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vendredi 30 décembre 2011
Par david techer, vendredi 30 décembre 2011 à 13:30 :: Général
dimanche 25 décembre 2011
Par david techer, dimanche 25 décembre 2011 à 02:36 :: Xen
I asked myself if it could be possible to use
The answer is yes! I went on [1]. I was a little confused by the idea that it could very easy to do.
I spent a lof of time trying to resolve several issues 
(...) But all issues are fixed now .
root@mercury-xen01:~# dmesg | egrep -i 'xen|blk' [ 0.000000] Linux version 3.1.6 (root@mercury-xen01) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) ) #1 SMP Sun Dec 25 01:26:07 CET 2011 [ 0.000000] DMI: Xen HVM domU, BIOS 4.2-unstable 12/22/2011 [ 0.000000] Hypervisor detected: Xen HVM [ 0.000000] Xen version 4.2. [ 0.000000] Xen Platform PCI: I/O protocol version 1 [ 0.000000] Netfront and the Xen platform PCI driver have been compiled for this kernel: unplug emulated NICs. [ 0.000000] Blkfront and the Xen platform PCI driver have been compiled for this kernel: unplug emulated disks. [ 0.000000] ACPI: RSDP 00000000000ea020 00024 (v02 Xen) [ 0.000000] ACPI: XSDT 00000000fc00f680 00054 (v01 Xen HVM 00000000 HVML 00000000) [ 0.000000] ACPI: FACP 00000000fc00f340 000F4 (v04 Xen HVM 00000000 HVML 00000000) [ 0.000000] ACPI: DSDT 00000000fc003600 0BCBC (v02 Xen HVM 00000000 INTL 20100528) [ 0.000000] ACPI: APIC 00000000fc00f440 000D8 (v02 Xen HVM 00000000 HVML 00000000) [ 0.000000] ACPI: HPET 00000000fc00f590 00038 (v01 Xen HVM 00000000 HVML 00000000) [ 0.000000] ACPI: WAET 00000000fc00f5d0 00028 (v01 Xen HVM 00000000 HVML 00000000) [ 0.000000] ACPI: SSDT 00000000fc00f600 00031 (v02 Xen HVM 00000000 INTL 20100528) [ 0.000000] ACPI: SSDT 00000000fc00f640 00031 (v02 Xen HVM 00000000 INTL 20100528) [ 0.000000] Booting paravirtualized kernel on Xen HVM [ 0.000000] Xen HVM callback vector for event delivery is enabled [ 0.135090] Xen: using vcpuop timer interface [ 0.135094] installing Xen timer for CPU 0 [ 0.300043] installing Xen timer for CPU 1 [ 0.470043] installing Xen timer for CPU 2 [ 0.640040] installing Xen timer for CPU 3 [ 1.031644] xen/balloon: Initialising balloon driver. [ 1.031654] xen-balloon: Initialising balloon driver. [ 1.050023] Switching to clocksource xen [ 1.051618] xen: --> pirq=19 -> irq=8 (gsi=8) [ 1.051659] xen: --> pirq=20 -> irq=12 (gsi=12) [ 1.051689] xen: --> pirq=21 -> irq=1 (gsi=1) [ 1.051720] xen: --> pirq=22 -> irq=6 (gsi=6) [ 1.051753] xen: --> pirq=23 -> irq=4 (gsi=4) [ 1.051791] xen: --> pirq=54 -> irq=7 (gsi=7) [ 2.061962] QLogic/NetXen Network Driver v4.0.76 [ 2.062183] xen: --> pirq=17 -> irq=17 (gsi=17) [ 2.090348] xen: --> pirq=18 -> irq=21 (gsi=21) [ 2.260133] xen: --> pirq=53 -> irq=28 (gsi=28) [ 2.260136] xen-platform-pci 0000:00:03.0: PCI INT A -> GSI 28 (level, low) -> IRQ 28 [ 2.266953] input: Xen Virtual Keyboard as /devices/virtual/input/input3 [ 2.267012] input: Xen Virtual Pointer as /devices/virtual/input/input4 [ 2.269131] Initialising Xen virtual ethernet driver. [ 2.281965] blkfront: xvda: flush diskcache: enabled [ 2.282796] vbd vbd-51744: 19 xenbus_dev_probe on device/vbd/51744 [ 2.283048] vbd vbd-51744: failed to write error node for device/vbd/51744 (19 xenbus_dev_probe on device/vbd/51744) [ 7.515418] xen: --> pirq=55 -> irq=44 (gsi=44) [ 8.328334] xen: --> pirq=52 -> irq=40 (gsi=40) [ 8.488638] xen: --> pirq=51 -> irq=36 (gsi=36)
wget http://www.kernel.org/pub/linux/kernel/v3.0/linux-3.1.6.tar.bz2 tar xjf linux-3.1.6.tar.bz2 cd linux-3.1.6
make menuconfigThe most important is to be sure to have the same following configuration. Be sure to have CONFIG_XEN_PLATFORM_PCI compile as a module (=m).
root@mercury-xen01:/usr/src/linux-3.1.6# grep -i xen .config CONFIG_XEN=y CONFIG_XEN_DOM0=y CONFIG_XEN_PRIVILEGED_GUEST=y CONFIG_XEN_PVHVM=y CONFIG_XEN_MAX_DOMAIN_MEMORY=128 CONFIG_XEN_SAVE_RESTORE=y CONFIG_XEN_DEBUG_FS=y CONFIG_XEN_DEBUG=y CONFIG_PCI_XEN=y CONFIG_XEN_PCIDEV_FRONTEND=m CONFIG_XEN_BLKDEV_FRONTEND=m # CONFIG_XEN_BLKDEV_BACKEND is not set CONFIG_NETXEN_NIC=y CONFIG_XEN_NETDEV_FRONTEND=m CONFIG_XEN_NETDEV_BACKEND=m CONFIG_INPUT_XEN_KBDDEV_FRONTEND=y CONFIG_HVC_XEN=y # CONFIG_XEN_WDT is not set CONFIG_XEN_FBDEV_FRONTEND=y # Xen driver support CONFIG_XEN_BALLOON=y CONFIG_XEN_SCRUB_PAGES=y CONFIG_XEN_DEV_EVTCHN=y CONFIG_XEN_BACKEND=y CONFIG_XENFS=y CONFIG_XEN_COMPAT_XENFS=y CONFIG_XEN_SYS_HYPERVISOR=y CONFIG_XEN_XENBUS_FRONTEND=y CONFIG_XEN_GNTDEV=m CONFIG_XEN_GRANT_DEV_ALLOC=m CONFIG_XEN_PLATFORM_PCI=m CONFIG_SWIOTLB_XEN=y CONFIG_XEN_PCIDEV_BACKEND=mNotice: you can download my own configuration here
make -j4 bzImage modules make install modules_install
/etc/initramfs-tools/modules
root@mercury-xen01:~# cat /etc/initramfs-tools/modules # List of modules that you want to include in your initramfs. # # Syntax: module_name [args ...] # # You must run update-initramfs(8) to effect this change. # # Examples: # # raid1 # sd_mod xen-platform-pci xen-blkfront xen-netfront
mkinitramfs -o /boot/initrd.img-3.1.6 3.1.6
/etc/default/grub
root@mercury-xen01:~# cat /etc/default/grub # If you change this file, run 'update-grub' afterwards to update # /boot/grub/grub.cfg. GRUB_DEFAULT=0 GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=120 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="loglevel=9 rootdelay=120 quiet splash" GRUB_CMDLINE_LINUX="" # Uncomment to disable graphical terminal (grub-pc only) #GRUB_TERMINAL=console # The resolution used on graphical terminal # note that you can use only modes which your graphic card supports via VBE # you can see them in real GRUB with the command `vbeinfo' #GRUB_GFXMODE=640x480 # Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux GRUB_DISABLE_LINUX_UUID=true # Uncomment to disable generation of recovery mode menu entries #GRUB_DISABLE_LINUX_RECOVERY="true" # Uncomment to get a beep at grub start #GRUB_INIT_TUNE="480 440 1"
root@mercury-xen01:~# update-grub Generating grub.cfg ... Found linux image: /boot/vmlinuz-3.1.6 Found initrd image: /boot/initrd.img-3.1.6 ....
boot/grub/grub.cfg. We need to replace the line root=/dev/sda1 by root=/dev/xvda1
...
....
### BEGIN /etc/grub.d/10_linux ###
menuentry 'Ubuntu, avec Linux 3.1.6' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,1)'
search --no-floppy --fs-uuid --set b199c136-7ea3-4244-b51a-9adfd52ea892
linux /boot/vmlinuz-3.1.6 root=/dev/xvda1 ro loglevel=9 rootdelay=120 quiet splash
initrd /boot/initrd.img-3.1.6
}
hdX to xvdX. For example, here the content of my configuration file
root@mercury:~# grep -vE '^(#|$)' /etc/xen/machines/mercury-xen01.cfg
builder='hvm'
shadow_memory = 128
name = "mercury-xen01"
memory = '3072'
vcpus = '4'
disk = [
'phy:/dev/xenvg/mercury-xen01-disk-1,xvda,w',
'file:/opt/Xen/CD_DVD/Quake_III_Arena.iso,xvdc:cdrom,r',
]
boot="cd"
name = 'mercury-xen01'
vif = [ 'mac=00:16:3E:B7:05:58,bridge=eth0,model=e1000' ]
on_poweroff = 'destroy'
on_reboot = 'restart'
on_crash = 'restart'
sdl=0
vnc=1
vnclisten="0.0.0.0"
vncconsole=1
vncpasswd=''
gfx_passthru=1
pci = [ '01:00.0','00:1a.0','00:1d.0' ]
acpi=1
apic=1
xen_extended_power_mgmt=1
pae=1
arch='x86_64'
hpet = 1
hap = 1
monitor=1
serial='pty'
keymap='fr'
soundhw = "all"
audio="on"
xen_platform_pci=1
(*) For a unknown reason 
, after several reboots, you can put hd[a-] instead of xvd[a-d]
apt-get remove --purge hal apt-get install hal apt-get install halevt
gnome-volume-manager is not available on Ubuntu Lucid 10.4.3 so I replace it by halevt samedi 24 décembre 2011
Par david techer, samedi 24 décembre 2011 à 23:17 :: Général
Tonight it's Christmas! As far as I remembered while I was listening Relax - done by Mika -, my mind went out(...) To my family, to my friends, I was thinking a couple hours ago! At 06:00 PM, I went to the church - not away from where I live -. I dedicated a prayer to my famlily and my friends. I called my family (Reunion Island) in Indian Ocean. I was very glad to listen my mother and my sister on phone. Dad was a little tired. Happy I was to call with him 
even if I was not with them.
Last night and tonight, I called my friends for Christmas. I was happy to have one of my friends - on phone -. I was a little stressed about what happened to her. For each Chritsmas, knowing that person I know thinks about you is all I need.
For the 4 pasted years, several chapters of my life were done
2011 was a very surprising year. Well it was a very good year. Hope for 2012
mercredi 21 décembre 2011
Par david techer, mercredi 21 décembre 2011 à 12:27 :: Linux
less sur un fichier, cette chaîne apparaît en début de fichier
<U+FEFF>..... ...... ........ ......... .........Pour la supprimer
sed -i '1 s:\xEF\xBB\xBF::' fileSource: http://thegreyblog.blogspot.com/2010/09/shell-script-to-find-and-remove-bom.html