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| 17:12.23 | dpy | hi guys |
| 17:12.48 | dpy | does anyone here know how to get a tty on the serial port ? |
| 17:12.53 | CosmicPenguin | ttyS0? |
| 17:12.57 | dpy | yeah |
| 17:13.07 | dpy | I use pxelinux to boot using pxe |
| 17:13.19 | dpy | which starts busybox' init |
| 17:13.36 | dpy | which uses: http://rafb.net/paste/results/yzSZ7039.html |
| 17:13.43 | dpy | as /etc/inittab |
| 17:14.06 | dpy | I see no errors, but there is also not coming a shell prompt or something |
| 17:14.19 | dpy | APPEND load_ramdisk=1 initrd=wrapboot-initrd.gz rw ramdisk_size=32768 root=/dev/ram0 console=ttyS0,38400n8 |
| 17:14.31 | dpy | I use this in my pxelinux config file |
| 17:14.54 | dpy | note the console=ttyS0,38400n8 which are definately needed to get any output on the serial port |
| 17:15.20 | dpy | I can do init=/bin/ash |
| 17:15.31 | dpy | but then I will not get a controlling tty (no job control) |
| 17:15.39 | CosmicPenguin | yeah, you wouldn't |
| 17:16.03 | dpy | so, basically, I need a controlling tty on /dev/ttyS0 if possible |
| 17:16.12 | CosmicPenguin | so run a getty on it |
| 17:16.24 | dpy | I also tried: tty1::respawn:/sbin/getty /dev/ttyS0 |
| 17:16.26 | dpy | to no avail |
| 17:16.50 | CosmicPenguin | you can't do that and init=/bin/ash at the same time |
| 17:17.03 | dpy | no init=/bin/ash ofcourse:) |
| 17:17.21 | CosmicPenguin | and lose the /dev in the getty line |
| 17:17.30 | CosmicPenguin | its just getty ttyS0 <baud> vt100 |
| 17:17.38 | dpy | I don't have any i/o at the serial port currently, after init does his thing with the ttys |
| 17:17.51 | dpy | k |
| 17:17.53 | dpy | one sec |
| 17:18.57 | dpy | nothing |
| 17:18.59 | dpy | :( |
| 17:19.20 | dpy | tty1::respawn:/sbin/getty ttyS0 38400 vt100 |
| 17:19.23 | dpy | this is the line now |
| 17:20.11 | CosmicPenguin | is this busybox init? |
| 17:20.16 | dpy | yep |
| 17:20.34 | CosmicPenguin | busybox init is slightly different from sysvinit |
| 17:20.42 | dpy | ls /mnt/tmp1/sbin/init -l |
| 17:20.42 | dpy | lrwxrwxrwx 1 root root 12 feb 12 2006 /mnt/tmp1/sbin/init -> /bin/busybox |
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| 17:21.07 | dpy | CosmicPenguin: so... where's the catch ? |
| 17:22.12 | CosmicPenguin | are you sure ttyS0 exists? |
| 17:22.32 | dpy | grrrrrr |
| 17:22.46 | CosmicPenguin | s/ttyS0/dev/ttyS0/ |
| 17:22.49 | CosmicPenguin | or something |
| 17:23.38 | dpy | yes yes |
| 17:23.44 | dpy | root@dwarfhouse in /pub/tmp/WRAP-aankloot >mknod /mnt/tmp1/dev/ttyS0 c 4 64 |
| 17:24.29 | dpy | Freeing unused kernel memory: 124k freed |
| 17:24.29 | dpy | (none) login: |
| 17:24.32 | dpy | woohoo |
| 17:25.38 | dpy | one small question.. is it also possible to not require a login at all on this tty ? |
| 17:26.10 | dpy | or maybe it's a stupid question and it's what getty is all about... hmm |
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| 17:28.28 | CosmicPenguin | yeah - you could just do a /bin/sh instead |
| 17:29.31 | dpy | uh, then I would get no job control on ash |
| 17:31.22 | CosmicPenguin | I don't think thats right - getty properly setups up the controlling terminal |
| 17:32.05 | dpy | yes, so how do I combine both |
| 17:32.44 | CosmicPenguin | did I say getty? |
| 17:32.46 | CosmicPenguin | I meant init |
| 17:34.52 | dpy | hehe |
| 17:35.14 | dpy | I see your confusion, but the problem is, getty can connect to the serial port... /bin/ash can't |
| 17:35.54 | dpy | btw, after logging in, I still get: -ash: can't access tty; job control turned off |
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