Re: [Xen-fr] procedure d'installation d'une machine virtuelle

[Christophe Lucas <clucas@xxxxxxxxxxxxx>]

tarek (moktari@xxxxxxxx) wrote:
> bonjour a tous,  
> 
>    voila j'ai un probleme avec xen..
>    J'ai suivi a la lettre les instructions de la
> documentation pour l'install, mais je n'arrive
> toujours pas a demmarer de machine virtuelle..
> 
> je m'explique:
> 
>   1) j'ai installer une fedora 4 et xen dessus...
>   2) ensuite j'ai créer une image que j'ai compresser
> 
>  dd if=/dev/zero of=fedora.img bs=1k seek=2048k
> count=1
> 
>   3) gzip fedora.img
>       --> fedora.img.gz
> 
>   4) mke2fs -F -j fedora.img.gz
> 
>   5) mount -o loop fedora.img.gz /mnt
> 
> 6)cp -ax /{root,dev,etc,var,usr,bin,sbin,boot,lib}
> /mnt
> 
> 7) mkdir /mnt/{proc,sys,home,tmp}
> 
> 8) umount /mnt
> 
> xm create -c rawhide (rawhide qui est mon fichier dans
> lequel j'ai configuer disk etc...)
> 
> et voici les message d'erreur au demarrage:
> 
> xm create -c rawhide
> 
> # xm create -c rawhide
> 
> Using config file "/etc/xen/rawhide".
> Started domain rawhide
> Linux version 2.6.12-1.1447_FC4xenU
> (bhcompile@xxxxxxxxxxxxxxxxxxxxxxxxxx) (gcc version
> 4.0.1 20050727 (Red Hat 4.0.1-5)) #1 SMP Fri Aug 26
> 21:25:28 EDT 2005
> BIOS-provided physical RAM map:
> Xen: 0000000000000000 - 0000000004000000 (usable)
> 64MB LOWMEM available.
> Using x86 segment limits to approximate NX protection
> DMI not present.
> IRQ lockup detection disabled
> Allocating PCI resources starting at 04000000 (gap:
> 04000000:fc000000)
> Built 1 zonelists
> Kernel command line:  root=/dev/sda1 ro selinux=0 3

Pourquoi ?

> Initializing CPU#0
> PID hash table entries: 512 (order: 9, 8192 bytes)
> Xen reported: 2392.028 MHz processor.
> Dentry cache hash table entries: 16384 (order: 4,
> 65536 bytes)
> Inode-cache hash table entries: 8192 (order: 3, 32768
> bytes)
> vmalloc area: c4800000-fbff5000, maxmem 34000000
> Memory: 60572k/65536k available (1839k kernel code,
> 4812k reserved, 512k data, 156k init, 0k highmem)
> Checking if this processor honours the WP bit even in
> [...]
> VFS: Mounted root (ext3 filesystem) readonly.
> Freeing unused kernel memory: 156k freed
> modprobe: FATAL: Could not load
> /lib/modules/2.6.12-1.1447_FC4xenU/modules.dep: No
> such file or directory
> 
> modprobe: FATAL: Could not load
> /lib/modules/2.6.12-1.1447_FC4xenU/modules.dep: No
> such file or directory

Là il manque les modules pour le noyau de domaine User.

> INIT: version 2.85 booting
>                 Welcome to Fedora Core
>                 Press 'I' to enter interactive
> startup.
> Starting udev:  [FAILED]
> Initializing hardware...  storage network audio done[ 
> OK  ]
> Setting clock  (localtime): Fri Sep 23 11:09:11 CEST
> 2005 [  OK  ]
> Setting hostname localhost.localdomain:  [  OK  ]
> 
>  
> ***************************************************************
>  
> ***************************************************************
> WARNING: Currently emulating unsupported memory
> accesses in /lib/tls libraries. The emulation is very 
>    slow. To ensure full performance you should   
> execute the following as root: 
> mv /lib/tls /lib/tls.disabled              
> Offending process: nash (pid=130)                     

http://www.cl.cam.ac.uk/Research/SRG/netos/xen/readmes/user/user.html#SECTION02210000000000000000
Section 2.4.3

>    
>  
> ***************************************************************
>  
> ***************************************************************
> 
> Checking filesystems
> Checking all file systems.
> [/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a
> /dev/VolGroup00/LogVol00
> fsck.ext3: No such file or directory while trying to
> open /dev/VolGroup00/LogVol00
> /dev/VolGroup00/LogVol00:
> The superblock could not be read or does not describe
> a correct ext2
> filesystem.  If the device is valid and it really
> contains an ext2
> filesystem (and not swap or ufs or something else),
> then the superblock
> is corrupt, and you might try running e2fsck with an
> alternate superblock:
>     e2fsck -b 8193 <device>
> 

Là bizarre, tu n'as pas dû tout copier correctement.

> [FAILED]
> 
> *** An error occurred during the file system check.
> *** Dropping you to a shell; the system will reboot
> *** when you leave the shell.
> Give root password for maintenance
> (or type Control-D to continue):
> 
> merci de votre aide car je pense que j'y suis presque
> a demarrer un instance xen mais reste ces derniere
> difficulté..
> 
> Merci a vous

                                - Christophe (clucas@xxxxxxxxxxxxx)


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