reinstall/ttys.sh
2024-08-19 01:18:47 +08:00

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#!/bin/sh
prefix=$1
# 不要在 windows 上使用,因为不准确
# 在原系统上使用,也可能不准确?例如安装了 cloud 内核的甲骨文?
# 注意 debian initrd 没有 xargs
# 最后一个 tty 是主 tty显示的信息最全
is_first=true
if [ "$(uname -m)" = "aarch64" ]; then
ttys="ttyS0 ttyAMA0 tty0"
else
ttys="ttyS0 tty0"
fi
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 $is_first; then
is_first=false
else
printf " "
fi
printf "%s" "$prefix$tty"
if [ "$prefix" = "console=" ] &&
{ [ "$tty" = ttyS0 ] || [ "$tty" = ttyAMA0 ]; }; then
printf ",115200n8"
fi
fi
done