Re: [yocto] Multiple partitions in drive image
Hello Mark, On Mon, 2012-10-15 at 14:19 -0500, Mark Hatle wrote: Is the code you used for the dynamic fstab, partition map, and bootloader setup and image creation available anywhere? I expect it isn't too difficult to create, but if there is something to start with it would be useful. My layer contains parts which I cannot put on the Internet. Give me a few days I'll split out those parts, make an usable example and put them up somewhere. -- Joshua Immanuel HiPro IT Solutions Private Limited http://hipro.co.in signature.asc Description: This is a digitally signed message part ___ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
Re: [yocto] Multiple partitions in drive image
Hello Jonathan, On Fri, 2012-10-12 at 21:42 +, Jonathan Haws wrote: What I am trying to do is have Poky build me an image that I can just 'dd' to a SSD and hook up to the system to boot. Since that image will also only be only ~250MB or so, I would like to have Poky generate an image containing multiple partitions - a small one containing the boot files, then the rest of the image dedicated to storage. Is that possible? Yes. It is possible. I have done the following in order to generate image with multiple partitions. 1. I wrote a custom image_types.bbclass in order to generate multiple partition images (say /, /var etc) 2. Wrote a bbappend for base-files recipe to generate custom fstab file with required partition's mount options 3. Extended grub-native recipe to generate core.img and boot.img using grub-mkimage for target platform 4. Wrote a python task to join all these generated images (boot, core and filesystem images) and embedded the partition table structure into it. 5. Added this task to my image recipe after the 'do_rootfs' task This way we can generate a custom image with the required partitions. -- Joshua Immanuel HiPro IT Solutions Private Limited http://hipro.co.in signature.asc Description: This is a digitally signed message part ___ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
Re: [yocto] Multiple partitions in drive image
On Fri, 2012-10-12 at 21:42 +, Jonathan Haws wrote: What I am trying to do is have Poky build me an image that I can just 'dd' to a SSD and hook up to the system to boot. Since that image will also only be only ~250MB or so, I would like to have Poky generate an image containing multiple partitions - a small one containing the boot files, then the rest of the image dedicated to storage. Is that possible? Yes. It is possible. I have done the following in order to generate image with multiple partitions. 1. I wrote a custom image_types.bbclass in order to generate multiple partition images (say /, /var etc) 2. Wrote a bbappend for base-files recipe to generate custom fstab file with required partition's mount options 3. Extended grub-native recipe to generate core.img and boot.img using grub-mkimage for target platform 4. Wrote a python task to join all these generated images (boot, core and filesystem images) and embedded the partition table structure into it. 5. Added this task to my image recipe after the 'do_rootfs' task This way we can generate a custom image with the required partitions. --- Awesome, I will take a look at this. Thanks! ___ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
Re: [yocto] Multiple partitions in drive image
On 10/15/12 1:59 AM, Joshua Immanuel wrote: Hello Jonathan, On Fri, 2012-10-12 at 21:42 +, Jonathan Haws wrote: What I am trying to do is have Poky build me an image that I can just 'dd' to a SSD and hook up to the system to boot. Since that image will also only be only ~250MB or so, I would like to have Poky generate an image containing multiple partitions - a small one containing the boot files, then the rest of the image dedicated to storage. Is that possible? Yes. It is possible. I have done the following in order to generate image with multiple partitions. 1. I wrote a custom image_types.bbclass in order to generate multiple partition images (say /, /var etc) 2. Wrote a bbappend for base-files recipe to generate custom fstab file with required partition's mount options 3. Extended grub-native recipe to generate core.img and boot.img using grub-mkimage for target platform 4. Wrote a python task to join all these generated images (boot, core and filesystem images) and embedded the partition table structure into it. 5. Added this task to my image recipe after the 'do_rootfs' task This way we can generate a custom image with the required partitions. Recently a we've been talking about how we could do this. Specifically how to construct a disk image that can just be DD'ed including bootloader, partitioning and multiple partitions. Is the code you used for the dynamic fstab, partition map, and bootloader setup and image creation available anywhere? I expect it isn't too difficult to create, but if there is something to start with it would be useful. --Mark ___ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto ___ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
Re: [yocto] Multiple partitions in drive image
On 2012-10-15 13:19, Mark Hatle wrote: On 10/15/12 1:59 AM, Joshua Immanuel wrote: Hello Jonathan, On Fri, 2012-10-12 at 21:42 +, Jonathan Haws wrote: What I am trying to do is have Poky build me an image that I can just 'dd' to a SSD and hook up to the system to boot. Since that image will also only be only ~250MB or so, I would like to have Poky generate an image containing multiple partitions - a small one containing the boot files, then the rest of the image dedicated to storage. Is that possible? Yes. It is possible. I have done the following in order to generate image with multiple partitions. 1. I wrote a custom image_types.bbclass in order to generate multiple partition images (say /, /var etc) 2. Wrote a bbappend for base-files recipe to generate custom fstab file with required partition's mount options 3. Extended grub-native recipe to generate core.img and boot.img using grub-mkimage for target platform 4. Wrote a python task to join all these generated images (boot, core and filesystem images) and embedded the partition table structure into it. 5. Added this task to my image recipe after the 'do_rootfs' task This way we can generate a custom image with the required partitions. Recently a we've been talking about how we could do this. Specifically how to construct a disk image that can just be DD'ed including bootloader, partitioning and multiple partitions. Is the code you used for the dynamic fstab, partition map, and bootloader setup and image creation available anywhere? I expect it isn't too difficult to create, but if there is something to start with it would be useful. There are a lot of examples for this - try looking at meta-fsl-arm it supports a 'sdcard' image type which is what you are looking for. git:://github.com/Freescale/meta-fsl-arm.git -- Gary Thomas | Consulting for the MLB Associates |Embedded world ___ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
[yocto] Multiple partitions in drive image
What I am trying to do is have Poky build me an image that I can just 'dd' to a SSD and hook up to the system to boot. Since that image will also only be only ~250MB or so, I would like to have Poky generate an image containing multiple partitions - a small one containing the boot files, then the rest of the image dedicated to storage. Is that possible? Is there a better way to go about this? Once I have my images built (hddimg, ext3, cpio.gz, iso) how are those typically put onto a disk drive for use on hardware? Most BSPs I have looked at use 'dd', but I am guessing there is a better way... Thanks! Jonathan ___ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
Re: [yocto] Multiple partitions in drive image
Jonathan,
For what hardware are you building? It depends on the hardware how you need
to layout the file system on the boot device. YP provides you with a kernel
image and a root file system image and eventually, dependent on the
hardware, with bootloaders in ${TMPDIR}/deploy/images.
Rudi
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Re: [yocto] Multiple partitions in drive image
This is for an ADLGS45 board from Advanced Digital Logic. It has a Core2 Duo
with an Intel GS45 chipset. I have the kernel and everything booting just find
using the hddimg file generated (and found in tmp/deploy/images), however that
is wasting a lot of space on that drive, since the image is only 250MB (and the
drive is 120GB).
If I can avoid going through the hassle of installing GRUB and copying over the
root FS (i.e. wrap it into a single 'dd' command) that would be ideal because
eventually this will be turned over to a tech who knows nothing about GRUB or
anything else and just (somewhat) follows a manual.
Thanks,
Jonathan
From: rstr...@linuxfoundation.org [rstr...@linuxfoundation.org] on behalf of
Rudolf Streif [rudolf.str...@linux.com]
Sent: Friday, October 12, 2012 16:13
To: Jonathan Haws
Cc: yocto@yoctoproject.org
Subject: Re: [yocto] Multiple partitions in drive image
Jonathan,
For what hardware are you building? It depends on the hardware how you need to
layout the file system on the boot device. YP provides you with a kernel image
and a root file system image and eventually, dependent on the hardware, with
bootloaders in ${TMPDIR}/deploy/images.
Rudi
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