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Ensure that a serial port is set up before used.

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okuji committed 2001-10-13 12:02:30 +00:00
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@@ -1,3 +1,17 @@
2001-10-13 Yoshinori K. Okuji <okuji@gnu.org>
Based on a patch from Jeremy Katz <katzj@redhat.com>:
* docs/grub.texi (Stage2 errors): Added documentation on the
error number 33 (Serial device not configured).
* grub/asmstub.c (serial_exists): New function.
* stage2/serial.c (serial_exists): Likewise.
* stage2/serial.h (serial_exists): New prototype.
* stage2/shared.h (grub_error_t): ERR_NEED_SERIAL is added.
* stage2/builtins.c (terminal_func) [SUPPORT_SERIAL]: If a
serial device is not configured yet, restore the terminal and
set ERRNUM to ERR_NEED_SERIAL.
* stage2/common.c (err_list): Added an item for ERR_NEED_SERIAL.
2001-10-13 Yoshinori K. Okuji <okuji@gnu.org>
From Jason Thomas <jason@topic.com.au>: