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1 | ******************************************************** |
2 | Recipe for getting/building/running Xen/ia64 with pv_ops | |
3 | ******************************************************** | |
4 | This recipe describes how to get xen-ia64 source and build it, | |
5 | and run domU with pv_ops. | |
6 | ||
7 | Requirements | |
8 | ============ | |
9 | ||
10 | - python | |
11 | - mercurial | |
12 | it (aka "hg") is an open-source source code | |
13 | management software. See the below. | |
14 | http://www.selenic.com/mercurial/wiki/ | |
15 | - git | |
16 | - bridge-utils | |
17 | ||
18 | Getting and Building Xen and Dom0 | |
19 | ================================= | |
20 | ||
21 | My environment is: | |
22 | ||
23 | - Machine : Tiger4 | |
24 | - Domain0 OS : RHEL5 | |
25 | - DomainU OS : RHEL5 | |
26 | ||
27 | 1. Download source:: | |
28 | ||
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 | ||
39 | # cp xen/xen.gz /boot/efi/efi/redhat/ | |
40 | # cp build-linux-2.6.18-xen_ia64/vmlinux.gz \ | |
41 | /boot/efi/efi/redhat/vmlinuz-2.6.18.8-xen | |
42 | ||
43 | 5. make initrd for Dom0/DomU:: | |
44 | ||
45 | # make -C linux-2.6.18-xen.hg ARCH=ia64 modules_install \ | |
46 | O=$(pwd)/build-linux-2.6.18-xen_ia64 | |
47 | # mkinitrd -f /boot/efi/efi/redhat/initrd-2.6.18.8-xen.img \ | |
48 | 2.6.18.8-xen --builtin mptspi --builtin mptbase \ | |
49 | --builtin mptscsih --builtin uhci-hcd --builtin ohci-hcd \ | |
50 | --builtin ehci-hcd | |
51 | ||
52 | Making a disk image for guest OS | |
53 | ================================ | |
54 | ||
55 | 1. make file:: | |
56 | ||
57 | # dd if=/dev/zero of=/root/rhel5.img bs=1M seek=4096 count=0 | |
58 | # mke2fs -F -j /root/rhel5.img | |
59 | # mount -o loop /root/rhel5.img /mnt | |
60 | # cp -ax /{dev,var,etc,usr,bin,sbin,lib} /mnt | |
61 | # mkdir /mnt/{root,proc,sys,home,tmp} | |
62 | ||
63 | Note: You may miss some device files. If so, please create them | |
64 | with mknod. Or you can use tar instead of cp. | |
65 | ||
66 | 2. modify DomU's fstab:: | |
67 | ||
68 | # vi /mnt/etc/fstab | |
69 | /dev/xvda1 / ext3 defaults 1 1 | |
70 | none /dev/pts devpts gid=5,mode=620 0 0 | |
71 | none /dev/shm tmpfs defaults 0 0 | |
72 | none /proc proc defaults 0 0 | |
73 | none /sys sysfs defaults 0 0 | |
74 | ||
75 | 3. modify inittab | |
76 | ||
77 | set runlevel to 3 to avoid X trying to start:: | |
78 | ||
79 | # vi /mnt/etc/inittab | |
80 | id:3:initdefault: | |
81 | ||
82 | Start a getty on the hvc0 console:: | |
83 | ||
84 | X0:2345:respawn:/sbin/mingetty hvc0 | |
85 | ||
86 | tty1-6 mingetty can be commented out | |
87 | ||
88 | 4. add hvc0 into /etc/securetty:: | |
89 | ||
90 | # vi /mnt/etc/securetty (add hvc0) | |
91 | ||
92 | 5. umount:: | |
93 | ||
94 | # umount /mnt | |
95 | ||
96 | FYI, virt-manager can also make a disk image for guest OS. | |
97 | It's GUI tools and easy to make it. | |
98 | ||
99 | Boot Xen & Domain0 | |
100 | ================== | |
101 | ||
102 | 1. replace elilo | |
103 | elilo of RHEL5 can boot Xen and Dom0. | |
104 | If you use old elilo (e.g RHEL4), please download from the below | |
105 | http://elilo.sourceforge.net/cgi-bin/blosxom | |
106 | and copy into /boot/efi/efi/redhat/:: | |
107 | ||
108 | # cp elilo-3.6-ia64.efi /boot/efi/efi/redhat/elilo.efi | |
109 | ||
110 | 2. modify elilo.conf (like the below):: | |
111 | ||
112 | # vi /boot/efi/efi/redhat/elilo.conf | |
113 | prompt | |
114 | timeout=20 | |
115 | default=xen | |
116 | relocatable | |
117 | ||
118 | image=vmlinuz-2.6.18.8-xen | |
119 | label=xen | |
120 | vmm=xen.gz | |
121 | initrd=initrd-2.6.18.8-xen.img | |
122 | read-only | |
123 | append=" -- rhgb root=/dev/sda2" | |
124 | ||
125 | The append options before "--" are for xen hypervisor, | |
126 | the options after "--" are for dom0. | |
127 | ||
128 | FYI, your machine may need console options like | |
129 | "com1=19200,8n1 console=vga,com1". For example, | |
130 | append="com1=19200,8n1 console=vga,com1 -- rhgb console=tty0 \ | |
131 | console=ttyS0 root=/dev/sda2" | |
132 | ||
133 | Getting and Building domU with pv_ops | |
134 | ===================================== | |
135 | ||
136 | 1. get pv_ops tree:: | |
137 | ||
138 | # git clone http://people.valinux.co.jp/~yamahata/xen-ia64/linux-2.6-xen-ia64.git/ | |
139 | ||
140 | 2. git branch (if necessary):: | |
141 | ||
142 | # cd linux-2.6-xen-ia64/ | |
143 | # git checkout -b your_branch origin/xen-ia64-domu-minimal-2008may19 | |
144 | ||
145 | Note: | |
146 | The current branch is xen-ia64-domu-minimal-2008may19. | |
147 | But you would find the new branch. You can see with | |
148 | "git branch -r" to get the branch lists. | |
149 | ||
150 | http://people.valinux.co.jp/~yamahata/xen-ia64/for_eagl/linux-2.6-ia64-pv-ops.git/ | |
151 | ||
152 | is also available. | |
153 | ||
154 | The tree is based on | |
155 | ||
156 | git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 test) | |
157 | ||
158 | 3. copy .config for pv_ops of domU:: | |
159 | ||
160 | # cp arch/ia64/configs/xen_domu_wip_defconfig .config | |
161 | ||
162 | 4. make kernel with pv_ops:: | |
163 | ||
164 | # make oldconfig | |
165 | # make | |
166 | ||
167 | 5. install the kernel and initrd:: | |
168 | ||
169 | # cp vmlinux.gz /boot/efi/efi/redhat/vmlinuz-2.6-pv_ops-xenU | |
170 | # make modules_install | |
171 | # mkinitrd -f /boot/efi/efi/redhat/initrd-2.6-pv_ops-xenU.img \ | |
172 | 2.6.26-rc3xen-ia64-08941-g1b12161 --builtin mptspi \ | |
173 | --builtin mptbase --builtin mptscsih --builtin uhci-hcd \ | |
174 | --builtin ohci-hcd --builtin ehci-hcd | |
175 | ||
176 | Boot DomainU with pv_ops | |
177 | ======================== | |
178 | ||
179 | 1. make config of DomU:: | |
180 | ||
181 | # vi /etc/xen/rhel5 | |
182 | kernel = "/boot/efi/efi/redhat/vmlinuz-2.6-pv_ops-xenU" | |
183 | ramdisk = "/boot/efi/efi/redhat/initrd-2.6-pv_ops-xenU.img" | |
184 | vcpus = 1 | |
185 | memory = 512 | |
186 | name = "rhel5" | |
187 | disk = [ 'file:/root/rhel5.img,xvda1,w' ] | |
188 | root = "/dev/xvda1 ro" | |
189 | extra= "rhgb console=hvc0" | |
190 | ||
191 | 2. After boot xen and dom0, start xend:: | |
192 | ||
193 | # /etc/init.d/xend start | |
194 | ||
195 | ( In the debugging case, `# XEND_DEBUG=1 xend trace_start` ) | |
196 | ||
197 | 3. start domU:: | |
198 | ||
199 | # xm create -c rhel5 | |
200 | ||
201 | Reference | |
202 | ========= | |
203 | - Wiki of Xen/IA64 upstream merge | |
204 | http://wiki.xensource.com/xenwiki/XenIA64/UpstreamMerge | |
205 | ||
206 | Written by Akio Takebe <takebe_akio@jp.fujitsu.com> on 28 May 2008 |