Menu
▾
▴
Re: [uml-user] Conserver shows ttys down
|
From: <jur...@ph...> - 2004-05-14 06:17:25
|
Are you sure it just hangs ? I had this problem too, until I noticed
that I did get response on my network, so I settled for another
configuration.
I notice now that you do have networking up. Instead of trying
now with conserver, first check if you can connect with telnet or
ssh. If it is possible then your UML instance runs fine, and the
only problem is the configuration of the consoles.
I noticed that the default configuration for the Debian woody
images had in /etc/inittab only an instance for running a console
on tty1, which resolved to an xterm. I wanted to be able to run
my UML's in the background without them spawning xterms.
The first thing I did in my experimentation, was to make sure
that on tty0 also a getty was spawned. This also meant that
I had to modify /etc/securetty before getty would present
a login prompt on tty0.
Then I started experimenting with the con setting, to be able to
suppress the xterm, using con=pty, con=fd, well all possible
settings of con eventually.
The point I got to is that after some experimentation and much
rebooting of UML instances, I could get them to run like this :
uml_kernel ubd0=... ubd1= ... con=null con0=fd:1 > logfile
With con=null I remove all consoles. However, I found out that
when the console cannot write to anything the UML exits. For that
you need the part 'con0=fd:1', and the I redirect the output to a
logfile. This way I can properly start my UML instances in the
background, have a look at their boot output, and I connect to them
using the network.
Oh, and have you tried doing
$ uml_mconsole 4LQFlS cad
This will invoke the control-alt-delete handler in your UML instance.
If this works this means that init is running in it. That way you would
know for certain that you UML instance is up, and that it is a problem
with your console configuration.
Regards,
Jurgen
Darren Bolding <da...@fa...>
Sent by:
use...@li...
2004-05-13 12:29 PM
To: Use...@li...
cc: (bcc: Jurgen Defurne/BRG/CE/PHILIPS)
Subject: [uml-user] Conserver shows ttys down
Classification:
Hello,
Thanks to the help of some kind folks on IRC today, I managed to get over
a few hurdles, but I still can't seem to figure one out.
I'm trying to follow Russell Adams nifty howto on using conserver to
manage consoles for multiple uml's.
I can get a guest kernel up and running, and have the networking working
the way I like. However, whenever I try and connect con0 and con1 to
a pty, such as /dev/ptyp3 or /dev/ptyy0, I can't seem to get conserver to
see anything on the associated tty (/dev/ttyp3 or /dev/ttyy0).
Conserver comes up and says the hosts are down. I've passed conserver
-O1 to have it repoll every minute, and I've hit the conserver processes
with
USR1 to get it to repoll- to no avail.
The kernel runs until it gets to "Initializing stdio console driver" and
then
just hangs.
Someone mentioned that I should verify that the console drivers were
compiled
in- can someone point me to which kernel options they refer to?
I've looked at the kernel config output, and it looks correct.
I've attached some debugging information below. Can anyone point me in
the
right direction?
Thanks again for your help!
--D
-- Output below --
[darren@cappuccino uml]$ uname -a
Linux cappuccino 2.6.4-skas3-bridge #1 Thu May 13 03:40:14 EDT 2004 i686
i686 i386 GNU/Linux
[darren@cappuccino uml]$ ./linux-2.4.24
ubd0=root_fs.fc-2-client.pristine.20040504 con0=tty:/dev/ptyp3
con1=tty:/dev/ptyp4 con=null
Checking for the skas3 patch in the host...found
Checking for /proc/mm...found
Checking for /dev/anon on the host...Not available (open failed with errno
2)
Linux version 2.4.24-1um (root@cappuccino) (gcc version 3.2.2 20030222
(Red Hat Linux 3.2.2-5)) #1 Thu Apr 15 18:22:43 EDT 2004
On node 0 totalpages: 8192
zone(0): 8192 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: ubd0=root_fs.fc-2-client.pristine.20040504
con0=tty:/dev/ptyp3 con1=tty:/dev/ptyp4 con=null root=/dev/ubd0
Calibrating delay loop... 3460.30 BogoMIPS
Memory: 29012k available
Dentry cache hash table entries: 4096 (order: 3, 32768 bytes)
Inode cache hash table entries: 2048 (order: 2, 16384 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 8192 (order: 3, 32768 bytes)
Checking for host processor cmov support...Yes
Checking for host processor xmm support...No
Checking that ptrace can change system call numbers...OK
Checking that host ptys support output SIGIO...Yes
Checking that host ptys support SIGIO on close...No, enabling workaround
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
VFS: Disk quotas vdquot_6.5.1
Journalled Block Device driver loaded
devfs: v1.12c (20020818) Richard Gooch (rg...@at...)
devfs: boot_options: 0x1
JFFS version 1.0, (C) 1999, 2000 Axis Communications AB
JFFS2 version 2.1. (C) 2001 Red Hat, Inc., designed by Axis Communications
AB.
pty: 256 Unix98 ptys configured
SLIP: version 0.8.4-NET3.019-NEWTTY (dynamic channels, max=256).
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
PPP generic driver version 2.4.2
Universal TUN/TAP device driver 1.5 (C)1999-2002 Maxim Krasnyansky
SCSI subsystem driver Revision: 1.00
scsi0 : scsi_debug, Version: 0.61 (20020815), num_devs=1, dev_size_mb=8,
opts=0x0
Vendor: Linux Model: scsi_debug Rev: 0004
Type: Direct-Access ANSI SCSI revision: 03
blkmtd: error: missing `device' name
Initializing software serial port version 1
mconsole (version 2) initialized on /home/darren/.uml/4LQFlS/mconsole
Partition check:
ubda: unknown partition table
UML Audio Relay (host dsp = /dev/sound/dsp, host mixer = /dev/sound/mixer)
Initializing stdio console driver
(It just hangs at this point)
[darren@cappuccino uml]$ ./linux-2.4.24 --showconfig | grep CHAN
CONFIG_FD_CHAN=y
CONFIG_NULL_CHAN=y
CONFIG_PORT_CHAN=y
CONFIG_PTY_CHAN=y
CONFIG_TTY_CHAN=y
CONFIG_XTERM_CHAN=y
CONFIG_CON_ZERO_CHAN="fd:0,fd:1"
CONFIG_CON_CHAN="xterm"
CONFIG_SSL_CHAN="pty"
Thanks again for any and all help!
--D
-------------------------------------------------------
This SF.Net email is sponsored by: SourceForge.net Broadband
Sign-up now for SourceForge Broadband and get the fastest
6.0/768 connection for only $19.95/mo for the first 3 months!
http://ads.osdn.com/?ad_id=2562&alloc_id=6184&op=click
_______________________________________________
User-mode-linux-user mailing list
Use...@li...
https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
|