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1 | Recipe for getting/building/running Xen/ia64 with pv_ops |
2 | -------------------------------------------------------- | |
3 | ||
4 | This recipe describes how to get xen-ia64 source and build it, | |
5 | and run domU with pv_ops. | |
6 | ||
7 | ============ | |
8 | Requirements | |
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 | ================================= | |
20 | Getting 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 | ================================ | |
51 | Making 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 | ||
86 | FYI, virt-manager can also make a disk image for guest OS. | |
87 | It's GUI tools and easy to make it. | |
88 | ||
89 | ================== | |
90 | Boot 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 | ||
114 | The append options before "--" are for xen hypervisor, | |
115 | the options after "--" are for dom0. | |
116 | ||
117 | FYI, your machine may need console options like | |
118 | "com1=19200,8n1 console=vga,com1". For example, | |
119 | append="com1=19200,8n1 console=vga,com1 -- rhgb console=tty0 \ | |
120 | console=ttyS0 root=/dev/sda2" | |
121 | ||
122 | ===================================== | |
123 | Getting 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 | ======================== | |
156 | Boot 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 | ========= | |
178 | Reference | |
179 | ========= | |
180 | - Wiki of Xen/IA64 upstream merge | |
181 | http://wiki.xensource.com/xenwiki/XenIA64/UpstreamMerge | |
182 | ||
183 | Written by Akio Takebe <takebe_akio@jp.fujitsu.com> on 28 May 2008 |