running android: "sh: can't access tty; job control turned off"

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1

i distinctly remember that diagnostic as being busybox-related, and
it's what causes you to have no ability to break out of something like
"top" once you start it running. has anyone run into that and knows a
simple fix for it? thanks.

rday

2

Add androidboot.console=ttySn to your kernel commandline, where n is
the number of your console serial port.

-Howard

3

ok, i'll give that a shot in a bit. but where should i have
expected to read that?

rday

4

excellent, that worked, so let me ask another dumb question.
currently, my bootargs line already contains "console=ttyS2,115200n8".
am i supposed to add that extra boot-time parm *instead of" the
console= parm, or *in addition to*?

  i added it at the end and it appeared to work. just wondering if
that's the ideal way to do it. thanks.

rday

p.s. i didn't add the speed and parity characteristics to the
androidboot parm, just the tty port.

5

Add androidboot.console=ttySn to your kernel commandline, where n is
the number of your console serial port.

ok, i'll give that a shot in a bit. but where should i have
expected to read that?

Good question. I guess they want us to read all the source code to
find this sort of thing, but I found it on one of the android mailing
lists.

I'd suggest subscribing to android-platform and android-porting, or
searching those lists.

-Howard

6

Add androidboot.console=ttySn to your kernel commandline, where n is
the number of your console serial port.

excellent, that worked, so let me ask another dumb question.
currently, my bootargs line already contains "console=ttyS2,115200n8".
am i supposed to add that extra boot-time parm *instead of" the
console= parm, or *in addition to*?

i added it at the end and it appeared to work. just wondering if
that's the ideal way to do it. thanks.

I don't know, but I'd guess you need both. The regular console= is
needed by the kernel, and the androidboot.console= probably sets some
property used by the usermode components. It might be possible to use
setprop in init.rc to accomplish the same thing, but I'd have to check
the sources.

-Howard