From: Jacob Moody <moody@mail.posixcafe.org>
To: 9front@9front.org
Subject: [9front] [PATCH] specify argument for new kernel in reboot(1)
Date: Sun, 5 Jun 2022 15:21:42 -0600 [thread overview]
Message-ID: <9de319f0-7881-1e38-3c47-341ef236038c@posixcafe.org> (raw)
This allows kernel configuration to be modified through
additional arguments to reboot.
; reboot /amd64/9pc64 'nobootprompt=tcp!'
---
diff df92301d8fc8310fbfdf3de91b97a156ca0504d4 uncommitted
--- a//rc/bin/reboot
+++ b//rc/bin/reboot
@@ -1,2 +1,11 @@
#!/bin/rc
-echo reboot $* > /dev/reboot
+rfork e
+
+kern=$1
+shift
+for(i in $*){
+ kv=`'=' {echo -n $i}
+ echo $kv(2) >> '#ec/'$kv(1)
+}
+
+echo reboot $kern > /dev/reboot
--- a//sys/man/8/fshalt
+++ b//sys/man/8/fshalt
@@ -11,6 +11,9 @@
[
.I kernelpath
]
+[
+.IR key=value ...
+]
.br
.B scram
.SH DESCRIPTION
@@ -41,6 +44,16 @@
is specified then the machine will load and start that
kernel directly instead of returning to the system rom. (see
.IR cons (3)).
+The new kernel inherits the existing configuration stored
+in
+.B #ec
+(see
+.IR env (3)).
+Additional arguments in the form
+.I key=value
+will be overwrite keys in
+.B #ec
+before rebooting.
.PP
.I Scram
shuts down the machine it is invoked on.
reply other threads:[~2022-06-05 21:23 UTC|newest]
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