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发表于 2019-9-28 15:15:53
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1.创建虚拟机映像/ L7 u* C1 X7 l8 L8 `
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dd if=/dev/zero of=xen.img bs=1M count=16000
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4 G$ |: x2 J1 |; \dd if=/dev/zero of=xen2.img bs=1M count=16000
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mkfs -t ext3 xen.img) M* S! d: C! ^0 m
3 d9 H5 Z- d: k ?6 A6 g; Q" amkfs -t ext3 xen2.img
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: l; c4 U2 a$ I: M5 S; ~3 V$ `2 imount -o loop /domU/xen.img /mnt
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) O) R0 u0 i2 t& q5 }. ccp -ax /{bin,dev,etc,lib,lib64,opt,root,sbin,usr,var} /mnt
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mkdir /mnt/{home,proc,selinux,srv,sys,tmp}
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创建swap盘- Z' Y2 c& o, K* l L4 x5 [
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mkswap /slview/swap1.img
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1 Q" g" f8 I3 z1 Evi /mnt/etc/fstab: _! m. f5 ?, X M3 f$ s+ P
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/dev/hda1 / ext3 defaults 1 1
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' @, g0 d$ ]8 @/ B' utmpfs /dev/shm tmpfs defaults,size=1024m 0 0
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devpts /dev/pts devpts gid=5,mode=620 0 0+ ]$ O+ g. i4 V/ C
% R4 d# ]6 G2 U6 c* N" ]1 Asysfs /sys sysfs defaults 0 0
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proc /proc proc defaults 0 05 s1 R+ ~' V1 X0 @, K5 B
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/dev/sdg swap swap defaults 0 0
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---edit network
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vi /mnt/etc/sysconfig/network0 b9 [$ ]0 g9 ^! t% Q) f
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---edit ifcfg-eth0$ U! `) b7 d/ P* G# O
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vi /mnt/etc/sysconfig/network-scripts/ifcfg-eth0
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DEVICE=eth0: T% h; E6 X& ?
BOOTPROTO=static1 |( O( Q" w- {5 ^: [: R
ONBOOT=yes2 b0 P& W; X" r$ b
IPADDR=192.168.24.210) c+ ^% m" P, S
NETMASK=255.255.255.0; {- I+ R! y; K' k( i
NETWORK=192.168.24.0
9 F6 r% s9 c9 y- `( G! bBROADCAST=192.168.24.255% u9 s# Y* S+ }) B, o" u
7 i9 x7 s3 y [% }-----gen initrd$ c; `+ p6 s. F4 ]
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mkinitrd -v -f --fstab /mnt/etc/fstab --with xenblk \% N; b3 J- C0 v. Q# k. K4 Q; T
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--with xennet --preload xenblk --preload xennet \" ~4 g2 T& h" q1 k$ N0 j7 c2 m" L" i' r3 L
* z# s0 s6 ?5 P; K5 g' jinitrd-2.6.18-194.el5xen.wd.img `uname -r`
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( v7 V! K z' t" `6 h0 c+ L C% Fumount /mnt
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---在/etc/inittab
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' W5 a( R0 C4 D! j2 M: O2 t" Mco:2345:respawn:/sbin/agetty xvc0 9600 vt100-nav
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: ?7 @6 f/ y* Z8 t' d>init q9 S e" q! |* Z& i
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>ln -s /dev/console /dev/xvc0
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---创建内网网桥
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! J" Q- B( g9 s, l7 i7 Uvi ifcfg-xenbr2
* |8 [" h# y$ ]) h- A6 ]# x VDEVICE=xenbr25 _6 r; s) D* M7 J' ^( F% W
BOOTPROTO=static
9 j/ s& g# S3 K" z; g, bONBOOT=yes0 e1 n/ Q& C" F* Y
TYPE=Bridge
- ~0 f, j3 y3 N9 O9 k启动网桥& j1 }( z* K) N: H3 g5 s4 x$ p
ifup xenbr2
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----编辑虚拟机配置文件; _4 q8 R. O4 K. C" ^
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name="oradb1"
/ n* Q+ f7 x+ I9 B- s7 V9 ^kernel="/boot/vmlinuz-2.6.18-238.el5xen", N8 C2 S: @3 z# C8 l: y+ i$ S* x2 b. R
ramdisk="/boot/initrd-2.6.18-238.el5xen.wd.img"8 E3 s( _1 {/ [7 T8 C# F# c
memory="2048"2 H5 T- ?$ F4 Y9 z7 a7 P
vcpus = 2) R: K. _3 k& z! o+ O
vif=['mac=00:16:3e:2e:40:cf,bridge=xenbr0','mac=00:16:3e:2e:a9:41,bridge=xenbr1']
* _0 K! m1 x! ~9 K W. [* H6 sdisk=['tap:aio:/slview/db1.img,sda1,w','tap:aio:/slview/vot1.img,sdb,w!','tap:aio:/slview/vot2.img,sdc,w!','tap:aio:/slview/ocr1.img
) F; l& c _$ m# q) U B" y,sdd,w!','tap:aio:/slview/ocr2.img,sde,w!','tap:aio:/root/data1.img,sdf,w!','tap:aio:/slview/swap1.img,sdg,w','tap:aio:/slview/ocr3.
`9 q( U' [, ~8 _) G6 Vimg,sdh,w!','tap:aio:/slview/flash1.img,sdi,w!','tap:aio:/slview/flash2.img,sdj,w!','tap:aio:/root/data2.img,sdk,w!']
6 P: p2 G4 B+ i$ B/ E+ L( {- Vroot="/dev/sda1 rw". n" x3 U$ u+ l% m
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网桥配置：
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( a$ z9 E! I1 ^) {, G t" v修改 Xend 配置文件 /etc/xen/xend-config.sxp ，取消下面两行的注释:" [# S$ \) I3 \& C
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(network-script network-bridge)6 @' f5 e7 J! p1 {
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" P [; {) f$ X5 Q. W. Y使用brctl show来查看网桥
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: W0 d ^7 T( l) WDomU的config中设置vif = ['bridge=xenbr0']4 b; a) J* O( C9 j& \
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[root@db6 xen]# cat oralinux+ j$ O& n$ k& \
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name = "oravm1"- W' \; \ [7 X N1 ]4 ?0 F/ y
! a$ p, w. C" Z$ B8 m+ W7 m2 Skernel = "/boot/vmlinuz-2.6.18-194.el5xen"* @# H7 a% v2 m X0 S
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ramdisk = "/boot/initrd-2.6.18-194.el5xen.wd.img"
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$ @' A- {* _% @' M( M# i& {memory = "256"
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! u& o* v" q4 o5 d4 j# Q0 cvcpus = 2% K/ H# R/ ]6 p% ~" a9 U3 f
( W/ N) I0 }% u3 Y1 |" ~vif = [ 'ip=192.168.1.140,bridge=xenbr0','ip=192.168.100.140,bridge=xenbr1' ]
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2 H9 b! m5 e9 u- rdisk = [ 'file:/domU/xen.img,hda1,w','file:/domU/sdb.img,sdb,w!','file:/domU/sdc.img,sdc,w!','phy:/dev/mapper/oradata1,sdn,w!' ]/ A7 _4 f+ E- o! r
! y9 Z! X+ l9 ]! |- troot = "/dev/hda1 ro "3 M) ]4 r* P X6 { G: p6 B' ~7 P, c
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------------------------------------------------------虚拟机-----------------/ ~+ K: i- u1 c J" e' j
0 a" o! u+ O, R强制多虚拟机共享存储" f7 W2 [1 e( b# F8 g) {4 f. v
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phy:/dev/sda,sda,w! 加叹号) Z4 ]8 J* P. Y7 _9 i3 A
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需要让xend为两块网卡创建bridge，需要修改/etc/xen/xend-config.sxp，将(network-script 'network-bridge')# Q. a( v, h. f' u1 C+ q, v
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(network-script 'my_network_script')( z5 N: b$ n+ k, C! K9 q, @0 c+ O0 t
' Y7 n! q/ t( I7 u3 y$ }9 u o' V. smy_network_script是我们自己的脚本，创建/etc/xen/scripts/my_network_script内容如下：# v8 ~7 B( J9 }# I; ?
- E. o: @& L4 i- q! ^#!/bin/sh
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dir=$(dirname "$0")
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' r0 Y5 m0 X6 k/ O0 l- L4 i"$dir/network-bridge" "$@" vifnum=0 netdev=eth0 bridge=xenbr0, [( e9 c2 ]) v
, E3 ~ e/ o9 t* N2 z$ \"$dir/network-bridge" "$@" vifnum=1 netdev=eth1 bridge=xenbr1
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将my_network_script加上执行权限：
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3 x2 E$ j# X, z1 N6 n7 y" Vchmod a+x /etc/xen/scripts/my_network_script
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4 C8 E. S9 B; h6 [. L- x0 @5 L" h重启服务器，可以用ifconfig看到xend创建的4个网络接口, X4 H6 [ s2 c( M. \& V
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可以看到虚拟交换机上的连接如下：5 p( @% }5 B; m' E
[root@rac2 xen]# brctl show% f8 g* k: `9 s: f
bridge name bridge id STP enabled interfaces
' L! J9 ~% O `" zxenbr0 8000.feffffffffff no vif1.0 dom1的eth0
! o+ ?# {0 e/ g peth0 主机的物理网卡0, W8 o* c3 P% o5 ?- U9 D
vif0.0 Dom0的eth0
- `. O; A& Y5 r+ Sxenbr1 8000.feffffffffff no vif1.1 Dom1的eth1
+ h" L- p5 _& U/ ] peth1 主机的物理网卡1
8 v1 f& [' h6 _5 }. f2 i9 { vif0.1 Dom0的eth1
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编辑虚拟机配置文件：, I* L0 p2 V, h2 P; C
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Error: Device 2048 (vbd) could not be connected. Failed to find an unused loop device& B, |, M8 `2 z2 d
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Error: Device 2064 (vbd) could not be connected. losetup -r /dev/loop8 /domU/sdb.img failed: b4 z( |. V# i- L" I5 h
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>losetup -a 查看loop设备使用情况
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+ i. x; `) Q- C% g: f, r- ~) N再卸载 loop 模块 rmmod loop
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# m" R/ u C" F! J; B& T# `>vi /etc/modprobe.conf
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options loop max_loop=16
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0 Y6 N; ]8 l5 r1 g2 r再重新加载 loop 模块检查是否生效" i2 M$ ~" Z$ Z* o$ C) l1 l6 {2 N
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modprobe loopdmesg | grep loop # 应当能见到 loop: loaded (max 16 devices)
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! `, f% d" E* [& U8 b' \最后建立 loop 设备文件5 K `9 _3 T- y) S; F7 N
4 F+ [/ {) e% g& G* c8 _& V; `' Kls -d /dev/loop*
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mknod -m0660 /dev/loop9 b 7 8
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chown root:disk /dev/loop9
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# R7 v) a' ~- C5 v1 T' nmknod loop8 b 7 8+ A% ]/ O: |0 j5 a, J7 X: w- H
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mknod loop9 b 7 9
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- w* E: ?6 ~4 LQ: ADDRCONF(NETDEV_UP): vif1.0: link is not ready
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A: 将/dev/sda1改为/dev/hda1
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8 ?( d. U2 ^% Q7 ?2 h4 ~& G( hQ： 使用vnc报以下错误4 m% H9 }9 \* S2 e; I* P5 I
[root@db1 ~]# su - grid) Q+ J+ S$ i0 @0 U6 g
-bash-3.2$ xclock
! c2 q" S6 o2 i1 n+ a: M' KXlib: connection to ":1.0" refused by server
/ k+ B* U6 f$ B4 k1 T. ^Xlib: No protocol specified! a6 l" M+ s' Q+ [
Error: Can't open display: :1.0( Z; C. R, f2 t/ i
1 B# P$ q5 E/ }7 ]+ L) wA: 用root帐号执行下列命令既可
; d/ B3 n- ]) m! ^5 X# q* jxhost + localhost( D6 e7 o: i; u
# Z. @5 U$ B1 I, V+ BQ：fdisk分区表无法保存3 `, X/ M( ` F5 y
A：
- Q. o! i0 n0 i5 Ochmod 755 *.img
* k" f5 J3 w/ m! b# F5 j/ h* Ifile:/slview/db1.img 改成tape:aio:/slview/db1.img* F/ @& ~- ~5 ~
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Q：mkrootdev: expected fs options
* ~4 I3 Y# Z5 v& a: N. i2 j mount: missing mount point
( q' Y0 g( c' m6 E setuproot: moving /dev failed No such file or directory* N5 ~3 c% t/ @2 ]
setuproot: error mounting /proc: No such file or directory
c% Y/ F1 i- y- c setuproot: error mounting /sys: No such file or directory- F* o7 M0 i8 y$ I z( |
switchroot: mount failed: No such file or directory
% T! _) h1 \ P3 dA：mkinitrd, /fstab内容
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1 m+ c$ L3 } _: gQ: /sbin/hwclock: error while loading shared libraries: libaudit.so.0: cannot open shared object file: Permission denied5 p4 S! c5 H$ n; Q ]
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A: 关闭selinux |
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发表于 2019-9-28 15:14:53