From 3d3f3488e0f24b839919c3e71ed00270194e5024 Mon Sep 17 00:00:00 2001
From: bin456789 <bin456789@gmail.com>
Date: Sun, 26 Apr 2026 21:59:07 +0800
Subject: [PATCH] =?UTF-8?q?core:=20=E4=B8=8D=E9=9C=80=E8=A6=81=E5=88=A4?=
 =?UTF-8?q?=E6=96=AD=20tty=20=E8=83=BD=E5=90=A6=E5=86=99=E5=85=A5?=
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而且安装环境下 tty 不一定齐全
---
 ttys.sh | 23 ++++++++++-------------
 1 file changed, 10 insertions(+), 13 deletions(-)

diff --git a/ttys.sh b/ttys.sh
index 630873f..122279d 100644
--- a/ttys.sh
+++ b/ttys.sh
@@ -7,27 +7,24 @@ prefix=$1
 # 注意 debian initrd 没有 xargs
 
 # 最后一个 tty 是主 tty，显示的信息最全
-is_first=true
 if [ "$(uname -m)" = "aarch64" ]; then
     ttys="ttyS0 ttyAMA0 tty0"
 else
     ttys="ttyS0 tty0"
 fi
 
+is_first=true
 for tty in $ttys; do
-    # hytron 有ttyS0 但无法写入
-    if stty -g -F "/dev/$tty" >/dev/null 2>&1; then
-        if $is_first; then
-            is_first=false
-        else
-            printf " "
-        fi
+    if $is_first; then
+        is_first=false
+    else
+        printf " "
+    fi
 
-        printf "%s" "$prefix$tty"
+    printf "%s" "$prefix$tty"
 
-        if [ "$prefix" = "console=" ] &&
-            { [ "$tty" = ttyS0 ] || [ "$tty" = ttyAMA0 ]; }; then
-            printf ",115200n8"
-        fi
+    if [ "$prefix" = "console=" ] &&
+        { [ "$tty" = ttyS0 ] || [ "$tty" = ttyAMA0 ]; }; then
+        printf ",115200n8"
     fi
 done