SETUP(8)

NAME
setup - Install MINIX 3 on a hard disk

SYNOPSIS
setup

DESCRIPTION

This appendix explains how to install MINIX 3. Standard MINIX 3 requires a Pentium (or compatible) with at least 16-MB of RAM, at least 200-MB of free disk space, an IDE CD-ROM and an IDE hard disk. Serial ATA, USB, and SCSI disks are not supported at present. For USB CD-ROMS, see the Website: www.minix3.org. PREPARATION

If you already have the CD-ROM (e.g., from the book), you can skip steps 1 and 2, but it is wise to check www.minix3.org to see if a newer version is available. If you want to run MINIX 3 on a simulator instead of native, see Part V first. If you do not have an IDE CD-ROM, either get the special USB CD-ROM boot image or use a simulator. Download the MINIX 3 CD-ROM image from the MINIX 3 Website at www.minix3.org. Decompress the downloaded file. You will get a CD-ROM image file with extension .iso and this manual. The .iso file is a bit-for-bit CD-ROM image. Burn it to a CD-ROM to make a bootable CD-ROM.

If you are using Easy CD Creator 5, select Record CD from CD image from the File menu and change the file type from .cif to .iso in the dialog box that appears. Select the image file and click Open. Then click Start Recording.

If you are using Nero Express 5, choose Disc Image or Saved Project and change the type to Image Files, select the image file and click Open. Select your CD recorder and click on Next.

If you are running Windows and do not have a CD-ROM burning program, take a look at
alexfeinman.brinkster.net/isorecorder.htm
for a free one and use it to create a CD image.

MINIX 3 supports several Ethernet chips for networking over LAN, ADSL, and cable. These include Intel Pro/100, RealTek 8029 and 8139, AMD LANCE, and several 3Com chips. During setup you will be asked which Ethernet chip you have, if any. Determine that now by looking at your documentation. Alternatively, if you are using Windows, go to the device manager as follows:

Windows 2000:
Start> Settings> Control Panel> System> Hardware> Device Mgr

Windows XP:
Start> Control Panel> System> Hardware> Device Mgr

System requires double clicking; the rest are single. Expand the + next to Network adapters to see what you have. Write it down. If you do not have a supported chip, you can still run MINIX 3, but without Ethernet.

You can boot the computer from your CD-ROM if you like and MINIX 3 will start, but to do anything useful, you have to create a partition for it on your hard disk. But before partitioning, be sure to back up your data to an external medium like CD-ROM or DVD as a safety precaution, just in case something goes wrong. Your files are valuable; protect them.

Unless you are sure you are an expert on disk partitioning with much experience, it is strongly suggested that you read the online tutorial on disk partitioning at www.minix3.org/doc/partitions.html. If you already know how to manage partitions, create a contiguous chunk of free disk space of at least 200 MB (even better: 400 MB or more). If you do not know how to manage partitions but have a partitioning program like Partition Magic, use it to create a region of free disk space of at least 200 MB. Also make sure there is at least one primary partition (i.e., Master Boot Record slot) free. The MINIX 3 setup script will guide you through creating a MINIX partition in the free space, which can be on either the first or second IDE disk.

If you are running Windows 95, 98, ME, or 2000 and your disk consists of a single FAT partition, you can use the presz134.exe program on the CD-ROM (also available at zeleps.com) to reduce its size to leave room for MINIX. In all other cases, please read the online tutorial cited above.

WARNING: If you make a mistake during disk partitioning, you can lose all the data on the disk, so be sure to back it up to CD-ROM or DVD before starting. Disk partitioning requires great care, so proceed with caution. BOOTING

By now you should have allocated at least 200 MB of free space on your disk. If you have not done so yet, please do it now unless there is an existing 200-MB (or larger) partition you are willing to convert to MINIX 3. Insert the CD-ROM into your CD-ROM drive and boot the computer from it. If you have 16 MB of RAM or more, choose Regular; if you have only 8 MB choose small. If the computer boots from the hard disk instead of the CD-ROM, boot again and enter the BIOS setup program to change the order of boot devices, putting the CD-ROM before the hard disk. When the login prompt appears, login as root. After a successful login as root, you will see the shell prompt (#). At this point you are running fully-operational MINIX 3. If you type:

   ls /usr/bin | more

you can see what software is available. Hit space to scroll the list. To see what program foo does, type:

   man foo

The manual pages are also available at
www.minix3.org/manpages. To start the installation of MINIX 3 on the hard disk, type

   setup

After this and all other commands, be sure to type ENTER (RETURN). When the installation script ends a screen with a colon, hit ENTER to continue. If the screen suddenly goes blank, press CTRL-F3 to select software scrolling (should only be needed on very old computers). Note that CTRL-key means depress the CTRL key and while holding it down, press key. INSTALLING TO THE HARD DISK

These steps correspond to the steps on the screen. When you are asked to select your national keyboard, do so. This and other steps have a default choice, in square brackets. If you agree with it, just hit ENTER. In most steps, the default is generally a good choice for beginners. The us-swap keyboard interchanges the CAPS LOCK and CTRL keys, as is conventional on UNIX systems. You will now be asked which of the available Ethernet driver you want installed (or none). Please choose one of the options. If you are tight on disk space, select M for a minimal installation which includes all the binaries but only the system sources installed. 200 MB is enough for a bare-bones system. If you have 400 MB or more, choose F for a full installation. You will first be asked if you are an expert in MINIX 3 disk partitioning. If so, you will be placed in the part program to give you full power to edit the Master Boot Record (and enough rope to hang yourself). If you are not an expert, press ENTER for the default action, which is an automated step-by-step guide to formatting a disk partition for MINIX 3. Substep 4.1: Select a disk to install MINIX 3

An IDE controller may have up to four disks. The setup script will now look for each one. Just ignore an error messages. When the drives are listed, select one. and confirm your choice. If you have two hard disks and you decide to install MINIX 3 to the second one and have trouble booting from it, please see www.minix3.org/doc/using2disks.html for the solution. Substep 4.2: Select a disk region

Now choose a region to install MINIX 3 into. You have three choices:

   (1) Select a free region
   (2) Select a partition to overwrite
   (3) Delete an existing partition to free up space and merge with adjacent free space

For choices (1) and (2), type the region number. For (3) type

   delete

then give the region number when asked. This region will be overwritten and its previous contents lost forever. Substep 4.3: Confirm your choices

You have now reached the point of no return. You will be asked if you want to continue. If you do, the data in the selected region will be lost forever. If you are sure, type:

   yes

and then ENTER. To exit the setup script without changing the partition table, hit CTRL-C. If you chose an existing MINIX 3 partition, in this step you will be offered a choice between a Full install, which erases everything in the partition, and a Reinstall, which does not affect your existing /home partition. This design means that you can put your personal files on /home and reinstall a newer version of MINIX 3 when it is available without losing your personal files. The selected partition will be divided into three subpartitions: root, /usr, and /home. The latter is for your own personal files. Specify how much of the partition should be set aside for your files. You will be asked to confirm your choice. Disk block sizes of 1-KB, 2-KB, 4-KB, and 8-KB are supported, but to use a size larger than 4-KB you have to change a constant and recompile the system. If your memory is 16 MB or more, use the default (4 KB); otherwise, use 1 KB. The setup script will now scan each partition for bad disk blocks. This will take several minutes, possibly 10 minutes or more on a large partition. Please be patient. If you are absolutely certain there are no bad blocks, you can kill each scan by hitting CTRL-C. When the scan finishes, files will be automatically copied from the CD-ROM to the hard disk. Every file will be announced as it is copied. When the copying is complete, MINIX 3 is installed. Shut the system down by typing

   shutdown

Always stop MINIX 3 this way to avoid data loss as MINIX 3 keeps some files on the RAM disk and only copies them back to the hard disk at shutdown time. TESTING

This section tells you how to test your installation, rebuild the system after modifying it, and boot it later. To start, boot your new MINIX 3 system. For example, if you used controller 0, disk 0, partition 3, type

   boot c0d0p3

and log in as root. Under very rare conditions the drive number seen by the BIOS (and used by the boot monitor) may not agree with the one used by MINIX 3, in which case try other drive numbers. This is a good time to create a root password. See man passwd for help. To test MINIX 3, at the command prompt (#) type

   cd /usr/src/test
   make

and wait until it completes all 40 compilations. Log out by typing CTRL-D, To test the system, log in as bin (required) and type

   cd /usr/src/test
   ./run

to run the test programs. They should all run correctly but they can take 20 min on a fast machine and over an hour on a slow one. Note: It is necessary to compile the test suite when running as root but execute it as bin in order to see if the setuid bit works correctly. If all the tests work correctly, you can now rebuild the system. Doing so is not necessary since it comes prebuilt, but if you plan to modify the system, you will need to know how to rebuild it. Besides, rebuilding the system is a good test to see if it works. Type:

   cd /usr/src/tools
   make

to see the various options available. Now make a new bootable image by typing

   su
   make clean
   time make image

You just rebuilt the operating system, including all the kernel and user-mode parts. That did not take very long, did it? To update the boot image currently installed on the hard disk, type

   make hdboot

To boot the new system, first shut down by typing:

   shutdown

This command saves certain files and returns you to the MINIX 3 boot monitor. To get a summary of what the boot monitor can do, while in it, type:

   help

For more details, see www.minix3.org/manpages/man8/boot.8.html. You can now remove any CD-ROM or floppy disk and turn off the computer.

If you have a legacy floppy disk drive, the simplest way to boot MINIX 3 is by inserting your new boot floppy and turning on the power. It takes only a few seconds. Alternatively, boot from the MINIX 3 CD-ROM, login as bin and type:

   shutdown

to get back to the MINIX 3 boot monitor. Now type:

   boot c0d0p0

to boot from the operating system image file on controller 0, driver 0, partition 0. Of course, if you put MINIX 3 on drive 0 partition 1, use:

   boot c0d0p1

and so on.

A third possibility for booting is to make the MINIX 3 partition the active one, and use the MINIX 3 boot monitor to start MINIX 3 or any other operating system. For details see www.minix3.org/manpages/man8/boot.8.html.

Finally, a fourth option is for you to install a multiboot loader such as LILO or GRUB (www.gnu.org/software/grub). Then you can boot any of your operating systems easily. Discussion of multiboot loaders is beyond the scope of this guide, but there is some information of the subject at www.minix3.org/doc. USING A SIMULATOR

A completely different approach to running MINIX 3 is to run it on top of another operating system instead of native on the bare metal. Various virtual machines, simulators, and emulators are available for this purpose. Some of the most popular ones are:
   • VMware (www.vmware.com)
   • Bochs (www.bochs.org)
   • QEMU (www.qemu.org)

See the documentation for each of them. Running a program on a simulator is similar to running it on the actual machine, so you should go back to Part I and acquire the latest CD-ROM and continue from there.