iLO4 : access to an iLO VSP(virtual serial port) over SSH

Reference

http://blog.chrysocome.net/2013/05/proliant-virtual-serial-port.html

http://balazsdeak.blogspot.jp/2015/02/hp-dl380-serial-console-with-red-hat.html

OS : CentOS 6.7

iLO 4

• BIOS settings ( default settings )

Set ‘BIOS Serial Console Port’ to COM2
Set ‘BIOS Serial Console Baud Rate’ to 115200

• OS

When ttyS1(ttyS1 is for COM2) is not configured on your OS, you will see nothing when connecting to VSP as below.

Access to an iLO over SSH and enter VSP.

$ ssh 192.168.10.10 -l user </>hpiLO-> VSP Virtual Serial Port Active: COM2 Starting virtual serial port. Press 'ESC (' to return to the CLI Session. *** blank *** </>hpiLO->

Configure ttyS1.

Create a file named “ttyS1.conf” under /etc/init directory.

$ sudo vi /etc/init/ttyS1.conf $ sudo cat /etc/init/ttyS1.conf stop on runlevel [S016] start on runlevel [235] respawn instance /dev/ttyS1 exec /sbin/agetty 115200 ttyS1 vt100

Add ttyS1 in securetty file.

$ sudo tail -1 /etc/securetty ttyS1

enable ttyS1.

$ sudo initctl start ttyS1 ttyS1 (/dev/ttyS1) start/running, process 8406

Access to the VSP over SSH.

</>hpiLO-> VSP Virtual Serial Port Active: COM2 Starting virtual serial port. Press 'ESC (' to return to the CLI Session. localhost.localdomain login: CentOS release 6.7 (Final) Kernel 2.6.32-573.7.1.el6.x86_64 on an x86_64

In CentOS6, init daemon uses upstart, not Sys V init, so ‘telinit q’ does not work.

You need to create a file under /etc/init directory instead of editing /etc/inittab file.

edit /etc/grub.conf so that you can see boot messages.

timeout=5 # unit=0 for COM1, unit=1 for COM2 serial --unit=1 --speed=115200 --word=8 --parity=no --stop=1 terminal --timeout=5 serial console #splashimage=(hd0,1)/grub/splash.xpm.gz hiddenmenu title CentOS (2.6.32-573.7.1.el6.x86_64)        root (hd0,1)        kernel /boot/vmlinuz-2.6.32-573.7.1.el6.x86_64 ro root=UUID=aaa rd_NO_LUKS rd_NO_MD crashkernel=auto  rhgb quiet console=tty0 consle=ttyS1,115200n8

Linux KVM : connect to a Linux Mint12 VM via virsh console

small tips

how to use virsh console.

KVM host : Ubuntu 11.10

VM : Linux Mint 12

[ on the KVM host (Ubuntu 11.10 ) ]

confirm the VM has serial ports.

# virsh dumpxml Mint12-64-1 | less    <serial type='pty'>      <source path='/dev/pts/5'/>      <target port='0'/>      <alias name='serial0'/>    </serial>    <console type='pty' tty='/dev/pts/5'>      <source path='/dev/pts/5'/>      <target type='serial' port='0'/>      <alias name='serial0'/>

[ on the VM ( Linux Mint 12 ) ]

make /etc/init/ttyS0.conf file

# cat /etc/init/ttyS0.conf start on stopped rc RUNLEVEL=[2345] stop on runlevel [!2345] respawn exec /sbin/getty -L 115200 ttyS0 vt 102

“start ttyS0”

# start ttyS0 ttyS0 start/running, process 703

edit /boot/grub/grub.cfg

By default , grub.cfg is read-only permission.

add write permission.

# chmod u+w /boot/grub/grub.cfg

edit grub.cfg ( add red lines )

menuentry 'Linux Mint 12 64-bit, 3.0.0-16-generic (/dev/vda1)' --class linuxmint --class gnu-linux --class gnu --class os {        recordfail        set gfxpayload=$linux_gfx_mode        insmod gzio        insmod part_msdos        insmod ext2        set root='(hd0,msdos1)'        search --no-floppy --fs-uuid --set=root e1679c23-ba3c-4d9f-9d02-b2a3d69b 5af4        linux   /boot/vmlinuz-3.0.0-16-generic root=UUID=e1679c23-ba3c-4d9f-9d02 -b2a3d69b5af4 ro   quiet splash vt.handoff=7 console=ttyS0,115200n8        initrd  /boot/initrd.img-3.0.0-16-generic

reboot the VM.

connect to the VM via virsh console

virsh # console Mint12-64-1 Connected to domain Mint12-64-1 エスケープ文字は  ^] です