Best way to exec script on boot - Page 2

Cyrill · 09-11-2022, 04:14 PM

@NiLuJe

/etc/upstart does not exist on my system. I'm on a kindle K4.

Can I safely create `/etc/upstart` if it does not exist, or are there alternatives? I want to make sure my python script restarts after a reboot.

NiLuJe · 09-12-2022, 04:59 PM

No, the K4 uses a completely different init system, so that's not a drop-in replacement situation

.

NiLuJe · 09-12-2022, 05:01 PM

I'm sure there are many many things with code to handle both init systems, but my mind is blank right now, the only thing that comes to mind is MRPI itself, although that's not exactly an "at boot" situation.

So, better question: What are you even trying to do in the first place?

(On the upside, screwing up with sysvinit on a K4 won't be as bad as screwing up with upstart on FW 5.x, as that can soft-brick a device veeeery easily).

NiLuJe · 09-12-2022, 05:03 PM

Quote:

Originally Posted by NiLuJe

So, better question: What are you even trying to do in the first place?

Okay, reading helps. I should just go to bed.

Assuming it's not boot-critical (and it *really* shouldn't be), you'll want to start as late a possible, that means an S99 prefix in the right runlevel (I... can't remember what the various runlevels do anymore, just unpack any of my hacks, they set up stuff in the three of 'em. I want to say that main is 5? or 6? but, really just double-check).

Wolf-HRB · 09-12-2022, 05:41 PM

could we use this to force downgrade or jailbreak?

NiLuJe · 09-12-2022, 06:21 PM

No, because catch-22?

Wolf-HRB · 09-13-2022, 04:47 AM

may be we could try it, because the core for jailbreak is to make ;log xxxxx command to work, Thus, could we use this method to add that support back to the os?

Cyrill · 09-13-2022, 05:05 AM

Thanks so much!

I will dive into the depths of sys-v init configurations. Seems you have all of the work already in your hacks.

NiLuJe · 09-13-2022, 11:08 AM

@Wolf-HRB:

Quote:

Originally Posted by NiLuJe

No, because catch-22?

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09-11-2022, 04:14 PM	#16
Cyrill Junior Member Posts: 7 Karma: 10 Join Date: Sep 2022 Location: Switzerland Device: Kindle K4 (black)	@NiLuJe /etc/upstart does not exist on my system. I'm on a kindle K4. Can I safely create `/etc/upstart` if it does not exist, or are there alternatives? I want to make sure my python script restarts after a reboot.

09-12-2022, 04:59 PM	#17
NiLuJe BLAM! Posts: 13,478 Karma: 26012494 Join Date: Jun 2010 Location: Paris, France Device: Kindle 2i, 3g, 4, 5w, PW, PW2, PW5; Kobo H2O, Forma, Elipsa, Sage, C2E	No, the K4 uses a completely different init system, so that's not a drop-in replacement situation .

09-12-2022, 05:01 PM	#18
NiLuJe BLAM! Posts: 13,478 Karma: 26012494 Join Date: Jun 2010 Location: Paris, France Device: Kindle 2i, 3g, 4, 5w, PW, PW2, PW5; Kobo H2O, Forma, Elipsa, Sage, C2E	I'm sure there are many many things with code to handle both init systems, but my mind is blank right now, the only thing that comes to mind is MRPI itself, although that's not exactly an "at boot" situation. So, better question: What are you even trying to do in the first place? (On the upside, screwing up with sysvinit on a K4 won't be as bad as screwing up with upstart on FW 5.x, as that can soft-brick a device veeeery easily).

09-12-2022, 05:41 PM	#20
Wolf-HRB Enthusiast Posts: 31 Karma: 18 Join Date: Feb 2022 Device: PW3, PW4 and PW5 Signature Edition	could we use this to force downgrade or jailbreak?

09-12-2022, 06:21 PM	#21
NiLuJe BLAM! Posts: 13,478 Karma: 26012494 Join Date: Jun 2010 Location: Paris, France Device: Kindle 2i, 3g, 4, 5w, PW, PW2, PW5; Kobo H2O, Forma, Elipsa, Sage, C2E	No, because catch-22?

09-13-2022, 04:47 AM	#22
Wolf-HRB Enthusiast Posts: 31 Karma: 18 Join Date: Feb 2022 Device: PW3, PW4 and PW5 Signature Edition	may be we could try it, because the core for jailbreak is to make ;log xxxxx command to work, Thus, could we use this method to add that support back to the os?

09-13-2022, 05:05 AM	#23
Cyrill Junior Member Posts: 7 Karma: 10 Join Date: Sep 2022 Location: Switzerland Device: Kindle K4 (black)	Thanks so much! I will dive into the depths of sys-v init configurations. Seems you have all of the work already in your hacks.

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