Re: [Xen-users] Xen in RHEL 5.0...Installation problems

[Dushmant Mohapatra <d_mpatra@xxxxxxxxx>]

yes ..I rebooted to the xen-kernel ..
 
 I have also tried running mkinitrd to create another init image etc..
 
 I am not sure what is going wrong.
 
 

James Wilson <jwilson@xxxxxxxxxxxxxxxxx> wrote:

Did you reboot to the xen-kernel?

Dushmant Mohapatra wrote:
> Hello..I am not very proficient in Linux kernel
>
> stuffs although I know my basics. I have a question and all
> suggestions/solutions will be highly appreciated...
>
> I got to know that RHEL 5 has inbuilt Xen Support...So I tried to
> install a RHEL 5.0 Server
> on
> my P4 machine. On top of it I tried to install Xen specific RPMs and
> some other RPMs needed by Xen.
>
> The additinal RPMs added after base RHEL 5.0 installation are :
>
>
> bridge-utils-1.1.2.i386.rpm
> iproute-2.6.18-4.el5.i386.rpm
> kernel-xen-2.6.18-8.el5.i686.rpm
> kernel-xen-devel-2.6.18-8.el5.i686.prm
> udev-095-14.5.el5.i386.rpm
>
>
> After all this the grub.conf gets modified automatically and looks
> 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/VolGroup00/LogVol00
> # initrd /initrd-version.img
> #boot=/dev/hda
> default=0
> timeout=5
> splashimage=(hd0,0)/grub/splash.xpm.gz
> #hiddenmenu
> title Red Hat Enterprise Linux Server (2.6.18-8.el5xen)
> root (hd0,0)
> kernel /xen.gz-2.6.18-8.el5
> module /vmlinuz-2.6.18-8.el5xen ro root=/dev/VolGroup00/LogVol00 rhgb
> quiet
> module /initrd-2.6.18-8.el5xen.img
>
> title Red Hat Enterprise Linux
>
> Server (2.6.18-8.el5)
> root (hd0,0)
> kernel /vmlinuz-2.6.18-8.el5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet
> initrd /initrd-2.6.18-8.el5.img
>
>
>
> After all this I am ready to boot properly into Xen Specific Linux
> and
> the original RHEL . But there is no /etc/xen directory and nor are the
> tools like xend and xm available.
>
> So I am not sure if I am missing some other RPMS that need to be
> installed??
>
>
> On not being able to get it done this way I tried to erase the xen
> specific RPMs
> kernel-xen-2.6.18-8.el5.i686.rpm
> kernel-xen-devel-2.6.18-8.el5.i686.prm
>
> and installed the RPMs obtained from Xen Source site (for RHEL 5). The
> RPMs installed are :
> kernel-xen-2.6.18-3.1.0.i386.rpm
> xen-devel-3.1.0-1.i386.rpm
> xen-3.1.0-1.src.rpm
> xen-3.1.0-1.i386.rpm
>
>
>
> By doing this I see that /etc/xen directory has been created and I can
> see the tools xend,xm...
>
> But after modifying the grub.conf and trying to boot into Xen I get
> kernel panic.
>
> The grub.conf after modification is :
>
> # 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/VolGroup00/LogVol00
> # initrd /initrd-version.img
> #boot=/dev/hda
> default=0
> timeout=5
> splashimage=(hd0,0)/grub/splash.xpm.gz
> #hiddenmenu
> title Red Hat Enterprise Linux Server - XEN ENABLED
> root (hd0,0)
> kernel /xen-3.1.0.gz noreboot
> module /vmlinuz-2.6.18-xen_3.1.0 ro root=/dev/VolGroup00/LogVol00
> module /initrd-2.6.18-xen_3.1.0.img
>
> title Red Hat Enterprise Linux Server (2.6.18-8.el5)
> root (hd0,0)
> kernel /vmlinuz-2.6.18-8.el5 ro root=/dev/VolGroup00/LogVol00 rhgb
> quiet
> initrd /initrd-2.6.18-8.el5.img
>
>
>
>
> Some of the kernel panic messages are like:
> Reading all physical volumes.
> No volume groups found
> Volume Group "Vol Group00" not found.
> Mount: could not find file system /dev/root
> setuproot: moving /dev failed. No such file or directory
> .
> .
> end-request:I/O error, dev fd0, sector 0
>
>
>
>
>
> I am including here some details of my configurations:
>
> [root@dyn-9-1-75-65 ~]# cat /etc/fstab
> /dev/VolGroup00/LogVol00 / ext3
> defaults 1 1
> LABEL=/boot /boot ext3
> defaults 1 2
> devpts /dev/pts devpts
> gid=5,mode=620 0 0
> tmpfs /dev/shm tmpfs
> defaults 0 0
> proc /proc proc
> defaults 0 0
> sysfs /sys sysfs
> defaults 0 0
> /dev/VolGroup00/LogVol01 swap swap
> defaults 0 0
>
>
> [root@dyn-9-1-75-65 ~]# cat /proc/partitions
> major minor #blocks name
>
> 3 0 39078144 hda
> 3 1 104391 hda1
> 3 2 38973690 hda2
> 253 0 37945344 dm-0
> 253 1 1015808 dm-1
>
>
>
>
> [root@dyn-9-1-75-65 ~]# fdisk -l
>
> Disk /dev/hda: 40.0 GB, 40016019456 bytes
> 255 heads, 63 sectors/track, 4865 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
>
> Device Boot Start End Blocks Id System
> /dev/hda1 * 1 13 104391 83 Linux
> /dev/hda2 14 4865 38973690 8e Linux LVM
>
>
>
> [root@dyn-9-1-75-65 ~]# parted
> GNU Parted 1.8.1
> Using /dev/hda
> Welcome to GNU Parted! Type 'help' to view a list of commands.
> (parted) print
>
> Model: IC35L040AVVN07-0 (ide)
> Disk /dev/hda: 40.0GB
> Sector size (logical/physical): 512B/512B
> Partition Table: msdos
>
> Number Start End Size Type File system Flags
> 1 32.3kB 107MB 107MB primary ext3 boot
> 2 107MB 40.0GB 39.9GB primary lvm
>
>
>
>
> [root@dyn-9-1-75-65 ~]# lvm
> lvm> pvdisplay
> --- Physical volume ---
> PV Name /dev/hda2
> VG Name VolGroup00
> PV Size 37.17 GB / not usable 12.24 MB
> Allocatable yes (but full)
> PE Size (KByte) 32768
> Total PE 1189
> Free PE 0
> Allocated PE 1189
> PV UUID 1xh1p6-cC8T-cocr-iyY2-Ta9x-KrOY-Io79SL
>
> lvm> lvdisplay
> --- Logical volume ---
> LV Name /dev/VolGroup00/LogVol00
> VG Name VolGroup00
> LV UUID KgakUg-SYE9-6Vn2-3Iks-3Wbo-ENYt-r2UDzE
> LV Write Access read/write
> LV Status available
> # open 1
> LV Size 36.19 GB
> Current LE 1158
> Segments 1
> Allocation inherit
> Read ahead sectors 0
> Block device 253:0
>
> --- Logical volume ---
> LV Name /dev/VolGroup00/LogVol01
> VG Name VolGroup00
> LV UUID 6avXTk-0DYK-JHRc-bh56-4w68-eBJg-kAVw4s
> LV Write Access read/write
> LV Status available
> # open 1
> LV Size 992.00 MB
> Current LE 31
> Segments 1
> Allocation inherit
> Read ahead sectors 0
> Block device 253:1
>
>
>
>
> Can any one pls suggest where I went wrong?
>
> Thanks in advance
> Dushmanta
>
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