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lescho
n00b
Joined: 16 Aug 2004
Posts: 2
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 Posted: Mon Aug 16, 2004 6:52 pm Post subject: Usermode-Linux (UML) without X can't find vc's |
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Ok, I set up UML on a Gentoo host using gentoo-dev-sources-2.6.7-r13 and skas-patch. When I'm using the prebuild umlbuildroot-root_fs from sourceforge it boots without errors. I also tested virtual ethx via tuntap and it worked great.
So I started building my own gentoo-root_fs as described in the "Gentoo Linux Developer's guide to system testing with User-Mode-Linux"
Annoyingly my gentoo-uml complains about missing vc's and hangs after starting local.
I suppose this has something do to with my host box running no X11 (and i definitely not going to install it).
I already removed xterm support from the uml-kernel wich is 2.4.24-r9.
Any suggestions?
Here is what I get when i try booting uml:
| Code: |
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-uml1-r9-1um (root@ncc-1701-e) (gcc version 3.3.3 20040412 (Gentoo Linux 3.3.3-r6, ssp-3.3.2-2, pie-8.7.6)) #8 Mon Aug 16 16:48:42 CEST 2004
On node 0 totalpages: 8192
zone(0): 8192 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: ubd0=root_fs ubd1=swap_fs eth0=tuntap,,,192.168.0.66 eth1=tuntap,,,192.168.1.1 root=/dev/ubd0
Calibrating delay loop... 760.21 BogoMIPS
Memory: 28908k 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 (rgooch@atnf.csiro.au)
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
PPP Deflate Compression module registered
PPP BSD Compression module registered
Universal TUN/TAP device driver 1.5 (C)1999-2002 Maxim Krasnyansky
blkmtd: error: missing `device' name
Initializing software serial port version 1
mconsole (version 2) initialized on /home/lescho/.uml/QqytXw/mconsole
Partition check:
ubda: unknown partition table
ubdb: unknown partition table
Initializing stdio console driver
Netdevice 0 : TUN/TAP backend - IP = 192.168.0.66
Netdevice 1 : TUN/TAP backend - IP = 192.168.1.1
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 2048 bind 4096)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (ext2 filesystem) readonly.
Mounted devfs on /dev
INIT: version 2.84 booting
Gentoo Linux; http://www.gentoo.org/
Copyright 2001-2004 Gentoo Technologies, Inc.; Distributed under the GPL
* Mounting proc at /proc... [ ok ]
* Starting devfsd...Started device management daemon v1.3.25 for /dev
[ ok ]
* Activating (possible) swap...Adding Swap: 525304k swap-space (priority -1)
[ ok ]
* Remounting root filesystem read-only (if necessary)... [ ok ]
* Checking root filesystem.../dev/ubd/0 was not cleanly unmounted, check forced.
/dev/ubd/0: |========================================================| 100.0%
/dev/ubd/0: 32687/131328 files (0.1% non-contiguous), 99398/262144 blocks
* Filesystem repaired
[ !! ]
* Remounting root filesystem read/write... [ ok ]
* You need to set /etc/hostname to a valid hostname
* Setting hostname to localhost... [ ok ]
* Calculating module dependencies... [ ok ]
modprobe: Can't open dependencies file /lib/modules/2.4.24-uml1-r9-1um/modules.dep (No such file or directory)
* Checking all filesystems... [ ok ]
* Mounting local filesystems... [ ok ]
* Activating (possibly) more swap... [ ok ]
* Caching service dependencies... [33;01m*[0m Service 'sysklogd' already provide 'logger'!;
[33;01m*[0m Not adding service 'syslog-ng'...
* Setting system clock to hardware clock [UTC]... [ ok ]
* Configuring kernel parameters... [ ok ]
* Updating environment... [ ok ]
* Cleaning /var/lock, /var/run... [ ok ]
* Cleaning /tmp directory... [ ok ]
* Setting user font...Couldnt open /dev/vc/1
Couldnt open /dev/vc/2
Couldnt open /dev/vc/3
Couldnt open /dev/vc/4
Couldnt open /dev/vc/5
Couldnt open /dev/vc/6
Couldnt open /dev/vc/7
modprobe: Can't open dependencies file /lib/modules/2.4.24-uml1-r9-1um/modules.dep (No such file or directory)
Couldnt open /dev/vc/8
modprobe: Can't open dependencies file /lib/modules/2.4.24-uml1-r9-1um/modules.dep (No such file or directory)
Couldnt open /dev/vc/9
modprobe: Can't open dependencies file /lib/modules/2.4.24-uml1-r9-1um/modules.dep (No such file or directory)
Couldnt open /dev/vc/10
modprobe: Can't open dependencies file /lib/modules/2.4.24-uml1-r9-1um/modules.dep (No such file or directory)
Couldnt open /dev/vc/11
* Failed to set user font
[ !! ]
* Loading key mappings...Couldnt get a file descriptor referring to the console
* Error loading key mappings
[ !! ]
* Bringing lo up... [ ok ]
* Initializing random number generator... [ ok ]
INIT: Entering runlevel: 3
* Mounting network filesystems... [ ok ]
* Starting local... [ ok ] HANGUP!!!
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davidc
n00b
Joined: 30 Nov 2003
Posts: 60
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| Posted: Tue Aug 17, 2004 1:44 pm Post subject: |
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To solve the hangup, append:
con0=fd:0,fd:1 con=pts
to your options. You will also need to modify /etc/inittab (on the root_fs) to have ttys/X instead of ttyX. An example line from my inittab is below:
c1:12345:respawn:/sbin/agetty 38400 ttys/0 linux
I currently have no idea how to solve the vc problems. |
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davidc
n00b
Joined: 30 Nov 2003
Posts: 60
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| Posted: Tue Aug 17, 2004 2:00 pm Post subject: |
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From the selinux-UML guide:
| Quote: | The only errors you see on startup should be along the lines of Couldn't get a file descriptor referring to the console from setfont and keymaps. These errors are harmless, but if you want to get rid of them, do the following:
Code Listing 3.7: Removing cosmetic errors
# rc-update del keymaps
# rc-update del consolefont |
That should get rid of the other errors. |
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