/[gentoo]/xml/htdocs/doc/en/altinstall.xml
Gentoo

Contents of /xml/htdocs/doc/en/altinstall.xml

Parent Directory Parent Directory | Revision Log Revision Log


Revision 1.73 - (hide annotations) (download) (as text)
Thu Sep 20 18:36:49 2007 UTC (6 years, 11 months ago) by nightmorph
Branch: MAIN
Changes since 1.72: +14 -3 lines
File MIME type: application/xml
added noop for bug 190598

1 zhen 1.3 <?xml version='1.0' encoding="UTF-8"?>
2 nightmorph 1.73 <!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/altinstall.xml,v 1.72 2007/04/03 18:20:23 jkt Exp $ -->
3 antifa 1.12 <!DOCTYPE guide SYSTEM "/dtd/guide.dtd">
4 drobbins 1.1
5 zhen 1.2 <guide link="/doc/en/altinstall.xml">
6 neysx 1.32
7 drobbins 1.1 <title>The Gentoo Linux alternative installation method HOWTO</title>
8 neysx 1.32
9     <author title="Contributor">
10     <mail link="gerrynjr@gentoo.org">Gerald Normandin Jr.</mail>
11     </author>
12     <author title="Contributor">
13     <mail link="lordviram@rebelpacket.net">Travis Tilley</mail>
14     </author>
15     <author title="Contributor">
16     <mail link="volontir@yahoo.com">Oleg Raisky</mail>
17     </author>
18     <author title="Contributor">
19     <mail link="luminousit@hotmail.com">Alex Garbutt</mail>
20     </author>
21     <author title="Contributor">
22     <mail link="alex@openvs.com">Alexandre Georges</mail>
23     </author>
24     <author title="Contributor">
25     <mail link="vargen@b0d.org">Magnus Backanda</mail>
26     </author>
27     <author title="Contributor">
28     <mail link="davoid@gentoo.org">Faust A. Tanasescu</mail>
29     </author>
30     <author title="Contributor">
31     <mail link="aliz@gentoo.org">Daniel Ahlberg</mail>
32     </author>
33     <author title="Editor">
34 nightmorph 1.70 <mail link="swift@gentoo.org">Sven Vermeulen</mail>
35 neysx 1.32 </author>
36     <author title="Reviewer">
37 swift 1.36 Ken Nowack <!-- antifa@gentoo.org seems out -->
38 neysx 1.32 </author>
39     <author title="Editor">
40     <mail link="blubber@gentoo.org">Tiemo Kieft</mail>
41     </author>
42 bennyc 1.37 <author title="Editor">
43     <mail link="bennyc@gentoo.org">Benny Chuang</mail>
44     </author>
45 swift 1.53 <author title="Editor">
46 swift 1.57 <mail link="smithj@gentoo.org">Jonathan Smith</mail>
47 swift 1.53 </author>
48    
49 drobbins 1.1 <abstract>
50     This HOWTO is meant to be a repository of alternative Gentoo installation
51     methods, for those with special installation needs such as lack of a cdrom
52 gerrynjr 1.14 or a computer that can't boot cds.
53 drobbins 1.1 </abstract>
54    
55 rane 1.64 <!-- The content of this document is licensed under the CC-BY-SA license -->
56     <!-- See http://creativecommons.org/licenses/by-sa/2.5 -->
57 swift 1.21 <license/>
58    
59 nightmorph 1.73 <version>0.72</version>
60     <date>2007-09-20</date>
61 gerrynjr 1.9
62 drobbins 1.1 <chapter>
63     <title>About this document</title>
64     <section>
65     <body>
66    
67 neysx 1.32 <p>
68     If the standard boot-from-CD install method doesn't work for you (or you just
69     don't like it), help is now here. This document serves to provide a repository
70     of alternative Gentoo Linux installation techniques to those who need them.
71     Or, if you prefer, it serves as a place to put your wacky installation methods.
72     If you have an installation method that you yourself find useful, or you have
73     devised an amusing way of installing Gentoo, please don't hesitate to write
74 neysx 1.54 something up and post it on <uri link="http://bugs.gentoo.org">Bugzilla</uri>.
75 neysx 1.32 </p>
76 gerrynjr 1.9
77     </body>
78     </section>
79     </chapter>
80    
81     <chapter>
82 smithj 1.58 <title>Booting the Install CD with Smart BootManager</title>
83 gerrynjr 1.9 <section>
84 neysx 1.32 <body>
85 gerrynjr 1.9
86 neysx 1.32 <p>
87 swift 1.36 Download Smart BootManager available from
88     <uri>http://btmgr.sourceforge.net/download.html</uri>.
89 neysx 1.32 Linux source or binary format and windows .exe versions are available as well
90     as many language packs. However, at this time, the preferred method would be to
91     use the binary format, as the source will not compile with newer versions of
92     NASM.
93     </p>
94 gerrynjr 1.9
95 neysx 1.32 <p>
96     Either compile the package from source or just grab the binary. There are
97     several options that can be utilized while creating your boot floppy, as seen
98     below.
99     </p>
100 gerrynjr 1.9
101     <pre caption="Smart BootManager Options">
102 neysx 1.49 sbminst [-t theme] [-d drv] [-b backup_file] [-u backup_file]
103 gerrynjr 1.9
104 neysx 1.49 -t theme select the theme to be used, in which the theme could be:
105     us = English theme de = German theme
106     hu = Hungarian theme zh = Chinese theme
107     ru = Russian theme cz = Czech theme
108     es = Spanish theme fr = French theme
109     pt = Portuguese theme
110 gerrynjr 1.9
111    
112 neysx 1.49 -d drv set the drive that you want to install Smart BootManager on;
113     for Linux:
114     /dev/fd0 is the first floppy driver,
115     /dev/hda is the first IDE harddisk driver.
116     /dev/sda is the first SCSI harddisk driver.
117     for DOS:
118     0 is the first floppy drive
119     128 is the first hard drive;
120 gerrynjr 1.9
121     -c disable CD-ROM booting feature;
122    
123 gerrynjr 1.14 -b backup_file backup the data that will be overwritten for
124 gerrynjr 1.9 future uninstallation;
125    
126     -u backup_file uninstall Smart BootManager, should be used alone;
127    
128 neysx 1.49 -y do not ask any question or warning.
129 gerrynjr 1.9 </pre>
130    
131     <pre caption="Using sbminst to build the boot floppy">
132     # <i>sbminst -t us -d /dev/fd0</i>
133     </pre>
134    
135 neysx 1.32 <note>
136 rane 1.64 Replace <path>fd0</path> with your respective floppy device name if yours is different.
137 neysx 1.32 </note>
138    
139     <p>
140     Now simply place the floppy in the floppy drive of the computer you'd like to
141 smithj 1.58 boot the Install CD on, as well as placing the Install CD in the CD-ROM and boot
142     the computer.
143 neysx 1.32 </p>
144    
145     <p>
146     You'll be greeted with the Smart BootManager dialog. Select your CD-ROM and
147 smithj 1.58 press ENTER to boot the Install CD. Once booted proceed with the standard
148 neysx 1.32 installation instructions.
149     </p>
150    
151     <p>
152     Further information on Smart BootManager may be found at
153     <uri>http://btmgr.sourceforge.net/</uri>
154     </p>
155 gerrynjr 1.9
156     </body>
157     </section>
158     </chapter>
159    
160     <chapter>
161     <title>Knoppix Installation</title>
162     <section>
163     <body>
164    
165 swift 1.51 <note>
166     Knoppix is only available for x86 users.
167     </note>
168    
169 swift 1.57 <!-- this works with knoppix 3.6+ and gentoo 2004.3, 2005.0-->
170 swift 1.53
171 neysx 1.32 <p>
172     Booting from the <uri link="http://www.knoppix.org/">Knoppix</uri> LiveCD is a
173 neysx 1.56 way to have a fully functional system while you're compiling Gentoo. Tux Racer
174     will help you pass the time while you wait, and you can use OpenOffice for
175     work.
176 neysx 1.32 </p>
177 gerrynjr 1.9
178 neysx 1.56 <warn>
179     Be aware that if you save anything in Knoppix's home directory while waiting
180     for your Gentoo system to install, it will not be available when you reboot
181     into Gentoo. Be sure to save important files on the hard disk or on some other
182     computer!
183     </warn>
184    
185 neysx 1.32 <p>
186 neysx 1.56 Boot from the Knoppix CD. If you have Knoppix 3.6-3.8.2, you will need to
187     specify <c>knoppix26</c> as a boot option to load a 2.6 kernel. If you miss
188     this step, when you <c>chroot</c>, you will recieve an error saying that your
189     kernel is too old. If, however, you have Knoppix 3.9+, this step is
190     unnecessary, since the 2.6 kernel is default.
191 neysx 1.32 </p>
192    
193     <p>
194 rane 1.64 By default Knoppix boots into a KDE desktop. Open a <c>konsole</c> and <c>su -</c>
195 swift 1.53 so you can change your password. This lets you set the root password for
196     Knoppix. You can now configure <c>sshd</c> for remote login, at your
197     preference.
198 neysx 1.32 </p>
199 swift 1.16
200 swift 1.22 <pre caption="Creating the /mnt/gentoo mountpoint">
201     # <i>mkdir /mnt/gentoo</i>
202     </pre>
203    
204 neysx 1.32 <p>
205     At this point, you can pick up with the standard install documentation at <uri
206     link="/doc/en/handbook/handbook-x86.xml?part=1&amp;chap=4">part 4</uri>.
207 swift 1.53 However, when you are asked to mount the proc system, issue the following
208 neysx 1.32 command instead:
209     </p>
210 swift 1.22
211 neysx 1.32 <pre caption="Bind-mounting the proc pseudo filesystem">
212 swift 1.16 # <i>mount -o bind /proc /mnt/gentoo/proc</i>
213     </pre>
214    
215 smithj 1.60 <p>
216 jkt 1.61 Also, know that some of Portage's FEATURES will not work in knoppix. Especially
217 smithj 1.60 watch out for <c>userpriv</c> and <c>usersandbox</c>. If you find yourself
218     getting errors, it might be wise to disable some or all of the optional
219     features.
220     </p>
221    
222 swift 1.50 <!--
223     Commenting out due to #78716. If it needs to be restated again, note
224     that some will require to bind-mount it, others don't, and that you have
225     a 50-50 chance of winning the gold strike.
226    
227    
228 swift 1.45 <p>
229     You will also need to bind-mount the device tree to resolve permission issues
230     with various device files.
231     </p>
232    
233 swift 1.50 < ! - -
234 swift 1.45 If this doesn't seem to work, #71901 mentions the following command:
235     mount -o remount,rw,nosuid /dev/hd* /mnt/hd*
236     before all. Looks weird to me, but if this doesn't work, we might want to try
237     that.
238 swift 1.50 - - >
239 swift 1.45
240     <pre caption="Bind-mounting the device tree">
241     # <i>mount -o bind /dev /mnt/gentoo/dev</i>
242     </pre>
243 swift 1.50 -->
244 swift 1.45
245 gerrynjr 1.9 </body>
246     </section>
247     </chapter>
248    
249     <chapter>
250 neysx 1.32 <title>Diskless install using PXE boot</title>
251     <section>
252     <title>Requirements</title>
253     <body>
254 drobbins 1.1
255 neysx 1.32 <p>
256     You will need a network card on the diskless client that uses the PXE protocol
257     to boot, like many 3com cards. You will also need a BIOS that supports booting
258     from PXE.
259     </p>
260 drobbins 1.1
261     </body>
262     </section>
263 neysx 1.32 <section>
264     <title>Server base setup</title>
265 gerrynjr 1.9 <body>
266    
267 neysx 1.32 <p>
268     Create directories: The first thing to do is to create the directories where
269     your diskless system will be stored. Create a directory called
270     <path>/diskless</path> which houses a directory for each diskless client. For
271     the rest of this howto we'll be working on the client 'eta'.
272     </p>
273 gerrynjr 1.9
274 rane 1.62 <pre caption="Directory setup">
275 gerrynjr 1.9 # <i>mkdir /diskless</i>
276     # <i>mkdir /diskless/eta</i>
277     # <i>mkdir /diskless/eta/boot</i>
278     </pre>
279    
280 neysx 1.32 <p>
281     DHCP and TFTP setup: The client will get boot informations using DHCP and
282     download all the required files using TFTP. Just emerge DHCP and configure it
283     for your basic needs. Then, add the following on
284     <path>/etc/dhcp/dhcpd.conf</path>.
285     </p>
286 gerrynjr 1.9
287 neysx 1.32 <note>
288     This provide a static IP address for the client and the path of a PXE boot
289 rane 1.64 image, here <path>pxegrub</path>. You have to replace the MAC address of the Ethernet card
290 neysx 1.32 of the client and the directory where you will put the client files with the
291     one you use.
292     </note>
293 gerrynjr 1.9
294 swift 1.46 <p>
295     For DHCPd, run <c>emerge dhcp</c> (or any other DHCP server of your choice).
296     Make sure that the correct interface is selected in
297     <path>/etc/conf.d/dhcp</path>.
298     </p>
299    
300 gerrynjr 1.9 <pre caption="dhcp.conf">
301     option option-150 code 150 = text ;
302 swift 1.46 ddns-update-style none ;
303 gerrynjr 1.9 host eta {
304     hardware ethernet 00:00:00:00:00:00;
305 cam 1.24 fixed-address <i>ip.add.re.ss</i>;
306 gerrynjr 1.9 option option-150 "/eta/boot/grub.lst";
307     filename "/eta/boot/pxegrub";
308     }
309     </pre>
310    
311 neysx 1.32 <p>
312 nightmorph 1.73 Next you'll need to configure your interface in <path>/etc/conf.d/net</path> so
313     that it doesn't get cleared at bootup. See <path>/etc/conf.d/net.example</path>
314     for more information.
315     </p>
316    
317     <pre caption="/etc/conf.d/net">
318     <comment>(Replace eth0 with the correct interface)</comment>
319     config_eth0=( "noop" )
320     </pre>
321    
322     <p>
323 neysx 1.32 For TFTP, emerge <c>app-admin/tftp-hpa</c>. In
324     <path>/etc/conf.d/in.tftpd</path>, put the following :
325     </p>
326 gerrynjr 1.9
327     <pre caption="in.tftpd">
328     INTFTPD_PATH="/diskless"
329     INTFTPD_USER="nobody"
330     INTFTPD_OPTS="-u ${INTFTPD_USER} -l -vvvvvv -p -c -s ${INTFTPD_PATH}"
331     </pre>
332    
333 neysx 1.32 <p>
334 nightmorph 1.68 Setup GRUB: To provide PXE booting I use GRUB with the <c>netboot</c> USE flag
335     enabled. Once GRUB is compiled, copy the PXE image to the diskless client's
336     boot directory. Then edit its <path>grub.lst</path> config file.
337 neysx 1.32 </p>
338 gerrynjr 1.9
339 rane 1.62 <pre caption="Grub setup">
340 jkt 1.72 # <i>echo "sys-boot/grub netboot" &gt;&gt; /etc/portage/package.use</i>
341 nightmorph 1.68 # <i>emerge -av grub</i>
342     # <i>cp /usr/lib/grub/pxegrub /diskless/eta/boot/pxegrub</i>
343 gerrynjr 1.9 # <i>nano -w /diskless/eta/boot/grub.lst</i>
344     </pre>
345    
346     <pre caption="grub.lst">
347     default 0
348     timeout 30
349    
350     title=Diskless Gentoo
351     root (nd)
352 cam 1.24 kernel /eta/bzImage ip=dhcp root=/dev/nfs nfsroot=<i>ip.add.re.ss</i>:/diskless/eta
353 drobbins 1.1
354 swift 1.53 <comment># For the nfsroot option, the IP address is the one of the server and
355     the directory is the one where your diskless client files are located (on the server).</comment>
356 gerrynjr 1.9 </pre>
357    
358 neysx 1.32 <p>
359     Setup NFS: NFS is quite easy to configure. The only thing you have to do is to
360 neysx 1.67 add a line on the <path>/etc/exports</path> config file:
361 neysx 1.32 </p>
362 gerrynjr 1.9
363     <pre caption="/etc/exports">
364     # <i>nano -w /etc/exports</i>
365 neysx 1.32 # /etc/exports: NFS file systems being exported. See exports(5).
366 gerrynjr 1.9 /diskless/eta eta(rw,sync,no_root_squash)
367     </pre>
368    
369 neysx 1.32 <p>
370 neysx 1.67 Update your hosts: One important thing to do now is to modify your
371 neysx 1.32 <path>/etc/hosts</path> file to fit your needs.
372     </p>
373 gerrynjr 1.9
374     <pre caption="/etc/hosts">
375     127.0.0.1 localhost
376    
377     192.168.1.10 eta.example.com eta
378     192.168.1.20 sigma.example.com sigma
379     </pre>
380 neysx 1.32
381 gerrynjr 1.9 </body>
382     </section>
383 neysx 1.32 <section>
384     <title>Creating the system on the server</title>
385 gerrynjr 1.9 <body>
386    
387 neysx 1.32 <p>
388 smithj 1.58 You might want to reboot the server with a Gentoo Install CD, although you can
389 swift 1.34 very well continue immediately if you know how to proceed with the Gentoo
390     Installation Instructions from an existing installation. Follow the standard
391 rane 1.65 install procedure as explained in the <uri link="/doc/en/handbook/">Gentoo Handbook</uri> BUT with the
392 swift 1.34 following differences:
393 rane 1.64 When you mount the file system, do the following (where <path>hdaX</path> is the partition
394     where you created the <path>/diskless</path> directory). You do not need to mount any other
395 neysx 1.32 partitions as all of the files will reside in the <path>/diskless/eta</path>
396     directory.
397     </p>
398 gerrynjr 1.9
399 rane 1.62 <pre caption="Mounting the filesystem">
400 rane 1.66 #<i> mount /dev/hdaX /mnt/gentoo</i>
401 gerrynjr 1.9 </pre>
402    
403 neysx 1.32 <p>
404     Stage tarballs and chroot: This example uses a stage3 tarball. Mount
405     <path>/proc</path> to your diskless directory and chroot into it to continue
406     with the install. Then follow the installation manual until kernel
407     configuration.
408     </p>
409 gerrynjr 1.9
410 neysx 1.32 <warn>
411     Be very careful where you extract your stage tarball. You don't want to end up
412     extracting over your existing installation.
413     </warn>
414 gerrynjr 1.9
415 rane 1.62 <pre caption="Extracting the stage tarball">
416 gerrynjr 1.9 # <i>cd /mnt/gentoo/diskless/eta/</i>
417     # <i>tar -xvjpf /mnt/cdrom/gentoo/stage3-*.tar.bz2</i>
418     # <i>mount -t proc /proc /mnt/gentoo/diskless/eta/proc</i>
419     # <i>cp /etc/resolv.conf /mnt/gentoo/diskless/eta/etc/resolv.conf</i>
420     # <i>chroot /mnt/gentoo/diskless/eta/ /bin/bash</i>
421     # <i>env-update</i>
422     # <i>source /etc/profile</i>
423     </pre>
424    
425 neysx 1.32 <p>
426     Kernel configuration: When you do the <c>make menuconfig</c> of your kernel
427     configuration, don't forget to enable the following options with the others
428     recommended into the install howto.
429     </p>
430 gerrynjr 1.9
431     <pre caption="menuconfig options">
432     - Your network card device support
433 swift 1.34 <comment>(In the kernel, *not* as a module!)</comment>
434 gerrynjr 1.9
435     - Under "Networking options" :
436    
437     [*] TCP/IP networking
438     [*] IP: kernel level autoconfiguration
439     [*] IP: DHCP support
440     [*] IP: BOOTP support
441    
442    
443     - Under "File systems --> Network File Systems" :
444    
445     &lt;*&gt; NFS file system support
446     [*] Provide NFSv3 client support
447     [*] Root file system on NFS
448     </pre>
449    
450 neysx 1.32 <p>
451 swift 1.43 Save the kernel in your chrooted <path>/</path> (not in <path>/boot</path>)
452     according to the pxegrub setting defined earlier. Next configure your
453     diskless client's <path>/etc/fstab</path>.
454 neysx 1.32 </p>
455 gerrynjr 1.9
456     <pre caption="/etc/fstab">
457     # <i>nano -w /etc/fstab</i>
458     /dev/cdroms/cdrom0 /mnt/cdrom iso9660 noauto,ro 0 0
459     proc /proc proc defaults 0 0
460 vapier 1.41 tmpfs /dev/shm tmpfs nodev,nosuid,noexec 0 0
461 gerrynjr 1.9 </pre>
462    
463 neysx 1.32 <p>
464 swift 1.35 You also need to prevent the client to run a filesystem check:
465     </p>
466    
467     <pre caption="Preventing the client to run a filesystem check">
468     # <i>touch /fastboot</i>
469     # <i>echo "touch /fastboot" &gt;&gt; /etc/conf.d/local.start</i>
470     </pre>
471    
472     <p>
473 swift 1.43 Install <c>nfs-utils</c> since your client will heavily depend on it:
474     </p>
475    
476     <pre caption="Installing nfs-utils">
477     # <i>emerge nfs-utils</i>
478     </pre>
479    
480     <p>
481 neysx 1.32 Bootloader. Don't install another bootloader because we already have one -
482     pxegrub. Simply finish the install and restart the server. Start the services
483     you'll need to boot the new client: DHCP, TFTPD, and NFS.
484     </p>
485 gerrynjr 1.9
486     <pre caption="Starting services">
487     # <i>/etc/init.d/dhcp start</i>
488 swift 1.43 # <i>/etc/init.d/in.tftpd start</i>
489 gerrynjr 1.9 # <i>/etc/init.d/nfs start</i>
490     </pre>
491    
492 neysx 1.32 </body>
493     </section>
494     <section>
495     <title>Booting the new client</title>
496     <body>
497 gerrynjr 1.9
498 neysx 1.32 <p>
499     For the new client to boot properly, you'll need to configure the bios and the
500     network card to use PXE as the first boot method - before CD-ROM or floppy. For
501     help with this consult your hardware manuals or manufacturers website. The
502     network card should get an IP address using DHCP and download the GRUB PXE
503     image using TFTP. Then, you should see a nice black and white GRUB bootmenu
504     where you will select the kernel to boot and press Enter. If everything is ok
505     the kernel should boot, mount the root filesystem using NFS and provide you
506     with a login prompt. Enjoy.
507     </p>
508 gerrynjr 1.9
509 neysx 1.32 </body>
510     </section>
511 gerrynjr 1.9 </chapter>
512 drobbins 1.1
513 neysx 1.32 <chapter>
514     <title>Installing Gentoo from an existing Linux distribution</title>
515     <section>
516     <title>Requirements</title>
517     <body>
518 drobbins 1.1
519 neysx 1.32 <p>
520     In order to install Gentoo from your existing Linux distribution you need to
521 drobbins 1.1 have chroot command installed, and have a copy of the Gentoo installation
522     tarball or ISO you want to install. A network connection would be preferable if
523     you want more than what's supplied in your tarball. (by the way, a tarball is
524     just a file ending in .tbz or .tar.gz). The author used RedHat Linux 7.3 as the
525 neysx 1.32 "host" operating system, but it is not very important. Let's get started!
526     </p>
527    
528 drobbins 1.1 </body>
529     </section>
530 neysx 1.32 <section>
531     <title>Overview</title>
532     <body>
533    
534     <p>
535     We will first allocate a partition to Gentoo by resizing our existing Linux
536 rane 1.63 partition, mount the partition, untar the tarball to the partition that is mounted, chroot
537 neysx 1.54 inside the pseudo-system and start building. Once the bootstrap process is
538 neysx 1.32 done, we will do some final configuration on the system so as to make sure it
539     boots, then we are ready to reboot and use Gentoo.
540     </p>
541 drobbins 1.1
542     </body>
543     </section>
544 neysx 1.32 <section>
545     <title>How should we make space for Gentoo?</title>
546 drobbins 1.1 <body>
547    
548     <p>
549 neysx 1.32 The root partition is the filesystem mounted under <path>/</path>. A quick run
550 rane 1.64 of <c>mount</c> on my system shows what I am talking about. We well also use <c>df</c> (disk
551 neysx 1.32 free) to see how much space I have left and how I will be resizing. Note that
552     it is not mandatory to resize your root partition! You could be resizing
553     anything else supported by our resizer, but let's talk about that later.
554     </p>
555 drobbins 1.1
556     <pre caption="Filesystem information">
557     # <i>mount</i>
558 vapier 1.41 /dev/hdb2 on / type ext3 (rw)
559     none on /proc type proc (rw)
560     none on /dev/pts type devpts (rw,gid=5,mode=620)
561     none on /dev/shm type tmpfs (rw,nodev,nosuid,noexec)
562 drobbins 1.1 # <i>df -h </i>
563     Filesystem Size Used Avail Use% Mounted on
564     /dev/hdb2 4.0G 1.9G 2.4G 82% /
565 neysx 1.49 none 38M 0 38M 0% /dev/shm
566 drobbins 1.1 </pre>
567    
568 neysx 1.32 <p>
569     As we can see, the partition mounted as <path>/</path> named
570     <path>/dev/hdb2</path> has 2.4 gigabytes free. In my case, I think I will
571     resize it as to leave 400Megs free of space, therefore allocating 2 gigabytes
572 neysx 1.67 for Gentoo. Not bad, I could have quite some stuff installed. However, I think
573 neysx 1.32 that even one gigabyte is enough for most users. So let's partition this thing!
574     </p>
575 drobbins 1.1
576 swift 1.21 </body>
577     </section>
578     <section>
579     <title>Building parted to resize partition</title>
580 drobbins 1.1 <body>
581 swift 1.21
582     <p>
583 neysx 1.32 Parted is an utility supplied by the GNU foundation, an old and respectable
584     huge project whose software you are using in this very moment. There is one
585     tool, however, that is extremely useful for us at the moment. It's called
586     parted, partition editor and we can get it from
587     <uri>http://www.gnu.org/software/parted/</uri>
588 drobbins 1.1 </p>
589 swift 1.21
590     <note>
591 neysx 1.67 There are other tools for doing resize of partitions as well, but the author is
592 neysx 1.32 unsure/uninterested whether PartitionMagic(tm) or other software of the kind do
593     the job. It's the reader's job to check them out
594 swift 1.21 </note>
595 drobbins 1.1
596     <p>
597 neysx 1.32 Look up on that page the type of filesystem you want to resize and see if
598     parted can do it. If not, you're out of luck, you will have to destroy some
599     partition to make space for Gentoo, and reinstall back. Go ahead by downloading
600     the software, install it. Here we have a problem. We want to resize our Linux
601     root partition, therefore we must boot from a floppy disk a minimal linux
602     system and use previously-compiled parted copied to a diskette in order to
603     resize <path>/</path>. However, if you can unmount the partition while still
604     in Linux you are lucky, you don't need to do what follows. Just compile parted
605     and run it on an unmounted partition you chose to resize. Here's how I did it
606     for my system.
607 drobbins 1.1 </p>
608    
609 swift 1.21 <impo>
610 neysx 1.32 Make sure that the operations you want to do on your partition are supported by
611     parted!
612 swift 1.21 </impo>
613 drobbins 1.1
614 swift 1.21 <p>
615 neysx 1.49 Get the mininux boot/root disk (a 2.4-powered mini Linux distribution on a
616     floppy - free of charge) from <uri>http://mininux.free.fr/uk/</uri>, create a
617     floppy as suggested in the Documentation that accompanies the software package
618     and insert a new floppy in the drive for the next step.
619 swift 1.21 </p>
620 drobbins 1.1
621 swift 1.21 <note>
622     Note again that Linux is synonym of "There's one more way to do it". Your
623 drobbins 1.1 objective is to run parted on an unmounted partition so it can do its work. You
624 neysx 1.67 might use some boot/root diskset other than mininux. You might not even
625     need to do this step at all, ie. you might only have umount the filesystem you want to
626 swift 1.21 repartition in your Linux session and run parted on it.
627     </note>
628 drobbins 1.1
629     <pre caption="Utility disk creation">
630     # <i>mkfs.minix /dev/fd0</i>
631     480 inodes
632     1440 blocks
633     Firstdatazone=19 (19)
634     Zonesize=1024
635     Maxsize=268966912
636     </pre>
637    
638 swift 1.21 <p>
639 neysx 1.32 We will now proceed with the build of parted. If it's not already downloaded
640 rane 1.64 and untarred, do so now and <c>cd</c> into the corresponding directory. Now run the
641 neysx 1.32 following set of commands to build the utility and copy it to your floppy disk.
642 swift 1.21 </p>
643 drobbins 1.1
644     <pre caption="Building the utility floppy">
645     # <i> mkdir /floppy; mount -t minix /dev/fd0 /floppy &amp;&amp;
646     export CFLAGS="-O3 -pipe -fomit-frame-pointer -static" &amp;&amp; ./configure
647     &amp;&amp; make &amp;&amp; cp parted/parted /floppy &amp;&amp; umount /floppy </i>
648     </pre>
649    
650     <p>
651 neysx 1.32 Congratulations, you are ready to reboot and resize your partition. Do this
652     only after taking a quick look at the parted documentation on the GNU website.
653     The resize should take under 30 minutes for the largest hard-drives, be
654 swift 1.48 patient. Reboot your system with the mininux boot disk (just pop it inside),
655 neysx 1.32 and once you are logged in, switch the disk in the drive with your utility disk
656 rane 1.64 we have created above and type <c>mount /dev/fd0 /floppy</c> to have parted under
657     <path>/floppy</path>. There you go. Run parted and you will be able to resize your
658 neysx 1.32 partition. Once this lenghty process done, we are ready to have the real fun,
659 neysx 1.67 by installing Gentoo. Reboot back into your old Linux system for now. The drive you
660 neysx 1.32 wish to operate on is the drive containing the partition we want to resize. For
661 swift 1.8 example, if we want to resize /dev/hda3, the drive is /dev/hda
662     </p>
663 drobbins 1.1
664 swift 1.48 <pre caption="Commands to run once logged into mininux system">
665 drobbins 1.1 # <i>mount /dev/fd0 /floppy </i>
666     # <i>cd /floppy; ./parted [drive you wish to operate on]</i>
667     (parted) <i> print </i>
668     Disk geometry for /dev/hdb: 0.000-9787.148 megabytes
669     Disk label type: msdos
670     Minor Start End Type Filesystem Flags
671     1 0.031 2953.125 primary ntfs
672     3 2953.125 3133.265 primary linux-swap
673     2 3133.266 5633.085 primary ext3
674     4 5633.086 9787.148 extended
675     5 5633.117 6633.210 logical
676     6 6633.242 9787.148 logical ext3
677     (parted) <i> help resize </i>
678     resize MINOR START END resize filesystem on partition MINOR
679    
680     MINOR is the partition number used by Linux. On msdos disk labels, the
681     primary partitions number from 1-4, and logical partitions are 5
682     onwards.
683     START and END are in megabytes
684     (parted) <i> resize 2 3133.266 4000.000 </i>
685     </pre>
686    
687 neysx 1.32 <impo>
688 neysx 1.67 Be patient! The computer is working! Just look at the harddrive LED on your case
689 neysx 1.32 to see that it is really working. This should take between 2 and 30 minutes.
690     </impo>
691 drobbins 1.1
692 neysx 1.32 <p>
693     Once you have resized, boot back into your old linux as described. Then go to
694     <uri link="/doc/en/handbook/handbook-x86.xml?part=1&amp;chap=4">The Gentoo
695     Handbook: Preparing the Disks</uri> and follow the instructions. When
696     chrooting, use the following command to flush your environment:
697 swift 1.17 </p>
698 drobbins 1.1
699 neysx 1.32 <pre caption="Flushing the environment during chroot">
700 swift 1.39 # <i>env -i HOME=$HOME TERM=$TERM chroot /mnt/gentoo /bin/bash</i>
701 swift 1.42 # <i>/usr/sbin/env-update</i>
702 swift 1.40 # <i>source /etc/profile</i>
703 swift 1.17 </pre>
704 drobbins 1.1
705 swift 1.17 <p>
706 drobbins 1.1 Enjoy!
707     </p>
708 neysx 1.32
709 drobbins 1.1 </body>
710     </section>
711     </chapter>
712     </guide>

  ViewVC Help
Powered by ViewVC 1.1.20