[LEDE-DEV] /tmp/sysupgrade

[Kenneth Johansson]

On 2017-04-10 14:43, John Crispin 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

Aha. there is was.  But now I got even mode questions. how do procd 
enter preinit state again and is it just killed later since it enters an 
infinite wait.