 /mnt/ext3dst

 

rsync -aAXv –exclude={"/dev/","/proc/","/sys/","/tmp/","/run/","/mnt/","/media/","/lost+found","/root/","/lib/modules/*"} / /mnt/ext3dst

5. Mount the image-full-quark.ext3 file from the sd card via loopback and copy over /lib/modules/ folder

losetup -v -f image-full-quark.ext3

 

mount /dev/loop1 /mnt/ext3src

 

cp -iR /mnt/ext3src/lib/modules/3.19.8.yocto-standard /mnt/ext3dst/lib/modules

6. Unmount both loopback filesystems, and copy the new 3.5GB image file to the SD card to replace the original one

umount /mnt/ext3src

 

umount /mnt/ext3dst

7. Put SD card into Galileo and boot.

1 Reply
asss
Valued Contributor II
55 Views

Hi,

I do not think that a simple changing of kernel and kernel modules is a good way to switch to Debian, even it works in some cases.

Anyway need to compile required drivers like mptctl (RAID HBA support - no need for Galileo) or disable them in a Debian environment.

BR,

xbolshe

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