Xen users - Mar 2008 - Kernel Panic - not syncing: Attempted to kill init!

Hello Xen users,

I tried to install Xen 3.1.0 on Scientific Linux (RHEL4), but this 
mission failed.. Hope you can help me by finding the reason for my problem.
I downloaded the xen sources from 
http://bits.xensource.com/oss-xen/release/3.1.0/src.tgz/xen-3.1.0-src.tgz 
and compiled them by running "make" and "./install.sh". This
seemed to
work.
After setting up grub like this,

    # grub.conf generated by anaconda
    #
    # Note that you do not have to rerun grub after making changes to
    this file
    # NOTICE:  You have a /boot partition.  This means that
    #          all kernel and initrd paths are relative to /boot/, eg.
    #          root (hd0,0)
    #          kernel /vmlinuz-version ro root=/dev/hda3 console=tty0
    console=ttyS0,9600
    #          initrd /initrd-version.img
    boot=/dev/hda1
    default=0
    timeout=5
    splashimage=(hd0,0)/grub/splash.xpm.gz
    hiddenmenu
    #
    title Scientific Linux (2.6.9-11.EL)
     root (hd0,0)
     kernel /vmlinuz-2.6.9-11.EL ro root=LABEL=/ rhgb quiet console=tty0
    console=ttyS0,9600
     initrd /initrd-2.6.9-11.EL.img
    *#
    title Xen 3.1 / XenLinux 2.6
     root (hd0,0)
     kernel /xen-3.1.0.gz dom0_mem=256000 noreboot
     module /vmlinuz-2.6.18-xen ro root=LABEL=/ rhgb quiet console=tty0
    console=ttyS0,9600**
     module /initrd-2.6.18-xen.img
    *

I shut down my machine and restarted it. But it won''t come up... as you
can see right here:

    (XEN) Command line: /xen-3.1.0.gz dom0_mem=256000 noreboot

        (...)

    System RAM: 511MB (523356KB)
    Xen heap: 10MB (10272KB)
    Domain heap initialised: DMA with 32 bits
    PAE enabled, limit: 16GB
    Processor #0 15:0 APIC version 20
    IOAPIC[0]: apic_id 1, version 32, adress 0xfec00000, GSI 0-23
    Enabling APIC mode: Flat, Using 1 I/O APICs
    Using scheduler: SMP Credit Scheduler (credit)
    Detected 1694.889MHz processor
    CPU0: Intel(R) Pentium(R) 4 CPU 1700MHz stepping 0a
    Mapping CPU0 to node 255
    Total of 1 processors activated.
    ENABLING IO-APIC IRQs
     -> Using new ACK method
    Platform timer is 1.193MHz PIT
    Brought up 1 CPUs
    *** LOADING DOMAIN 0 ***
     Xen kernel: 32-bit, PAE, lsb
     Guest kernel: 32-bit, PAE, lsb, paddr 0xc0100000 -> 0xc045f53c
    PHYSICAL MEMORY ARRANGEMENT:
     Dom0 alloc.: 000000001f000000 -> 000000001f800000 (61952 pages to
    be allocated)
    VIRTUAL MEMORY ARRANGEMENT:
     Loaded kernel: c....... -> c.......
     Init. ramdisk: c....... -> c.......
     Phys-Mach mag: c....... -> c.......
     Start info:    c....... -> c.......
     Page tables:   c....... -> c.......
     Boot stack:    c....... -> c.......
     TOTAL:         c....... -> c.......
     ENTRY ADRESS:  c....... -> c.......
    Dom0 has maximum 1VCPUs
    Initrd len 0x112200, start at 0xc0460000
    Scrubbing Free RAM: .. done.
    Xen trace buffers: disabled
    Std Loglevel: Errors and warnings
    Guest Loglevel: Nothing (Rate-limited: Errors and warnings)
    *Kernel Panic - not syncing: Attempted to kill init!*

Is there anyone who has an idea what I''m doing wrong?! Tried it by 
myself for a few hours, but I''m in the dark...

Thanks for every reply to this email!

Ciao,
Fabian



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