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zvm-centos4: finished the first version
author Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
date Fri, 07 Nov 2008 12:51:45 -0500
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8 </p> 8 </p>
9 9
10 <p> 10 <p>
11 The following howto assumes, that you know at least a little bit of: 11 The following howto assumes, that you know at least a little bit of:
12 <ul> 12 <ul>
13 <li>CentOS/RHEL familiarity</li> 13 <li>CentOS/RHEL installer familiarity on non s390</li>
14 <li>General networking knowledge</li> 14 <li>General networking knowledge</li>
15 </ul> 15 </ul>
16 </p> 16 </p>
17 17
18 <p> 18 <p>
34 <p> 34 <p>
35 First of all, you'll need to get the installation files to get things going. 35 First of all, you'll need to get the installation files to get things going.
36 </p> 36 </p>
37 37
38 <p> 38 <p>
39 So, point your browser to the mirror nearest you, navigate to this rather 39 So, point your browser to the mirror nearest you, navigate to this path:
40 long path:
41 <pre>/centos-4/4.6/os/s390/images/</pre> 40 <pre>/centos-4/4.6/os/s390/images/</pre>
42 41
43 and grab these files: 42 and grab these files:
44 <pre> 43 <pre>
45 redhat.exec
46 kernel.img 44 kernel.img
47 initrd.img 45 initrd.img
48 generic.prm 46 generic.prm
49 </pre> 47 </pre>
50 48
51 I used CentOS 4.6 to write this howto, but a newer version should work just 49 I used CentOS 4.6 to write this howto, but a newer version should work just
52 as well.<br/> 50 as well.<br/>
53 <br/> 51 <br/>
54 Note: If you want a 64-bit system, you'll want to use <strong>s390x</strong> 52 Note: If you want a 64-bit system, you'll want to use <strong>s390x</strong>
55 in the path instead. 53 in the path instead.<br/>
54 <br/>
55 I used this REXX script as to make my life easier. I called it
56 redhat.exec (you'll notice that some of the files are called redhat or rhel,
57 that's because I based my install steps on scripts/config files used to
58 install RHEL on s390):<br/>
59 <pre>
60 /* */
61 'CL RDR'
62 'PURGE RDR ALL'
63 'SPOOL PUNCH * RDR'
64 'PUNCH KERNEL IMG A (NOH'
65 'PUNCH REDHAT PARM A (NOH'
66 'PUNCH INITRD IMG A (NOH'
67 'CH RDR ALL KEEP NOHOLD'
68 'I 00C'
69 </pre>
56 </p> 70 </p>
57 71
58 <p> 72 <p>
59 Login to your VM id, and start CMS <pre>ipl cms</pre>. Then transfer the 73 Login to your VM id, and start CMS <pre>ipl cms</pre>. Then transfer the
60 files you got to your A minidisk. You can either use FTP, or IND$FILE 74 files you got to your A minidisk. You can either use FTP, or IND$FILE
61 through your 3270 terminal emulator. I used the IND$FILE method via c3270.<br/> 75 through your 3270 terminal emulator. I used the IND$FILE method via c3270.<br/>
62 <br/> 76 <br/>
63 <b>Note:</b> The .img files should be transfered as binaries, and the other two 77 <b>Note:</b> The .img files should be transfered as binaries, and the other
64 need to be converted to EBCDIC. Both, FTP and IND$FILE support converting 78 two need to be converted to EBCDIC. Both, FTP and IND$FILE support
65 between ASCII and EBCDIC.<br/> 79 converting between ASCII and EBCDIC.<br/>
66 <br/> 80 <br/>
67 I used the following commands in c3270 to do the transfers:<br/> 81 I used the following commands in c3270 to do the transfers:<br/>
68 82
69 <pre> 83 <pre>
70 transfer host=vm ... mode=binary localfile=kernel.img &quot;hostfile=kernel img a&quot; 84 transfer host=vm ... mode=binary localfile=kernel.img &quot;hostfile=kernel img a&quot;
84 <p> 98 <p>
85 At this point, your CMS A minidisk should look like something like 99 At this point, your CMS A minidisk should look like something like
86 this:<br/> 100 this:<br/>
87 <img src="zvm-centos4/install1.png" alt="CMS listing the files on A" /><br/> 101 <img src="zvm-centos4/install1.png" alt="CMS listing the files on A" /><br/>
88 <br/> 102 <br/>
89 The RHEL5.CONF file contains configuration options for the installer. 103 The RHEL5.CONF file contains configuration options for the installer. Here's
90 <pre> 104 an example config file from the CentOS install docs:
91 FIXME: example conf file 105
92 </pre> 106 <pre>
107 DASD=200
108 HOSTNAME=client.z900.example.com
109 NETTYPE=ctc
110 IPADDR=192.168.0.10
111 SUBCHANNELS=0.0.0150,0.0.0151
112 NETWORK=192.168.0.0
113 NETMASK=255.255.255.0
114 SEARCHDNS=example.com:dns.example.com:z900.example.com
115 BROADCAST=192.168.0.255
116 GATEWAY=192.168.0.1
117 DNS=192.168.0.254
118 MTU=1492
119 CTCPROT=0
120 </pre>
121
122 You will want to change the DASD to list all your DASDs that Linux should
123 bring online. The HOSTNAME, IPADDR, NETWORK, NETMASK, SEARCHDNS, BROADCAST,
124 GATEWAY, DNS, and MTU need to be changed to match your network config. And
125 chances are that you'll want to change NETTYPE to qeth, or something other
126 than ctc (possible values are: ctc, qeth, iucv, lcs). Go read the
127 <a href="http://www.centos.org/docs/4/4.5/rhel-ig-s390-multi-en-4/ch-parmfiles.html">CentOS documentation</a>
128 to figure out what are all the options you can use in the config file.
93 </p> 129 </p>
94 130
95 <p> 131 <p>
96 Now, it is time to run the REXX script. Just type <pre>redhat</pre> and 132 Now, it is time to run the REXX script. Just type <pre>redhat</pre> and
97 press enter. You'll see the reader getting purged, and then three files 133 press enter. You'll see the reader getting purged, and then three files
98 getting punched:<br/> 134 getting punched:<br/>
99 <img src="zvm-centos4/install2.png" alt="Files punched to RDR" /> 135 <img src="zvm-centos4/install2.png" alt="Files punched to RDR" />
100 </p> 136 </p>
101 137
102 <p> 138 <p>
103 FIXME: do I need to IPL by hand?<br/>
104 Shortly after, you'll see the kernel banner displayed. Since I installed 139 Shortly after, you'll see the kernel banner displayed. Since I installed
105 CentOS 4.x, the kernel version is 2.6.9. If you use 5.x, the version will be 140 CentOS 4.x, the kernel version is 2.6.9. If you use 5.x, the version will be
106 obviously different.<br/> 141 obviously different.<br/>
107 <img src="zvm-centos4/install3.png" alt="Kernel banner" /> 142 <img src="zvm-centos4/install3.png" alt="Kernel banner" />
108 </p> 143 </p>
109 144
110 <p> 145 <p>
111 After a few screen-fulls of output, you should be prompted for ... FIXME.
112 FIXME: Include a screenshot.
113 </p>
114
115 <p>
116 Some more scrolling later, you'll see a message prompting you to telnet or 146 Some more scrolling later, you'll see a message prompting you to telnet or
117 ssh into the system, and continue with the installation process:<br/> 147 ssh into the system, and continue with the installation process:<br/>
118 <img src="zvm-centos4/install5.png" alt="SSH/telnet prompt" /><br/> 148 <img src="zvm-centos4/install5.png" alt="SSH/telnet prompt" /><br/>
119 SSH or telnet in as root. The password is the empty string, so when 149 SSH or telnet in as root. The password is the empty string, so when
120 prompted, simply press the enter key.<br/> 150 prompted for it, simply press the enter key.<br/>
121 <br/> 151 <br/>
122 At this point, the install process is much like network install on any other 152 At this point, the install process is much like network install on any other
123 architecture. 153 architecture.
124 </p> 154 </p>
125 155
126 <p> 156 <p>
127 The regular CentOS installer will kicks. It'll prompt you for the type of 157 The regular CentOS installer will kick in. It'll prompt you for the type of
128 install (http, ftp, nfs - FIXME: verify + image). I went with HTTP.<br/> 158 install (http, ftp, nfs). I went with HTTP.<br/>
129 <br/> 159 <br/>
130 The next screen prompts you for the hostname and path on the HTTP server 160 The next screen prompts you for the hostname and path on the HTTP server
131 that contains the CentOS packages:<br/> 161 that contains the CentOS packages:<br/>
132 <img src="zvm-centos4/install7.png" alt="SSH/telnet prompt" /><br/> 162 <img src="zvm-centos4/install7.png" alt="SSH/telnet prompt" /><br/>
133 Right after, the installer tries to grab stage 2 of itself: 163 Right after, the installer tries to grab stage 2 of itself:
134 <img src="zvm-centos4/install8.png" alt="Stage2 being downloaded" /><br/> 164 <img src="zvm-centos4/install8.png" alt="Stage2 being downloaded" /><br/>
135 </p> 165 </p>
136 166
137 <p> 167 <p>
138 FIXME: partitions 168 Partition your DASDs whichever way you want. It's a good idea to use LVM,
169 since DASDs are limited to about 2.2GB (3338 cylinders). On my setup, I made
170 /home a logical volume of 5 3390-3 DASDs.
139 </p> 171 </p>
140 172
141 <p> 173 <p>
142 Most of the questions the installer normally asks you get answered by the 174 Most of the questions the installer normally asks you get answered by the
143 options in the RHEL5.CONF file (FIXME: rename). And before long, you'll see 175 options in the RHEL5.CONF file. And before long, you'll see the install
144 the install process doing its thing:<br/> 176 process doing its thing:<br/>
145 <img src="zvm-centos4/install9.png" alt="Install!" /> 177 <img src="zvm-centos4/install9.png" alt="Install!" />
146 </p> 178 </p>
147 179
148 <p> 180 <p>
149 Although this howto was aimed at 31-bit CentOS...<br/> 181 Although this howto was aimed at 31-bit CentOS...<br/>
150 <ul> 182 <ul>
151 <li> installing a 64-bit version should be the same process...just 183 <li> installing a 64-bit version should be the same process...just
152 use the <i>s390x</i> directories on the mirror instead of 184 use the <i>s390x</i> directories on the mirror instead of
153 <i>s390</i>.</li> 185 <i>s390</i>.</li>
154 <li> installing RHEL 4.x should be the same process; just point the 186 <li> installing RHEL 4.x should be the same process; just grab the
155 installer at a server with RHEL4 RPMS.</li> 187 right kernel/initrd files, and then point the installer at a server
188 with RHEL4 RPMS.</li>
156 </ul> 189 </ul>
157 </p> 190 </p>
158 191
159 <h2>Final Note</h2> 192 <h2>Final Note</h2>
160 <p> 193 <p>