Hello..I am not very proficient in Linux kernel
<http://www.linuxquestions.org/questions/showthread.php?t=561223#>
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
<http://www.linuxquestions.org/questions/showthread.php?t=561223#> 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
<http://www.linuxquestions.org/questions/showthread.php?t=561223#>
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
<http://www.linuxquestions.org/questions/showthread.php?t=561223#> 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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