Re: [RAUC] Regarding usage of hook

[Enrico Joerns <ejo@pengutronix.de>]

Hi Abhishek,

On 9/26/18 1:59 PM, Abhishek Kumar Rai wrote:
> 
>       Abhishek Kumar Rai <abhishekr@eximiusdesign.com <mailto:abhishekr@eximiusdesign.com>>
> 
> 5:12 PM (16 minutes ago)
> to rauc-request
> 
> Hi team ,
> 
> I am new to rauc .Please solve my query
> 
> I have written system.conf file
> 
> {{{
> abhishek@abhishek-Latitude-5490:~$ cat system.conf
> [system]
> compatible=eximius
> bootloader=uboot
> mountprefix=/mnt/rauc
> statusfile=/factory/rauc.status
> 
> [keyring]
> path=cert.pem
> 
> [...]
>
> [slot.appdata.0]
> #device=/dev/mmcblk1p8
> device=/dev/disk/by-path/platform-219c000.usdhc-part8
> type=ext4
> parent=rootfs.0
> 
> [slot.appdata.1]
> #device=/dev/mmcblk1p9
> device=/dev/disk/by-path/platform-219c000.usdhc-part9
> type=ext4
> parent=rootfs.1
> }}}
> 
> how to use hook in order to preserve the data of appdata0, while installing bundle .
> In which file i have to give hook option?

Hooks are part of the bundle, thus you have to define them in the bundle's manifest, e.g.:

[hooks]
filename=yourhookscript.sh

[image.appdata]
image=foo.img
hooks=install

Note that your bundle generation has to place yourhookscript.sh into the bundle in order to make this work.


Potentially, you could also do this in a post-install hook for your appfs in case you know where your appdata copies are located.


Best regards,

Enrico

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Not sure if I will get in prison when replying on this mail on a world-accessible mailing list... ;)


-- 
Pengutronix e.K.                           | Enrico Jörns                |
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