需要安装服务
bind dhcp system-config-netboot tftp-server
dhcp配置
[root@xifenfei ~]# more /etc/redhat-release
Red Hat Enterprise Linux AS release 4 (Nahant Update 8)
[root@xifenfei ~]# more /etc/dhcpd.conf
subnet 192.168.30.0 netmask 255.255.255.0 {
range dynamic-bootp 192.168.30.101 192.168.30.126;
option broadcast-address 192.168.30.255;
option routers 192.168.30.1;
next-server 192.168.30.90;
filename = "pxelinux.0";
}
--以下直接复制无需修改
ddns-update-style none;
subnet 10.182.77.0 netmask 255.255.255.0 {}
subnet 10.182.45.0 netmask 255.255.255.0 {
range dynamic-bootp 10.182.45.92 10.182.45.100;
option broadcast-address 10.182.45.255;
option routers 10.182.45.1;
next-server 10.182.77.133;
filename = "pxelinux.0";
}
tftp配置
[root@xifenfei ~]# more /etc/xinetd.d/tftp
service tftp
{
socket_type = dgram
protocol = udp
wait = yes
user = root
server = /usr/sbin/in.tftpd
server_args = -v -s /xd
disable = no
per_source = 11
cps = 100 2
flags = IPv4
}
nfs配置
[root@xifenfei ~]# more /etc/exports /xd *(no_root_squash,no_subtree_check,insecure)
pxe配置
[root@xifenfei ~]# cp /usr/share/syslinux/pxelinux.0 /xd [root@xifenfei pxelinux.cfg]# more /xd/pxelinux.cfg/default default linux timeout 70 label cell prompt 1 display boot.msg kernel dl180/vmlinux-11.2.3.2.1-dl180-DL180 append initrd=dl180/initrd-11.2.3.2.1-dl180-DL180.img pxe stit updfrm dhcp sk=192.168.30.90:/xd/dl180 preconf=192.168.30.90:/xd/prec onf.csv label db prompt 1 display boot.msg kernel dl360/vmlinux-11.2.3.2.1-dl360-DL360 append initrd=dl360/initrd-11.2.3.2.1-dl360-DL360.img pxe stit updfrm dhcp sk=192.168.30.90:/xd/dl360 preconf=192.168.30.90:/xd/prec onf.csv
tar -pxvf the ImageMaker.tar cd /xd/dl180 [root@xifenfei dl180]# ./makeImageMedia.sh -pxe -pxeout dl180 Please wait. Calculating md5 checksums for cellbits ... Calculating md5 checksum for exaos.tbz ... Calculating md5 checksum for cellboot.tbz ... Calculating md5 checksum for cellfw.tbz ... Calculating md5 checksum for kernel.tbz ... Calculating md5 checksum for ofed.tbz ... Calculating md5 checksum for sunutils.tbz ... Calculating md5 checksum for hputils.tbz ... Calculating md5 checksum for c7rpms.tbz ... Calculating md5 checksum for commonos.tbz ... Calculating md5 checksum for debugos.tbz ... Calculating md5 checksum for cellrpms.tbz ... Calculating md5 checksum for doclib.zip ... Calculating md5 checksum for cell.bin ... Store filename of nfsimg tarball nfsimg-11.2.3.2.1-dl180-DL180.tar inside initrd Please wait. Making initrd ... 214836 blocks Please wait. Calculating md5 checksums for boot ... PXE NFS image: /xd/dl180/./PXE/nfsimg-11.2.3.2.1-dl180-DL180.tar PXE NFS md5 sum: /xd/dl180/./PXE/nfsimg-11.2.3.2.1-dl180-DL180.tar.md5 PXE initrd: /xd/dl180/./PXE/initrd-11.2.3.2.1-dl180-DL180.img PXE kernel: /xd/dl180/./PXE/vmlinux-11.2.3.2.1-dl180-DL180 [root@xifenfei dl180]# mv /xd/dl180/./PXE/nfsimg-11.2.3.2.1-dl180-DL180.tar /xd/dl180/ [root@xifenfei dl180]# mv /xd/dl180/./PXE/nfsimg-11.2.3.2.1-dl180-DL180.tar.md5 /xd/dl180/ [root@xifenfei dl180]# mv /xd/dl180/./PXE/initrd-11.2.3.2.1-dl180-DL180.img /xd/dl180/ [root@xifenfei dl180]# mv /xd/dl180/./PXE/vmlinux-11.2.3.2.1-dl180-DL180 /xd/dl180/ [root@xifenfei dl180]# ll total 1531612 drwxr-xr-x 3 root root 4096 Mar 26 23:41 boot drwxrwxr-x 2 root root 4096 Jan 9 22:34 doc drwxr-xr-x 2 root root 4096 Jan 9 22:33 grub drwxr-xr-x 17 root root 4096 Mar 26 23:41 initrd -rw-r--r-- 1 root root 38839215 Mar 26 23:41 initrd-11.2.3.2.1-dl180-DL180.img -rwxrwxr-x 1 root root 27485 Jan 9 22:34 makeImageMedia.sh -rw-r--r-- 1 root root 1524193280 Mar 26 23:40 nfsimg-11.2.3.2.1-dl180-DL180.tar -rw-r--r-- 1 root root 68 Mar 26 23:41 nfsimg-11.2.3.2.1-dl180-DL180.tar.md5 drwxrwxr-x 3 root root 4096 Jan 9 22:34 patches drwxr-xr-x 2 root root 4096 Mar 26 23:48 PXE -r-xr-xr-x 1 root root 39041 Mar 31 2011 README_FOR_FACTORY.txt -r-xr-xr-x 1 root root 3688864 Mar 26 23:41 vmlinux-11.2.3.2.1-dl180-DL180
上传preconf.csv到/xd目录
[root@xifenfei xd]# ll preconf.csv -rw-r--r-- 1 root root 2133 Mar 14 18:14 preconf.csv
然后重启dhcp,xinetd,nfs服务,重启需要恢复的xd的db and cell节点,验证结果如下
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注意在RHEL5中在/usr/lib/syslinux/pxelinux.0
参数说明
pxe - signals this is pxe imaging mandatory parameter factory - print special [FACTORY_...] messages for use by factory. optional parameter. stit - signals to force reimage even if installation exists on the machine optional parameter updfrm - check hardware and firmware versions. Update firmware where applicable. optional parameter. kerver=<kernel_version> overwrite default kernel. By defaut installing kernel version depends on hardware type (system product name). List of kernels and hardware dependencies defined in the "kernel_ver" line at the very top of makeImageMedia.sh script. dualboot=<yes|no> overwtire default dual boot behaviour. It's only applicable for the db node. By default dual boot feature (installing Linux image and prereserving space for Solaris) depends on hardware type (system product name). By default X4170 M2 and X4800 (G5) servers have dual boot. dhcp - dhcp is optional parameter and should NOT be given with eth0 option If given, dhcp is used to obtain the initial dhcp address instead of requiring to pass the eth0 information. ethX=<ip>:<netmask>:<gateway> - ethX is optional parameter. Do NOT give with dhcp above. - where X is one of 0,1,2,3 on Sun and 0 on HP machines If both dchp and ethX are absent imaging will enter interactive mode and ask for Ethernet ip, netmask and gateway information sk=<nfsip>:<nfs_share> - sk is mandatory parameter for the PXE boot. MUST use IP address not the hostname for NFS server. nfs_share is the full path to directory where the 3 files from PXE directory are available logpath=[nfsip:]<full path to writeable nfs share> - logpath is optional parameter If given it will copy the imaging, zero and first boots logs to the writable nfs share location in single tar bzip2 file <serial_num>.tbz. The serial_num is the serial number of the system obtained as dmidecode -s system-serial-number ----------------------------------------------- Development ONLY options NOT for use in Factory ----------------------------------------------- reboot-on-success - Do not wait for operator to power off machine on successful image, just reboot. Useful for mass unattended imaging using preconf option. DO NOT use in factory process. optional parameter multiprof - Image the node as multi profile enabled This parameter is optional NOTE: Do NOT build the images with -multiprof to makeImageMedia.sh If you do that image can only be used to do multi profile nodes. nodisktests - do not run disktests at zero boot. They take 6-14 hours! This parameter is optional notests=<group for validations to be skipped, e.g. diskgroup> - Skips all validations with given vldgroup name. For example, if diskgroup is given as the group name, then each validation with vldgroup set to diskgroup will be skipped. diskgroup today includes disktests, calibration and diskhealth. This is one more way to skip disktests in addition to the nodisktests option. This parameter is optional preconf=[<preconf_nfsip>:]<full path name of preconf_file on nfs server> - preconf is optional parameter The nfsip MUST be IP address of the NFS server not its hostname The preconf_nfsip can be same or different than the nfsip in sk option, allowing the preloaded configuration file to reside on different subtree or entirely different nfs server from that of the imaging bits on the nfsip nfs server.如果不需要双引导启动，设置dualboot=no