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Abhay Bhadani

2009-Mar-03 19:13 UTC

[Xen-users] Source code compiling and booting issue with xen 3.3.0 in fedora 8 system

Hi All,

   I am trying to compile Xen 3.3.0 source code which downloads updates from
mercurial repository.

OS: Fedora 8 Linux

I compiled the source code by using

[root@localhost xen-3.3.0]# make world
[root@localhost xen-3.3.0]# make install
[root@localhost xen-3.3.0]# depmod 2.6.18.8-xen
[root@localhost xen-3.3.0]# mkinitrd -v -f --with=aacraid --with=sd_mod
--with=scsi_mod initrd-2.6.18.8-xen.img 2.6.18.8-xen

then i moved "initrd-2.6.18.8-xen.img" to /boot

edited the grub.conf

title Fedora-base (2.6.23.1-42.fc8)
        root (hd0,5)
        kernel /vmlinuz-2.6.23.1-42.fc8 ro root=LABEL=/ rhgb quiet
        initrd /initrd-2.6.23.1-42.fc8.img
title Fedora (2.6.21-2950.fc8xen)
        root (hd0,5)
        kernel /xen.gz-2.6.21-2950.fc8
        module /vmlinuz-2.6.21-2950.fc8xen ro root=LABEL=/ rhgb quiet
        module /initrd-2.6.21-2950.fc8xen.img

title Source Compiled Xen - 3rd March 2009 (2.6.18.8-xen)
        root (hd0,5)
        kernel /xen-3.3.0.gz
        #module /vmlinuz-2.6.18.8-xen ro root=/dev/sda8 console=tty0 1
        module /vmlinuz-2.6.18.8-xen ro root=LABEL=/ console=tty0
        module /initrd-2.6.18.8-xen.img

When i select 3rd option, i get these messages while booting,



(XEN) *** LOADING DOMAIN 0 ***
.
.
.
(XEN) Dom0 has maximum 1 VCPUs
(XEN) Initrd len 0x6e8600, start ar 0xc0460000
(XEN) Scrubbing Free RAM: .........done.
(XEN) Xen trace buffers: disabled
Red Hat nash version 6.0.19 starting
mount: could not find filesystem ''/dev/root''
setuproot: moving /dev failed: No such file or directory
setuproot: error mounting /proc : No such file or directory
setuproot: error mounting /sys : No such file or directory
switchroot: mount failed: No such file or directory


After this the system hangs....

it seems it is unable to mount root filesystem. What changes needs to be
done to make things work.

Any suggestions.

Thanks in advance.

Regards,
Abhay Bhadani


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http://lists.xensource.com/xen-users

John Krautheim

2009-Mar-04 13:15 UTC

head link

Re: [Xen-users] Source code compiling and booting issue with xen 3.3.0 in fedora 8 system

Are you sure the initrd made correctly? It has the initial drivers to read
your drive. Xen is booting, so you probably not getting the right drivers to
start your OS. If you didn''t modify the modprobe.conf file, it probably
had
a alias for ata-generic, which is not supported under the 2.6.18 kernel.
Change the ata-generic to ahci and remake your initrd file. You could also
try ide-generic.

Also, unless your using aacraid, sd_mod, and scsi_mod, you can delete those
from your initrd file as well. The mkinitrd will include the modules you
need.

Hope this helps.

John Krautheim, CISSP, PMP
jkrautheim@gmail.com


On Tue, Mar 3, 2009 at 2:13 PM, Abhay Bhadani <abhadani@gmail.com> wrote:
> Hi All,
>
>    I am trying to compile Xen 3.3.0 source code which downloads updates
> from mercurial repository.
>
> OS: Fedora 8 Linux
>
> I compiled the source code by using
>
> [root@localhost xen-3.3.0]# make world
> [root@localhost xen-3.3.0]# make install
> [root@localhost xen-3.3.0]# depmod 2.6.18.8-xen
> [root@localhost xen-3.3.0]# mkinitrd -v -f --with=aacraid --with=sd_mod
> --with=scsi_mod initrd-2.6.18.8-xen.img 2.6.18.8-xen
>
> then i moved "initrd-2.6.18.8-xen.img" to /boot
>
> edited the grub.conf
>
> title Fedora-base (2.6.23.1-42.fc8)
>         root (hd0,5)
>         kernel /vmlinuz-2.6.23.1-42.fc8 ro root=LABEL=/ rhgb quiet
>         initrd /initrd-2.6.23.1-42.fc8.img
> title Fedora (2.6.21-2950.fc8xen)
>         root (hd0,5)
>         kernel /xen.gz-2.6.21-2950.fc8
>         module /vmlinuz-2.6.21-2950.fc8xen ro root=LABEL=/ rhgb quiet
>         module /initrd-2.6.21-2950.fc8xen.img
>
> title Source Compiled Xen - 3rd March 2009 (2.6.18.8-xen)
>         root (hd0,5)
>         kernel /xen-3.3.0.gz
>         #module /vmlinuz-2.6.18.8-xen ro root=/dev/sda8 console=tty0 1
>         module /vmlinuz-2.6.18.8-xen ro root=LABEL=/ console=tty0
>         module /initrd-2.6.18.8-xen.img
>
> When i select 3rd option, i get these messages while booting,
>
>
>
> (XEN) *** LOADING DOMAIN 0 ***
> .
> .
> .
> (XEN) Dom0 has maximum 1 VCPUs
> (XEN) Initrd len 0x6e8600, start ar 0xc0460000
> (XEN) Scrubbing Free RAM: .........done.
> (XEN) Xen trace buffers: disabled
> Red Hat nash version 6.0.19 starting
> mount: could not find filesystem ''/dev/root''
> setuproot: moving /dev failed: No such file or directory
> setuproot: error mounting /proc : No such file or directory
> setuproot: error mounting /sys : No such file or directory
> switchroot: mount failed: No such file or directory
>
>
> After this the system hangs....
>
> it seems it is unable to mount root filesystem. What changes needs to be
> done to make things work.
>
> Any suggestions.
>
> Thanks in advance.
>
> Regards,
> Abhay Bhadani
>
>
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users
>

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Abhay Bhadani

2009-Mar-04 17:25 UTC

head link

Re: [Xen-research] Source code compiling and booting issue with xen 3.3.0 in fedora 8 system

Thanks for the reply. But i looked in /etc/modprobe.conf file. there is no
such thing.

[root@localhost etc]# cat /etc/modprobe.conf
alias eth0 e100
alias scsi_hostadapter libata
alias scsi_hostadapter1 ata_piix
alias snd-card-0 snd-intel8x0
options snd-card-0 index=0
options snd-intel8x0 index=0
[root@localhost etc]#

I also saw related directories and files like modprobe.d/ but couldn''t
find
out.

do u mean to say that  /xen-3.3.0/build-linux-2.6.18-xen_x86_32/ contains
this file. but i was unable to find modprobe.conf inside xen-3.3.0
directory.

I m still facing the same problem.

Any more suggestions.

Thanks,
Abhay


On Wed, Mar 4, 2009 at 6:42 PM, John Krautheim <jkrautheim@gmail.com>
wrote:
> Are you sure the initrd made correctly? It has the initial drivers to read
> your drive. Xen is booting, so you probably not getting the right drivers
to
> start your OS. If you didn''t modify the modprobe.conf file, it
probably had
> a alias for ata-generic, which is not supported under the 2.6.18 kernel.
> Change the ata-generic to ahci and remake your initrd file.
>
> Also, unless your using aacraid, sd_mod, and scsi_mod, you can delete those
> from your initrd file as well. The mkinitrd will include the modules you
> need.
>
> Hope this helps.
>
> John Krautheim, CISSP, PMP
> jkrautheim@gmail.com
>
>
> On Wed, Mar 4, 2009 at 7:12 AM, Abhay Bhadani <abhadani@gmail.com>
wrote:
>
>>
>> Hi All,
>>
>>    I am trying to compile Xen 3.3.0 source code which downloads updates
>> from mercurial repository.
>>    I am trying to modify the CPU scheduler, but before i make any
changes
>> i need to test it by installing it from source.
>>
>> OS: Fedora 8 Linux
>>
>> I compiled the source code by using
>>
>> [root@localhost xen-3.3.0]# make world
>> [root@localhost xen-3.3.0]# make install
>> [root@localhost xen-3.3.0]# depmod 2.6.18.8-xen
>> [root@localhost xen-3.3.0]# mkinitrd -v -f --with=aacraid --with=sd_mod
>> --with=scsi_mod initrd-2.6.18.8-xen.img 2.6.18.8-xen
>>
>> then i moved "initrd-2.6.18.8-xen.img" to /boot
>>
>> edited the grub.conf
>>
>> title WindowsXP
>>         rootnoverify (hd0,0)
>>         chainloader +1
>> title Fedora-base (2.6.23.1-42.fc8)
>>         root (hd0,5)
>>         kernel /vmlinuz-2.6.23.1-42.fc8 ro root=LABEL=/ rhgb quiet
>>         initrd /initrd-2.6.23.1-42.fc8.img
>> title Fedora (2.6.21-2950.fc8xen)
>>         root (hd0,5)
>>         kernel /xen.gz-2.6.21-2950.fc8
>>         module /vmlinuz-2.6.21-2950.fc8xen ro root=LABEL=/ rhgb quiet
>>         module /initrd-2.6.21-2950.fc8xen.img
>>
>> title Source Compiled Xen - 3rd March 2009 (2.6.18.8-xen)
>>         root (hd0,5)
>>         kernel /xen-3.3.0.gz
>>         #module /vmlinuz-2.6.18.8-xen ro root=/dev/sda8 console=tty0 1
>>         module /vmlinuz-2.6.18.8-xen ro root=LABEL=/ console=tty0
>>         module /initrd-2.6.18.8-xen.img
>>
>> When i select 4th option, i get these messages while booting,
>>
>>
>>
>> (XEN) *** LOADING DOMAIN 0 ***
>> .
>> .
>> .
>> (XEN) Dom0 has maximum 1 VCPUs
>> (XEN) Initrd len 0x6e8600, start ar 0xc0460000
>> (XEN) Scrubbing Free RAM: .........done.
>> (XEN) Xen trace buffers: disabled
>> Red Hat nash version 6.0.19 starting
>> mount: could not find filesystem ''/dev/root''
>> setuproot: moving /dev failed: No such file or directory
>> setuproot: error mounting /proc : No such file or directory
>> setuproot: error mounting /sys : No such file or directory
>> switchroot: mount failed: No such file or directory
>>
>>
>> After this the system hangs....
>>
>> it seems it is unable to mount root filesystem. What changes needs to
be
>> done to make things work.
>>
>> Any suggestions.
>>
>> Thanks in advance.
>>
>> Regards,
>> Abhay Bhadani
>>
>>
>>
>>
>>
>> _______________________________________________
>> Xen-research mailing list
>> Xen-research@lists.xensource.com
>> http://lists.xensource.com/mailman/listinfo/xen-research
>>
>>
>

_______________________________________________
Xen-research mailing list
Xen-research@lists.xensource.com
http://lists.xensource.com/mailman/listinfo/xen-research

Xen users - Mar 2009 - Source code compiling and booting issue with xen 3.3.0 in fedora 8 system

[Xen-users] Source code compiling and booting issue with xen 3.3.0 in fedora 8 system

Re: [Xen-users] Source code compiling and booting issue with xen 3.3.0 in fedora 8 system

Re: [Xen-research] Source code compiling and booting issue with xen 3.3.0 in fedora 8 system