Usually I don't reply to my own posts, but since several people on this
list indicated they had similar problems in private e-mails, I'm posting
a solution here.
Problem:
Starting with 2.4.3, bash won't accept any input when started by init in
single-user mode on serial console.
Fix:
It appears that 2.4.3 introduced some more strict term sanity checks in
char/serial.c. It broke many userland programs, busybox and sysvinit are
among them (as I found on kernel mailing list). Below is the patch for
sysvinit that fixes that problem:
-- sysvinit-2.78/src/init.c.CREAD Mon Jun 18 20:37:26 2001
+++ sysvinit-2.78/src/init.c Mon Jun 18 20:38:33 2001
@@ -684,7 +684,7 @@
(void) tcgetattr(fd, &tty);
tty.c_cflag &= CBAUD|CBAUDEX|CSIZE|CSTOPB|PARENB|PARODD;
- tty.c_cflag |= HUPCL|CLOCAL;
+ tty.c_cflag |= CREAD|HUPCL|CLOCAL;
tty.c_cc[VINTR] = 3; /* ctrl('c') */
tty.c_cc[VQUIT] = 28; /* ctrl('\\') */
Hope it helped somebody,
Haim Gelfenbeyn.
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