Hp Ilo 2 Remote Serial Console
I'm trying to setup a serial console connection to an ESXi 5.1 host. The server is a HP DL380 G6. Through the Remote Serial Console within the ILO2, I'm able to see the ESXi 5.1 yellow and black console screen. I'm able to hit F2, login, and interact with the various configuration menus. What I can't figure out, is how to hit Alt-F1 to get an ESXi shell.
Hp Ilo 2 Remote Serial Console
I have a HP ProLiant Microserver Gen9. It has HP ILO version 4, but the Java based Remote Console doesn't work reliably and I can't use it after the POST screen in the free version of ILO (asks me to buy an ILO Advanced license). So I want to use the serial console instead to get a login on the server.
What do I have to do on an Ubuntu system to get all phases (POST, BIOS configuration, GRUB's output, the eventual login prompt) of the boot process in a serial console via the server's ILO network port? How do I connect to it?
After you've found the IP (say 184.108.40.206), you can connect to ILO's GUI interface via But that's not what we're looking for, we want the serial console. So instead, use ILO's SSH interface: ssh Administrator@220.127.116.11. The default password is on the little paper tag that comes with the Microserver.
In RHEL7 "error: terminal `serial' isn't found" is due to the fact that Anaconda does not place a "serial" device driver in the RAM image. It is possible to rebuild the RAM disk with the missing driver but Grub seems to function sufficiently without it.
This includes features such as power on/off and remote console access accessible through a browser. The first works fine while the latter (remote console) relies on technologies that are ancient in the digital wold; Either IE7 + ActiveX, or any browser capable of running Java Applets.
The ports needed are 443 to login to the iLO plus 17990 and 80. At least it did the same nothing i.e. did not work when port 80 was not forwarded and then .NET console worked with port 80 forwarded. BTW, to work this out I just ran a netstat from a LAN client that was able to connect the remote console.
I am running ILO Firmware 2.22 which appears to be the latest release. When I open the integrated remote console under IE 11, it says (Internet Explorer is required). There is an option to run the console under JVM but all the links to JVM do not work. I installed a copy of JVM on a W7 pc but when I open the window, it just stops responding.
And while I could have just gone to my closet and pulled out this old laptop, just to access the console of one of our old HP servers, just this one time, I really wanted to have a modern solution. So, I went down this rabbit hole, burned a few hours, but ultimately was successful and I am proud to share what I discovered.
It works fine in Firefox though; I can login and use most of the tools, except for the Java-based remote console. As of September, 2018, Firefox dropped support for the technology to run Java applets.
Jephe Wu - Environment: HP Proliant server A with one com port which is com1, CentOS 5Objective: enable login through com1 using null modem cable from another machine B which can be Windows or Linux. Also, we will try to login from ILO vsp to display kernel bootup message, BIOS and GRUBSteps: Part I - physically connect to com1 interface at the back side of the HP Proliant server and login to Linux server google_ad_client = "ca-pub-2326791955539700"; google_ad_slot = "7325280754"; google_ad_width = 336; google_ad_height = 280;1. connect null modem cable between A and B at com1 port (ttyS0), if it's com2, it's ttyS12. on Linux server A, vi /etc/inittab and append the followin line:s0:2345:respawn:/sbin/agetty 115200 ttyS0 vt100 3. If machine B is Linux, use minicom to configure the serial port speed as 115200, then connect.If your laptop doesn't have serial port, you can use 'usb to RS232 converter' cable (one side is usb interface, anther end of the cable is the male DB9 interface.use 'lsusb' and dmesg to confirm Linux is using /dev/ttyUSB0 after inserting cable to Linux pc.Configure minicom to use /dev/ttyUSB0 as com port and connect. If udev is running (such as ubuntu), then you don't have to create /dev/ttyUSB0, it will be automatic.[root@jephe dev]# ./MAKEDEV ttyUSB0[oracle@jephe dev]$ ls -l ttyUSB0crw-rw---- 1 root uucp 188, 0 Nov 6 05:08 ttyUSB0[root@jephe dev]# ./MAKEDEV ttyUSB1[root@jephe dev]# ls -l ttyUSB1crw-rw---- 1 root uucp 188, 1 Nov 6 05:08 ttyUSB14. If machine B is Windows, use putty to directly connect to serial port, set speed as 115200, then login5. you can also use kermit to connect to serial port as follows:kermit set line /dev/ttyS0 set carrier-watch off connectFAQ:a. how to change speed? - best practise.vi /etc/inittab , for example, change 115200 to 9600, then comment out the line first, run 'init q' to re-read file, after that, uncomment it, issue 'init q' again.b. how to enable root login through serail ports?Just add both ttyS0 and ttyS1 or both into /etc/securetty.Part II: How to use HP virtual serial port(VSP) to login Linux serverFor HP Proliant DL serial servers, you can use VSP (Virtual Serial Port) with ILO2, you can basically ssh into ILO IP address with Administrator login. Add the following lines to /etc/inittabs1:2345:respawn:/sbin/agetty 115200 ttyS1 vt100then run 'init q' to enable it, after that, you can use vsp command to connect to this serial port login.use ssh connect to ILO ip address:(if there's firewall in between, enable port 22)for ILO version 1, just run 'REMCONS'.for ILO2 , type 'vsp' to connect to ttyS0 or ttyS1 to get console screen.According to =92 ,A new feature crept in unannounced in the recent iLO 2 v1.77 firmware update from HP: You can now kill / terminate Virtual Serial Port (VSP) sessions that are open or hung. This is a very useful when you need to connect to the VSP but you (or someone else) is already connected from another location.The new command to terminate VSP sessions is:stop /system1/oemhp_vsp1For reference, here are the two methods of starting VSP sessions in the iLO CLI: vsporstart /system1/oemhp_vsp1Before now, the only way to clear a hung VSP session was to reboot the iLO (a very intrusive action that takes 30-60 seconds), so this is a major improvement in usability of Virtual Serial Port sessions.When ILO2 hangs, what you can do it :a. make sure you are using the latest ILO2 firmware, if not , download one for your OS,then do online upgrade.b. ssh into ILO, then run stop /system1/oemhp_vsp1c. vi /etc/inittab, to comment out your virtual serial port line, then run init qd. vi /etc/inittab again to uncomment that line , then run init qe. try again 'vsp' command to access virtual serial port from ILO2 promptFAQ:a. if you used ttyS0 and init q already, after that, you realize you should use ttyS1 for HP VSP serial port 2 which is 0x2F8.You have to comment that line first, then int q, after that, change ttyS0 to ttyS1, otherwise, the ttyS0 is still listening , use ps ax to find out, please.Part III - kernel console and GRUB serial console output1. Enabling kernel console output so that you can view Linux server booting up messages on virtual console ttyS1 through vsp, then you should do this: (comment out splashimage and add two console options at kernel line for /etc/grub.conf)default=0timeout=5#splashimage=(hd0,0)/grub/splash.xpm.gzhiddenmenutitle CentOS (2.6.18-164.el5) root (hd0,0) kernel /vmlinuz-2.6.18-164.el5 ro root=/dev/VolGroup01/LogVol00 rhgb quiet console=tty0 console=ttyS1,115200 initrd /initrd-2.6.18-164.el5.imgNote:This will send the console output to the serial port ttyS1 at a baud rate of 115200 as well as send the output to the regular console or "screen" tty0.Remember: you have to put console=tty0 first then console=ttyS1 so that HP VSP can display those OK messages. Otherwise, those [OK] messages won't display on VSP.2. Configure and use GRUB over Serial Console (redhat knowledge base)The system's BIOS, bootloader (GRUB), Xen, Linux, and login access must each be individually configured for serial console access. It is not strictly necessary to have each component fully functional, but it can be quite useful.For general information on serial console configuration under Linux, refer to the Remote Serial Console HOWTO at The Linux Documentation Project.Enabling GRUB serial console output neither enables nor disables Xen or Linux serial capabilities, but may make remote management of the system more convenient by displaying GRUB prompts, menus, and actions over serial port and allowing remote GRUB management.Add the following two lines to the GRUB configuration file /boot/grub/grub.conf will enable GRUB serial output.serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1 terminal --timeout=10 serial consoleNote that when both the serial port and the local monitor and keyboard are enabled, the text "Press any key to continue" will appear at both. Pressing a key on one device will cause GRUB to display to that device. The other device will see no output. If no key is pressed before the timeout period expires, the system will boot to the default GRUB boot entry.FAQ.a. How to capture Linux installation screenYou can add the following to linux prompt when you boot from Redhat/CentOS installation CD:linux kernel console=ttyS0, 115200 console=tty0then you minicom or putty from another machine to connect to serial port at the same baud rate, you should be able to see and capture the screens.Part IV: BIOS over serial redirection (vsp, hyper terminal or minicom)under 'system option', set embedded serial port as com1 and virtual serial port as com2under 'BIOS serial console & EMS', set BIOS serial console port as Auto(auto choose vsp or physical com1), and BIOS serial console band rate as 115200You can user a null modem calbe to physically connect a PC/server to this HP Proliant server, and use Windows hyper terminal or minicom from Windows or Linux to connect to com1 to get BIOS over serial redirection or use gtkterm, cutecom etc GUI terminal program oruse HP Virtual Serial Port (VSP) after ssh into ILO2 from Xshell or putty, then type in 'vsp'.It will display the following message at the end of the bootup screen:For access via BIOS Serial Consoleller Press "ESC+1" to continue Press "ESC+9" for ROM-Based Setup Utility Press "ESC+0" for System Maintenance Menu Press "ESC+@" for Network Bootfor ESC+9, you can use 'show config script' or 'show config options' under rbsu> (Rom-Based Setup Utility) prompt.You can also type Esc 8 for configuring raid controller (instead of F8, use Esc +8 in vt100 terminal) You'd better to use standard 80 (column) X 24 (rows) window for putty to get the better display over serial console when using VSP. This includes better grub menu display with highlighted selection bar, full bios startup messages, kernel console and service OK messages etc. It will display nicely in 80x24 standard size putty window through vsp.For Esc + 9 (bios setup through serial console), you can use the following commands to show/set bios serial console baud rate:show config scriptset config bios serial console baud rate 115200 show config bios serial console baud ratePart V: Summary of a typical HP Proliant server serial configuration 1. BIOS serial console redirection etcRefer to part IV2. /etc/grub.conf (for showing kernel message and GRUB on serial console)default=0timeout=8#splashimage=(hd0,0)/grub/splash.xpm.gzserial --unit=0 --speed=115200 --word=8 --parity=no --stop=1 terminal --timeout=10 serial consoletitle Linux Boot (2.4 custom) root (hd0,0) kernel /vmlinuz-2.4.cust ro root=LABEL=/ rhgb quiet console=tty0 console=ttyS0,115200 initrd /initrd-2.4.cust.imgnote: a. --unit=0 or --unit=1 (0 is for ttyS0 and 1 is for ttyS1 )b. remove out 'rhgb quiet' will display all kernel hardware detecting messages. 3. serial console login (/etc/inittab)s0:2345:respawn:/sbin/agetty 115200 ttyS0 vt100 s1:2345:respawn:/sbin/agetty 115200 ttyS1 vt100 4. enable direct serial port loginadd ttyS0 and ttyS1 to /etc/securetty Part VI: Windows EMS and VSPThe following is from -ilo-console.html Emergency Management Services (EMS), you can get a command line prompt and run some basic basic such as configuring IP address and reboot Windows server. You can modify boot.ini file as follows right click on 'my computer', advanced, startup and recovery, click on settings, 'edit' to add the following to boot loader part:redirect=COM2 redirectbaudrate=115200 and append /redirect to the partition partThe example configuration is something like this:[boot loader]timeout=2default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWSredirect=COM2 redirectbaudrate=115200 [operating systems]multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Windows xxxxxx Edition" \ /noexecute=optout /fastdetect /redirect then you can use ssh into ILO, then vsp to get EMS > promptnote: Please check Windows operating system version for correct syntax for enabling EMS. referring to -40e2-4cc9-843a-923143f3456c/EMS.docit might be EMSPort and EMSBandRate instead of redirect and redirectbandratePart VII: How to login serial console between 2 Linux server each otherYou can connect a null modem cable between 2 Linux server, both at com1. Enable console login in /etc/inittab, then you can login from serial console each other.For example, server A and B, when you try to login server B serial console from A, you need to comment out the line in /etc/inittab on server A, then run 'init q', then use minicom to connect to server B serial console. The same way for server A.When you enable serial console login for Linux server, after init q, you should be seeing the following from ps command before you try to connect to it using minicom.5617 ttyS0 Ss+ 0:00 /sbin/agetty 115200 ttyS1 vt100If you are seeing something like this:5617 ttyS0 Ss+ 0:00 /bin/login --You should kill 5617 process first, make sure it's showing 5617 ttyS0 Ss+ 0:00 /sbin/agetty 115200 ttyS1 vt100, which means it's waiting for minicom connection, otherwise, it will not see login prompt from minicomThis way, you can use minicom to login server A and server B each other, as long as the client (login from) is not using ttySx in /etc/inittab, and the server(the one minicom tries to login) is using ttySx in /etc/inittab and it's waiting for connection (ps grep tty - shows it's waiting )References:1. HP Proliant server VSP documentation (bios serial console redirection, etc 2. Redhat knowledgebase - How do I set up a serial terminal and/or console in Red Hat Enterprise Linux? -72133. HP support website document - HP Integrated Lights-Out 2 (iLO 2) - Unable to Use Virtual Serial Port (VSP) =en&cc=us&taskId=110&prodSeriesId=1146658&prodTypeId=18964&objectID=c01702793 4. HP BIOS Serial Console user guide - note: Check above guide for vt100 special keys (such as using ESC + 8 for F8 )5. HP ROM-Based Setup Utility User Guide (RBSU) - 6. Setup a serial console - _up_a_serial_console7. -Serial-Console-HOWTO/index.html8. iLo2 / VSP on RHEL5 missing console messages- =109447626+1284427257960+28353475&threadId=1436569note: put console=tty0 first then console=ttyS1, 115200 to display OK messages in VSP 9. How do I setup serial terminal and serial console for my xen kernel? (Reaht knowledge base DOC-9979)For Xen kernels, the kernel and module line need to be modified. Remember that com1 = ttyS0, com2 = ttyS1, etc.kernel /boot/xen.gz-2.6.18-6.el5fvfix com1=9600,8n1module /boot/vmlinuz-2.6.18-6.el5fvfixxen ro root=LABEL=RHEL5_x86_64 console=tty0 console=ttyS0,9600n8module /boot/initrd-2.6.18-6.el5fvfixxen.img For example, here is the /etc/grub.conf:#boot=/dev/sdadefault=0timeout=15#splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenuserial --unit=0 --speed=115200 --word=8 --parity=no --stop=1terminal --timeout=10 serial consoletitle Red Hat Enterprise Linux Server (2.6.17-1.2519.4.21.el5xen) root (hd0,0) kernel /xen.gz-2.6.17-1.2519.4.21.el5 com1=115200,8n1 module /vmlinuz-2.6.17-1.2519.4.21.el5xen ro root=/dev/VolGroup00/LogVol00 console=tty0 console=ttyS0,115200n8 module /initrd-2.6.17-1.2519.4.21.el5xen.img Modify the above to match the enviroment in which the serial terminal and serial console are being set up for.10. Useful commands:a. setserial -a /dev/ttyS0 b. setserial /dev/ttyS0 uart 16550A port 0x0408 irq 4