> On Apr 10, 2017, at 6:43 AM, John Crispin <j...@phrozen.org> wrote:
> 
> 
> 
> On 10/04/17 14:25, Kenneth Johansson wrote:
>> I found that we touch the file /tmp/sysupgrade in a few places
>> 
>> ---
>> 
>> git grep "tmp/sysupgrade" | grep touch
>> package/base-files/files/sbin/sysupgrade:touch /tmp/sysupgrade
>> package/system/fstools/files/snapshot:    touch /tmp/sysupgrade
>> package/system/procd/files/nand.sh:            touch /tmp/sysupgrade
>> ---
>> 
>> But why ? did not find anything that uses that file.
>> 
>> 
>> 
>> _______________________________________________
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> 
> Hi
> procd [1] uses it to detect if an upgrade is in progress
>    John
> 
> [1] 
> https://git.lede-project.org/?p=project/procd.git;a=blob;f=initd/preinit.c;h=729978ea2f2af790653baaee5ae788f05a88a177;hb=HEAD#l62


Dumb question… why not just IPC procd telling it we’re entering a sysupgrade 
state?



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