Gentoo Archives: gentoo-user

From: James <wireless@×××××××××××.com>
To: gentoo-user@l.g.o
Subject: [gentoo-user] Re: Shutdown, Gentoo and the Arietta.G25
Date: Mon, 01 Dec 2014 18:09:17
Message-Id: loom.20141201T190142-156@post.gmane.org
In Reply to: [gentoo-user] Shutdown, Gentoo and the Arietta.G25 by meino.cramer@gmx.de
1 <meino.cramer <at> gmx.de> writes:
2
3
4 > But: Shutdown (as recommmended by acmesystems "shutdown -h -H now")
5 > REBOOTS the system instead of powering it down.
6
7 What about "halt"? man halt
8
9 > What is the difference here?
10 > Isn't it, that all shutdown applications only send some instructions
11 > to the kernel and the kernel is the main actor in bringing the system
12 > down?
13
14 > Meino
15
16
17 Meino, "it's an embedded system". That can mean unique hardware, via
18 the SoC, hidden codes via the in-situ firmware, or a myriad of things
19 hidden in the "recommended" kernel(s). Many embedded developers
20 forked off their own "embedded kernel" form linux via the 2.2 or 2.4
21 kernel series.
22
23 So, you have to "fully characterize" the system. Which is difficult to
24 impossible, as the vendor wants to retain control in most circumstances.
25 The good news is most "hardware vendors" are dumb, when it comes to codes;
26 so there is most always a work-around; hence "man halt" as for your
27 next leg of the journey?
28
29 hth,
30 James

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