1 Recipe for getting/building/running Xen/ia64 with pv_ops 2 -------------------------------------------------------- 3 4This recipe describes how to get xen-ia64 source and build it, 5and run domU with pv_ops. 6 7============ 8Requirements 9============ 10 11 - python 12 - mercurial 13 it (aka "hg") is an open-source source code 14 management software. See the below. 15 http://www.selenic.com/mercurial/wiki/ 16 - git 17 - bridge-utils 18 19================================= 20Getting and Building Xen and Dom0 21================================= 22 23 My environment is; 24 Machine : Tiger4 25 Domain0 OS : RHEL5 26 DomainU OS : RHEL5 27 28 1. Download source 29 # hg clone http://xenbits.xensource.com/ext/ia64/xen-unstable.hg 30 # cd xen-unstable.hg 31 # hg clone http://xenbits.xensource.com/ext/ia64/linux-2.6.18-xen.hg 32 33 2. # make world 34 35 3. # make install-tools 36 37 4. copy kernels and xen 38 # cp xen/xen.gz /boot/efi/efi/redhat/ 39 # cp build-linux-2.6.18-xen_ia64/vmlinux.gz \ 40 /boot/efi/efi/redhat/vmlinuz-2.6.18.8-xen 41 42 5. make initrd for Dom0/DomU 43 # make -C linux-2.6.18-xen.hg ARCH=ia64 modules_install \ 44 O=$(/bin/pwd)/build-linux-2.6.18-xen_ia64 45 # mkinitrd -f /boot/efi/efi/redhat/initrd-2.6.18.8-xen.img \ 46 2.6.18.8-xen --builtin mptspi --builtin mptbase \ 47 --builtin mptscsih --builtin uhci-hcd --builtin ohci-hcd \ 48 --builtin ehci-hcd 49 50================================ 51Making a disk image for guest OS 52================================ 53 54 1. make file 55 # dd if=/dev/zero of=/root/rhel5.img bs=1M seek=4096 count=0 56 # mke2fs -F -j /root/rhel5.img 57 # mount -o loop /root/rhel5.img /mnt 58 # cp -ax /{dev,var,etc,usr,bin,sbin,lib} /mnt 59 # mkdir /mnt/{root,proc,sys,home,tmp} 60 61 Note: You may miss some device files. If so, please create them 62 with mknod. Or you can use tar instead of cp. 63 64 2. modify DomU's fstab 65 # vi /mnt/etc/fstab 66 /dev/xvda1 / ext3 defaults 1 1 67 none /dev/pts devpts gid=5,mode=620 0 0 68 none /dev/shm tmpfs defaults 0 0 69 none /proc proc defaults 0 0 70 none /sys sysfs defaults 0 0 71 72 3. modify inittab 73 set runlevel to 3 to avoid X trying to start 74 # vi /mnt/etc/inittab 75 id:3:initdefault: 76 Start a getty on the hvc0 console 77 X0:2345:respawn:/sbin/mingetty hvc0 78 tty1-6 mingetty can be commented out 79 80 4. add hvc0 into /etc/securetty 81 # vi /mnt/etc/securetty (add hvc0) 82 83 5. umount 84 # umount /mnt 85 86FYI, virt-manager can also make a disk image for guest OS. 87It's GUI tools and easy to make it. 88 89================== 90Boot Xen & Domain0 91================== 92 93 1. replace elilo 94 elilo of RHEL5 can boot Xen and Dom0. 95 If you use old elilo (e.g RHEL4), please download from the below 96 http://elilo.sourceforge.net/cgi-bin/blosxom 97 and copy into /boot/efi/efi/redhat/ 98 # cp elilo-3.6-ia64.efi /boot/efi/efi/redhat/elilo.efi 99 100 2. modify elilo.conf (like the below) 101 # vi /boot/efi/efi/redhat/elilo.conf 102 prompt 103 timeout=20 104 default=xen 105 relocatable 106 107 image=vmlinuz-2.6.18.8-xen 108 label=xen 109 vmm=xen.gz 110 initrd=initrd-2.6.18.8-xen.img 111 read-only 112 append=" -- rhgb root=/dev/sda2" 113 114The append options before "--" are for xen hypervisor, 115the options after "--" are for dom0. 116 117FYI, your machine may need console options like 118"com1=19200,8n1 console=vga,com1". For example, 119append="com1=19200,8n1 console=vga,com1 -- rhgb console=tty0 \ 120console=ttyS0 root=/dev/sda2" 121 122===================================== 123Getting and Building domU with pv_ops 124===================================== 125 126 1. get pv_ops tree 127 # git clone http://people.valinux.co.jp/~yamahata/xen-ia64/linux-2.6-xen-ia64.git/ 128 129 2. git branch (if necessary) 130 # cd linux-2.6-xen-ia64/ 131 # git checkout -b your_branch origin/xen-ia64-domu-minimal-2008may19 132 (Note: The current branch is xen-ia64-domu-minimal-2008may19. 133 But you would find the new branch. You can see with 134 "git branch -r" to get the branch lists. 135 http://people.valinux.co.jp/~yamahata/xen-ia64/for_eagl/linux-2.6-ia64-pv-ops.git/ 136 is also available. The tree is based on 137 git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 test) 138 139 140 3. copy .config for pv_ops of domU 141 # cp arch/ia64/configs/xen_domu_wip_defconfig .config 142 143 4. make kernel with pv_ops 144 # make oldconfig 145 # make 146 147 5. install the kernel and initrd 148 # cp vmlinux.gz /boot/efi/efi/redhat/vmlinuz-2.6-pv_ops-xenU 149 # make modules_install 150 # mkinitrd -f /boot/efi/efi/redhat/initrd-2.6-pv_ops-xenU.img \ 151 2.6.26-rc3xen-ia64-08941-g1b12161 --builtin mptspi \ 152 --builtin mptbase --builtin mptscsih --builtin uhci-hcd \ 153 --builtin ohci-hcd --builtin ehci-hcd 154 155======================== 156Boot DomainU with pv_ops 157======================== 158 159 1. make config of DomU 160 # vi /etc/xen/rhel5 161 kernel = "/boot/efi/efi/redhat/vmlinuz-2.6-pv_ops-xenU" 162 ramdisk = "/boot/efi/efi/redhat/initrd-2.6-pv_ops-xenU.img" 163 vcpus = 1 164 memory = 512 165 name = "rhel5" 166 disk = [ 'file:/root/rhel5.img,xvda1,w' ] 167 root = "/dev/xvda1 ro" 168 extra= "rhgb console=hvc0" 169 170 2. After boot xen and dom0, start xend 171 # /etc/init.d/xend start 172 ( In the debugging case, # XEND_DEBUG=1 xend trace_start ) 173 174 3. start domU 175 # xm create -c rhel5 176 177========= 178Reference 179========= 180- Wiki of Xen/IA64 upstream merge 181 http://wiki.xensource.com/xenwiki/XenIA64/UpstreamMerge 182 183Written by Akio Takebe <takebe_akio@jp.fujitsu.com> on 28 May 2008 184