Every so often, I start wondering why the plumber isn't simpler. Here's my
simpler design: There is no plumber. Instead, `plumb` reads the plumbing
files and acts accordingly. To receive input from the plumber, programs post a
pipe in /srv. No need for a special-purpose filesystem.
It
Has anyone made one? I'm trying to put one together but the Plan 9 disk tools
are... well they are quite different to what I'm used to. I managed to build
the kernel and the userspace (with CONF=rpi2, which is afaik the correct one
for rpi3 too?) and am trying to mirror the partitioning of the
On Sat, Jan 5, 2019, at 2:12 PM, erik quanstrom wrote:
> you need plumber so cpu can be transparent to plumbing.
Good point. I think it could be done with multi-/srv, but I see one problem:
you wouldn't want cpu to export all of /srv. (Right?) I think it could be
dealt with by mounting a
richard miller did a very fine job with the image.
9front used to have a image to download based on it for the raspi1,
but it is quite old and nobody updated it.
in the last release, we updated the kernel from richards
code and made the /sys/lib/dist/mkfile able to produce a
bootable sdcard
you need plumber so cpu can be transparent to plumbing.- erik
I have been intending to try out the new raspberry pi updates too for
9front, but haven't had the chance yet.
A couple of years ago I was building the sd-card images for my raspberry
pis by using qemu to bring up an x86 install of 9front and doing a
cross-compile within to build the new disk
What are you running this on, is this byron's rc on unix?
I just tried the secript I posted, cut and pasted into a
tiny shell scropt called testread, and it just worked™
maybe some other part of your script has a problem?
My script below
-snip-snip-
#!/bin/rc
cat $1 |
Thank you Anthony!
I had thought that IFS in Plan 9 was not the way to go after reading from ‘Rc -
The Plan 9 Shell’
“IFS is no longer used, except in the one case where it was indispensable:
converting command output into argument lists during command
substitution.”
The document
I apologize if this is not the correct forum for this question. However, since
I am trying to write a script in Plan 9’s rc shell, this seemed to be the best
place to go - as most scripting resources are based on bash, and I could not
find the answer in the rc references I could find. - and I’m
Mack Wallace once said:
> My question: Is there a way to take the string output of a command that
> contains spaces and make it a single element of an array in rc script?
>
> [...]
>
> However, if I am receiving output from sed that contains spaces from
> the following script line
>
>
> build bootable hjfs sdcard image
>
> =
>
> cd /sys/lib/dist
> mk /tmp/mysdcard.pi.img
This last step fails with:
mk: don’t know how to make '/n/src9/sys/lib/sysconf g/proto/cmpdistproto’ in
directory /sys/lib/dist
Thank you Steve.
But unfortunately...
That gives me “rc (testread): variable name not singleton!”
Trying the read with the -m option gets me the following errors repeated over
and over until I escape out.
“awk i/o error occurred on /dev/stdin
source line number 1
awk: i/o error occurred while
oh yeah. sorry.
just do this before:
bind / /n/src9
i missed this because that step is implied by sys/lib/rootbind
that i use when building iso from a separate clean repository.
--
cinap
Thanks! I managed to boot it but ran into some problems with my USB keyboard,
the screen is basically flooded with "read returned 0" errors, but the mouse
works without problems, even if I plug it in late.
I'll take a proper screenshot of the log when I have more time.
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Another, probably more stupid question - How does one read a text file line by
line in an rc script.
In bash this works:
#!/bin/bash
while read line
do
echo $line
done < $1
I’ve tried:
#!/bin/rc
while (line=`{read $1})
{
echo $line
}
Which produces the first line of the
try
cat $1 | while(line=`{read}){
echo $line
}
no doubt you cam do without the cat but i am unsure off hand where to put the
redirect in and i am not on plan9 just now.
-Steve
> On 5 Jan 2019, at 10:34 pm, Mack Wallace wrote:
>
> Another, probably more stupid question - How does one read a
Thanks...
I'm running Bell Labs Plan 9 in Virtualbox. (I’m not sure how to get the
version from the os or from rc)
I copied and pasted the snip directly into a script with only that in it - same
error as before:“rc (testread): variable name not singleton!”
As for the second part - I will
Mack Wallace once said:
> Another, probably more stupid question - How does one read a text file
> line by line in an rc script.
You should really read the rc(1) man page. It will answer your
questions.
Here the functions foo and bar are equivalent:
fn foo {
<$1 while(l
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