[yocto] Any Linux/Yocto Image Installer (for target system)

[Raymond Yeung]

Thanks Ross.  I found init-install.sh that I could relate to run-time installation offered at BOOT time.  And I'd used it to install image on SSD from USB drive.


Would you or anyone know where the script that formats/generates .hddimg?  I'd like to see if we could customize the layout of this image to multiple partitions.  The reason I'm thinking this way is that our real H/W (vs. the evaluation platform I've been using) doesn't support USB port, thus no run-time installer.


________________________________
From: Burton, Ross <ross.burton at intel.com>
Sent: Monday, July 9, 2018 2:02 AM
To: Raymond Yeung
Cc: yocto at yoctoproject.org
Subject: Re: [yocto] Any Linux/Yocto Image Installer (for target system)

The relevant recipes are in meta/recipes-core/initrdscripts/.

Ross

On 9 July 2018 at 04:10, Raymond Yeung <rksyeung at hotmail.com<mailto:rksyeung at hotmail.com>> wrote:

This brings up the next logical question - where is the installer?  I'd already done a grep and looked into the volume of output.  You could ask why don't I read the code.  Yes, only if I know what I'm reading is the "correct" file/code.  Otherwise, I could be spending a lot of time reading a lot of unrelated codes.


If I did "dd" of .hddimg to SSD, there's only 1 partition.  If I could locate where the logic is that generates this .hddimg file, perhaps I could figure out how it creates its single partition, and perhaps add one or more partitions to it as well.


________________________________
From: Burton, Ross <ross.burton at intel.com<mailto:ross.burton at intel.com>>
Sent: Saturday, July 7, 2018 3:39 PM
To: Raymond Yeung
Cc: yocto at yoctoproject.org<mailto:yocto at yoctoproject.org>
Subject: Re: [yocto] Any Linux/Yocto Image Installer (for target system)

The easiest thing would be to edit the installer script that goes into
the hddimg to create your extra partitions and whatever else you want
done.

Ross

On 6 July 2018 at 22:52, Raymond Yeung <rksyeung at hotmail.com<mailto:rksyeung at hotmail.com>> wrote:
> Is there any installer that I could download along with the .hddimg (or
> .iso) image to the RAM, invoke the installer, so we could have a bootable
> image installed on a SSD?
>
>
> History:
>
> I can already create USB live image with dd and .hddimg.  I could also dd
> the .hddimg onto SSD and make it bootable.  The problem is that I need
> multiple partitions on my 250MB SSD, some reserved for other purposes.
>
>
> I find that when booting up with USB running SysLinux, I could install GRUB,
> vmlinuz, along with boot.img and core.img under /boot directory, and the
> rootFs under root (i.e. '/') directory.  That's 4 partitions.  I believe I
> could resize the largest partition after installation to do what I want.
>
>
> Is there a way to do this manually, possibly with a utility or a shell
> script?
>
>
> Thanks,
>
> Raymond
>
>
> --
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