[Netkit.users] R: Netkit on Fedora 9

[Gianluca Salvalaggio]

Julien,
 thanks for your hints but they didn't work.
 /dev/shm is mounted with default options, and I disabled SElinux (on
/etc/selinux/config) but ...the virtual machine still doesn't start. The
message is always the same:

============= Starting virtual machine "pc1" =============
   Kernel:     /opt/netkit/kernel/netkit-kernel
   Modules:    /opt/netkit/kernel/modules
   Memory:     16 MB
   Model fs:   /opt/netkit/fs/netkit-fs
   Filesystem: /opt/pc1.disk (new)
   Interfaces: eth0 @ a (/root/.netkit/hubs/vhub_root_a.cnct)
   Hostfs at:  /root

Running ==> /opt/netkit/bin/uml_switch -hub -unix
/root/.netkit/hubs/vhub_root_a.cnct </dev/null 2>&1
Running ==> /opt/netkit/kernel/netkit-kernel
modules=/opt/netkit/kernel/modules name=pc1 title=pc1 umid=pc1 mem=20M
ubd0=/opt/pc1.disk,/opt/netkit/fs/netkit-fs root=98:1
uml_dir=/root/.netkit/mconsole
eth0=daemon,,,/root/.netkit/hubs/vhub_root_a.cnct hosthome=/root con0=xterm
con1=null SELINUX_INIT=0
[root at nemo opt]# Core dump limits :
        soft - 0
        hard - NONE
Checking that ptrace can change system call numbers...OK
Checking syscall emulation patch for ptrace...OK
Checking advanced syscall emulation patch for ptrace...check_ptrace :
expected SIGTRAP or (SIGTRAP | 0x80), got status = 256

Gianluca
  

-----Messaggio originale-----
Da: netkit.users-bounces at list.dia.uniroma3.it
[mailto:netkit.users-bounces at list.dia.uniroma3.it] Per conto di Julien
Iguchi-Cartigny
Inviato: martedì 21 ottobre 2008 14.07
A: Users of the Netkit Network Emulation System
Oggetto: Re: [Netkit.users] Netkit on Fedora 9

Other option: Fedora and Redhat are very strict about SeLinux policies.
Maybe try to switch off SeLinux and retry.

Julien.

Julien Iguchi-Cartigny wrote:
> I'm not sure but maybe it's the /dev/shm mounting point with the 
> option noexec. Try "mount" command, and if you have the option noexec 
> for the entry /dev/shm, you need to remove the noexec option in the 
> /etc/fstab file and reboot, because UML needs exec rights on shared
memory.
> 
> Julien.
> 
> Gianluca Salvalaggio wrote:
>> Hi everybody,
>>  i'm trying to using Netkit (latest version) on Fedora 9.
>> The check_configuration.sh command tells that everything is OK:
>> ---------------------------------------------------------------------
>> -----------------------
>> ./check_configuration.sh
>>>  Checking path correctness... passed.
>>>  Checking environment... passed.
>>>  Checking for availability of man pages... passed.
>>>  Checking for proper directories in the PATH... passed.
>>>  Checking for availability of auxiliary tools:
>>         awk          : ok
>>         basename     : ok
>>         date         : ok
>>         dirname      : ok
>>         find         : ok
>>         getopt       : ok
>>         grep         : ok
>>         head         : ok
>>         id           : ok
>>         kill         : ok
>>         ls           : ok
>>         lsof         : ok
>>         ps           : ok
>>         readlink     : ok
>>         wc           : ok
>>         port-helper  : ok
>>         tunctl       : ok
>>         uml_mconsole : ok
>>         uml_switch   : ok
>> passed.
>>>  Checking for availability of terminal emulator applications:
>>         xterm          : found
>>         konsole        : found
>>         gnome-terminal : not found
>> passed.
>>  
>> [ READY ] Congratulations! Your Netkit setup is now complete!
>>           Enjoy Netkit!
>> ---------------------------------------------------------------------
>> ----------------------- but when I start a virtual machine  I get the 
>> following message and nothing happens:
>>  
>>  vstart -L --eth0=a --verbose pc1
>>  
>>
>> ============= Starting virtual machine "pc1" =============
>>    Kernel:     /opt/netkit/kernel/netkit-kernel
>>    Modules:    /opt/netkit/kernel/modules
>>    Memory:     16 MB
>>    Model fs:   /opt/netkit/fs/netkit-fs
>>    Filesystem: /opt/netkit/pc1.disk (new)
>>    Interfaces: eth0 @ a (/root/.netkit/hubs/vhub_root_a.cnct)
>>    Hostfs at:  /root
>>  
>> Running ==> /opt/netkit/bin/uml_switch -hub -unix 
>> /root/.netkit/hubs/vhub_root_a.cnct </dev/null 2>&1 Running ==> 
>> /opt/netkit/kernel/netkit-kernel modules=/opt/netkit/kernel/modules 
>> name=pc1 title=pc1 umid=pc1 mem=20M 
>> ubd0=/opt/netkit/pc1.disk,/opt/netkit/fs/netkit-fs root=98:1 
>> uml_dir=/root/.netkit/mconsole 
>> eth0=daemon,,,/root/.netkit/hubs/vhub_root_a.cnct hosthome=/root 
>> con0=xterm con1=null SELINUX_INIT=0 [root at nemo netkit]# Core dump 
>> limits :
>>         soft - 0
>>         hard - NONE
>> Checking that ptrace can change system call numbers...OK Checking 
>> syscall emulation patch for ptrace...OK Checking advanced syscall 
>> emulation patch for ptrace...check_ptrace :
>> expected SIGTRAP or (SIGTRAP | 0x80), got status = 256
>> ---------------------------------------------------------------------
>> ---------------------------------------------------------------------
>> ---------
>> What is the problem?
>> Thanks
>>   Gianluca
>>  
>>
>>
>> ---------------------------------------------------------------------
>> ---
>>
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>> Netkit.users at list.dia.uniroma3.it
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> 
> 
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