cttyhack/tty/initramfs problem (take a number)
vda.linux at googlemail.com
Sat Dec 5 00:56:59 UTC 2009
On Saturday 05 December 2009 00:28, Ersin Akinci wrote:
> I have a question about getting a shell started up, which will no
> doubt sound familiar and similar to the 100 other e-mails like this,
> yet after reading everything I'm still not sure what to do.
> Basically, I'm trying to bring up a single user shell on a minimal
> initramfs without having to bother with init, inittab, getty, or any
> of that. Running /bin/sh at the end of my init script results in no
> job control, as everyone knows. Instead, you're supposed to run the
> shell on a normal tty, but with Unix98 pty control there are no fixed
> tty device nodes in /dev. These are generated on the fly, but I don't
> know how.
Where exactly do you want shell prompt to appear?
> I think that getty does so (can someone please confirm this?),
No, it does not.
> again, I don't want to use getty or any login tools. Actually, I
> wouldn't mind using getty so long as I don't have to deal with any of
> the login/user stuff (i.e., if I could bypass login altogether). I
> tried using cttyhack /bin/sh, but that gives me "can't open
> '/dev/tty1': No such file or directory".
Aha. You are running it on Linux virtual ttys.
> What should I do?
Create /dev/tty1. Should look like this:
# ls -l /dev/tty1
crw-rw---- 1 root root 4, 1 Dec 4 20:26 /dev/tty1
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