s5pv210 start Debian error prompt Bash:cannot set terminal process Group ( -1): Inappropriate IOCTL for device

1. The startup parameters are as follows:

Bootargs=root=/dev/nfs nfsroot=192.168.1.8:/opt/wheezy_fs ip=192.168.1.9:192.168.1.8:192.168.1.1:255.255.255.0:: Eth0:on Init=/bin/bash console=ttysac0,115200

The 1.1 error message is as follows:

Bash:cannot Set Terminal process Group ( -1): Inappropriate IOCTL for device
Bash:no job control in this shell

2. Modify the Startup parameters:

Bootargs=root=/dev/nfs nfsroot=192.168.1.8:/opt/wheezy_fs ip=192.168.1.9:192.168.1.8:192.168.1.1:255.255.255.0:: Eth0:on Init=/sbin/init console=ttysac0,115200

3. A new error has occurred:

Udevd[178]:unable to CTRL connection:function not implemented

Countermeasure: Patch The kernel, patch address is as follows:

https://github.com/genesi/linux-legacy/commit/a84fac75f38de592e530a2f9f982d7aafec6c288

s5pv210 start Debian error prompt Bash:cannot set terminal process Group ( -1): Inappropriate IOCTL for device