ubuntu18.04上电启动时间延长

rk3288+ubuntu18.04接usb转串口时，上电启动时间延长，查了启动信息报以下错误，求解答。

[2022-04-20 14:36:16.129]# RECV ASCII>
[[0m[0;31m*     [0m] A start job is running for dev-ttyUSB1.device (7s / 1min 30s)

[2022-04-20 14:36:16.704]# RECV ASCII>

[K[[0;1;31m*[0m[0;31m*    [0m] A start job is running for dev-ttyUSB1.device (7s / 1min 30s)

[2022-04-20 14:36:17.304]# RECV ASCII>

[K[[0;31m*[0;1;31m*[0m[0;31m*   [0m] A start job is running for dev-ttyUSB1.device (8s / 1min 30s)

ln -s /lib/systemd/system/getty@.service /etc/systemd/system/getty.target.wants/getty@ttyUSB1.service

试试，具体文件名根据实际情况修改

dmesg看下关掉这个服务解决

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