Linux red hat 7 serial console settings – HP ProLiant xw460c Blade Workstation User Manual
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HP BIOS Serial Console/EMS Support Settings and Configuration
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Microsoft® enables EMS support in the OS, but EMS support also requires 
ROM support. EMS support, when enabled, assumes the serial port for 
redirection and may cause interference with other devices attached to the serial 
port. To avoid interference, EMS is disabled in the system ROM by default on 
ML and DL servers. To enable this feature, Enable Local or Enable Remote must 
be selected under the BIOS Serial Console/EMS Support menu in RBSU before 
installing Windows® Server 2003. If you install Windows® Server 2003 with 
EMS disabled, and later decide to enable it, perform the following steps to update 
the boot.ini file: 
1. Enable EMS in RBSU.
2. Run
bootcfg/ems on/id 1
.
3. Reboot.
Linux Red Hat 7 Serial Console Settings
If you are using an HP ProLiant BL e-Class server, each server blade maintains a 
connection to COM 1, so they are primarily used remotely through the Integrated 
Administrator. To enable BIOS Serial Console for Linux Red Hat 7 OS: 
1. Remove the line:
message=/boot/message from /etc/lilo.conf
2. Add the following line to the Linux image specification in /ect/lilo.conf:
Append="console=tty0 console=ttyS0, 115200"
3. Run /sbin/lilo to make the changes take effect.
4. Add the following line to the end of /etc/inittab to enable agetty on COM1
(ttyS0):
7:12345:respawn:/sbin/agetty 115200 ttyS0 vt100
5. Set
SAFE=yes
in the file /etc/sysconfig/kudzu, so it does not probe the
serial port during initialization.
6. Add the following line to /etc/securetty to allow root to log in on the ttyS0:
ttyS0
7. Reboot the server blade with these new settings.