* [meta-rauc] How to generate update bundle: With genimage or with recipe?
@ 2022-11-21 12:20 BAUER Bernd
2022-11-22 19:28 ` Enrico Jörns
0 siblings, 1 reply; 2+ messages in thread
From: BAUER Bernd @ 2022-11-21 12:20 UTC (permalink / raw)
To: meta-rauc
Hi!
I use genimage for image generation.
This is an A/B system.
The bootloader is u-boot and switching the root partitions already works.
Looks something like this...
8<------------------------------------
image systemA.ext4 {
size = 512M
ext4 {
label = "systemA"
}
mountpoint = "/"
}
image systemB.ext4 {
size = 512M
empty = true
ext4 {
label = "systemB"
}
}
image log.ext4 {
size = 128M
empty = true
ext4 {
label = "log"
}
}
image app.ext4 {
size = 128M
empty = true
ext4 {
label = "Application"
}
}
image @IMAGE@ {
hdimage {
partition-table-type = "gpt"
#gpt-location = 2M
}
partition bootloader {
in-partition-table = false
offset = 32K
image = "u-boot.img"
}
partition systemA {
in-partition-table = true
bootable = true
offset = 8M
partition-type-uuid = "L"
image = "systemA.ext4"
}
partition systemB {
in-partition-table = true
bootable = true
partition-type-uuid = "L"
image = "systemB.ext4"
}
partition log {
in-partition-table = true
partition-type-uuid = "L"
image = "log.ext4"
}
partition app {
in-partition-table = true
partition-type-uuid = "L"
image = "app.ext4"
}
}
8<------------------------------------
Now I want to create an update bundle for one of the system partitions with rauc.
What is the best way to make the update bundle here?
With a recipe and "inherit bundle"?
Or should I do it with genimage?
I did this with a recipe and used my rootfs recipe as base.
Here I get an update bundle out, that is about 3GB big. This much too large.
Greets Bernd
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [meta-rauc] How to generate update bundle: With genimage or with recipe?
2022-11-21 12:20 [meta-rauc] How to generate update bundle: With genimage or with recipe? BAUER Bernd
@ 2022-11-22 19:28 ` Enrico Jörns
0 siblings, 0 replies; 2+ messages in thread
From: Enrico Jörns @ 2022-11-22 19:28 UTC (permalink / raw)
To: BAUER Bernd, meta-rauc
Hi Bernd,
Am Montag, dem 21.11.2022 um 12:20 +0000 schrieb BAUER Bernd:
> Hi!
>
> I use genimage for image generation.
> This is an A/B system.
> The bootloader is u-boot and switching the root partitions already works.
>
> Looks something like this...
> 8<------------------------------------
>
> 8<------------------------------------
>
> Now I want to create an update bundle for one of the system partitions with rauc.
> What is the best way to make the update bundle here?
> With a recipe and "inherit bundle"?
this is the recommended way with meta-rauc, yes.
Since you only need the root file system image, this should be very little effort to create a bundle
recipe. Just have a look at
https://github.com/rauc/meta-rauc/blob/master/recipes-core/bundles/core-bundle-minimal.bb
> Or should I do it with genimage?
Generating bundles with genimage is possible, too (as e.g. PTXdist does this), but I do not see any
benefit here in this constellation.
> I did this with a recipe and used my rootfs recipe as base.
(Ok, so my above example should not even be needed ;) )
> Here I get an update bundle out, that is about 3GB big. This much too large.
How did you get a 3 GB image for you (< 512MiB?) rootfs? Thus the images in your deploy dir should
have the same size? Maybe you have configured a large free space (IMAGE_ROOTFS_SIZE,
IMAGE_ROOTFS_EXTRA_SPACE or IMAGE_OVERHEAD_FACTOR)?
Best regards
Enrico
> Greets Bernd
>
>
--
Pengutronix e.K. | Enrico Jörns |
Embedded Linux Consulting & Support | https://www.pengutronix.de/ |
Steuerwalder Str. 21 | Phone: +49-5121-206917-180 |
31137 Hildesheim, Germany | Fax: +49-5121-206917-9 |
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