similar to: Login Console on ttyUSB0

Hello all, I'd like to connect to a CentOS 5.2 system's console through a null-modem cable. An USB to serial converter is connected to that system's USB port. When using this configuration statement in "/etc/inittab"... ... # Run gettys on serial line (that is, a serial line connected to USB0) usb0:12345:respawn:/sbin/agetty -L ttyUSB0 9600 vt100 ... ...I get these

I am trying to get a CentOS 6.3 serial console to work with IPMI SOL. I think I have everything working but maybe the wrong baud rate on the getty: $ ipmitool -I lanplus -U root -H 10.0.0.14 sol activate Password: [SOL Session operational. Use ~? for help] ?????????? 10.0.0.14 is the DRAC IP address of the CentOS 6.3 box. It accepts the password and connects me to the console but then when I

Hi Fi, cmdline: console=hvc0 systemd.wants=getty at hvc0 Connect via virt-manager - View / Text Consoles / Text Console no.: Fedora 24 (Rawhide) Kernel 4.3.0-0.rc3.git2.4.fc24.x86_64 on an x86_64 (hvc0) localhost login: root Last login: Fri Oct 2 17:28:36 on hvc0 # tty /dev/hvc0 # systemctl status getty at hvc0.service ? getty at hvc0.service - Getty on hvc0 Loaded: loaded

I have been trying to get an EVDO modem to work with Centos 5. I can make it dial out with wvdial only when I'm the root user. Otherwise I get this error: Cannot open /dev/ttyUSB0: Device or resource busy I added the user to the uucp group. crw-rw---- 1 root uucp 188, 0 Dec 3 02:30 /dev/ttyUSB0 crw-rw---- 1 root uucp 188, 1 Dec 3 02:30 /dev/ttyUSB1 crw-rw---- 1 root uucp 188, 2 Dec

Thread stealing is not nice, even if the subject is generic. > Related question - what physical device does /dev/xvc0 refer to? What can > I > connect to get to the agetty running on this device? > xvc0 is a xen virtual console and does not correspond directly to a physical device that I am aware of. Yves-Gaël Chény seemed to have answered the second part of the question: >

On Wed, December 10, 2014 17:51, Gordon Messmer wrote: > On 12/10/2014 12:47 PM, Dan Hyatt wrote: >> I've a virtual instance and I need to know its IP address after it has >> finished booting up, to know where to ssh into it. I've tried adding >> "ip -4 addr > /dev/tty0" to rc.local, but that obviously doesn't work, >> because the login prompt

Hello List, I'm ironing out details to upgrade a few systems to CentOS7. My servers have BMC with Serial over LAN support. In C5 and C6, I determined how to have BIOS/POST, kernel, and serial console access. I'm reading up on the method to accomplish the pieces with C7. Presently SoL output works, so I see BIOS/POST messages and the GRUB boot list. My changes to enable serial

Hi list, I am running a virtualized server. Dom0 uses Xen 3.2.1 with Debian Etch and a custom kernel 2.6.21 created by my webhosting company. I install my domU using debootstrap for a Debian Etch with 2.6.18-6-xen-amd64 kernel. Everything works well except the fact that once the VM is started I cannot "xm console" into it. It only works while it is booting and while it is shutting

Alle, After upgrading from 6.4 to 6.5, our serial console configuration non longer work. We have the following upstart file: [cwfox at hilo ~]$ cat /etc/init/ttyS0.conf # ttyS0 - agetty # # This service maintains a agetty on ttyS0. stop on runlevel [S016] start on runlevel [23] respawn exec agetty -h -L -w /dev/ttyS0 115200 vt100 [cwfox at hilo ~]$ And the following in /etc/securetty:

Hi, I''m running Xen 4 on Slack64. I haven''t console login prompt to domU until I changed xvc0 to hvc0 on /etc/inittab file. No I have access to login but whenever I try to login I get this error from /var/adm/secure file root@darkstar:/var/adm# cat secure Apr 28 22:49:22 darkstar login[1286]: ILLEGAL ROOT LOGIN on `hvc0'' Apr 28 22:49:45 darkstar last message repeated

On 01/29/2016 05:08 AM, Peter Steele wrote: > We have been researching stuck zombie processes in our libvirt lxc > containers. What we found was: > > 1) Each zombie’s parent was pid 1. init which symlinks to systemd. > 2) In some cases, the zombies were launched by systemd, in others the > zombie was inherited. > 3) While the child is in the zombie state, the parent

>On Thu, 2006-06-29 at 20:48 -0700, Chris Fox wrote: >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >> >> Rodrigo Barbosa wrote: >> >> > you might want to try agetty: >> > >> > T0:23:respawn:/sbin/agetty 9600 ttyS0 vt100 >> > >> > Not sure if it will work, but seems likely. >> > >> I've always

On Fri, Jan 29, 2016 at 10:25:08AM -0800, Peter Steele wrote: >On 01/29/2016 05:08 AM, Peter Steele wrote: >> We have been researching stuck zombie processes in our libvirt lxc >> containers. What we found was: >> >> 1) Each zombie’s parent was pid 1. init which symlinks to systemd. >> 2) In some cases, the zombies were launched by systemd, in others the >>

Hi, Trying to get vga console and a serial console to both work. I can get either one to fully work but not both. When using serial, I do still get a login prompt on the vga, But not all the boot up output. Seems like half to the vga and the rest to the serial port I added lines to /etc/inittab # console port T0:12345:respawn:/sbin/agetty -L ttyS0 115200 And added to /etc/lilo.conf

I am having trouble sending sysrq commands over USB serial, and I'm not sure what else to check. I have two identical machines, each with usb-to-serial adapters, joined by a null modem adapter. One runs an agetty, the other minicom. I can log in over the agetty as a user and it works as expected, until I try to send a sysrq. To send a break in minicom, I type [Ctrl]+[a] then [f]. Then I

Hello, I''m enjoying my Xen quest very much thus far. Q: How does one handle the situation of multiple root users on dom0 trying to `xm console'' to the same guest? I was unable to use the virtual console at all until I added a line to inittab for agetty to spawn on xvc0. Now I''m not sure of an elegant solution for supporting multiple consoles (possible?), or even

Hi, I need some help to clarify TTY and virtual consoles. Thanks a lot. 1. I learned that to switch from one TTY to another, one must be at the physical machine. Does the same apply to virtual consoles? 2. My /etc/inittab includes the following. Does that mean there's only one instance of TTY on my CentOS? ... #

Is there a way to get GRUB2 and the kernel to run a "serial" console under KVM? I'm running a Fedora 20 desktop, with libvirt-managed VMs. When I run a CentOS 6 VM, I can set both the boot loader and kernel up to use ttyS0 and get a console compatible with "virsh console". When I try the same with a CentOS 7 VM, it doesn't work. If I set it to ttyS0, I just

I've been installing CentOS via PXE and using a serial console interface. The installation works great. I notice that during the install process, the following line gets added automatically to /etc/inittab: co:2345:respawn:/sbin/agetty ttyS0 9600 vt100-nav Which package does this? Is it kudzu? Thanks for any insights. -- Jiann-Ming Su "I have to decide between two equally

I'm using virt-v2v (0.8.3 currently) on EL6 to convert Xen guests to KVM. I see how virt-v2v converts any existing references to xvc0 and hvc0 serial console devices in /etc/inittab, /etc/securetty, and grub.conf. However, my Xen DomU grub.conf's don't have any mention of console= on the kernel lines, because the Xen DomU kernel defaults to using the correct xvc0 console. As a