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- From: mdw@db.TC.Cornell.EDU (Matt Welsh)
- Subject: LILO Quick Start Guide
- Message-ID: <1993Jan4.221031.7124@tc.cornell.edu>
- Followup-To: poster
- Keywords: LILO start quick fun
- Sender: news@tc.cornell.edu
- Nntp-Posting-Host: db.tc.cornell.edu
- Organization: Jim's Burger Hut
- Date: Mon, 4 Jan 1993 22:10:31 GMT
- Approved: linux-announce@tc.cornell.edu (Matt Welsh)
- Lines: 128
-
- [Yep, I'm posting this to c.o.l.a, because this is one of those things that
- 'everyone should see'. I encourage other postings of this nature. -mdw]
-
- LILO: QUICK START GUIDE/FAQ
- A Fun Guide by Matt Welsh (mdw@tc.cornell.edu)
- Thanks a lot to makis@helios.unl.edu.
-
- I see lots of people who are having problems getting LILO set up on their
- system. Basically, LILO will let you boot MS-DOS, Linux, or whatever you
- want on different partitions on your drive, and let you choose at bootup
- time what partition to boot. But, LILO does *much* more than just this,
- and that's why the docs are rather long and detailed. I think what a lot
- of people use for LILO for is chooing between something like MS-DOS and
- Linux at bootup time on their hard drives. So, here's a "quick start" guide
- to give you the scoop on how to do this with LILO.
-
- You need the most recent version of LILO (version 7), and a kernel that's
- at least 0.97.pl2. You can get LILO.7 on tsx-11 or Sunsite, they're pretty
- easy to find. I don't know what version of LILO is on the current SLS
- release.
-
- The LILO.7 package contains the sources only. You need to do a 'make' to
- compile the programs and a 'make install' to copy LILO to the directory
- /etc/lilo on your system.
-
- You need to create the following files in /etc/lilo:
- - config (tells LILO how to set up your boot record)
- - disktab (tells LILO about the physical partitions that
- you're booting)
- - install (runs LILO on the 'config' program)
-
- In the file /etc/lilo/config, you have stanzas for each partition that you
- want to boot, giving the partition name, the file to boot from, and so on.
- At the top of the config files you specify the drive to boot, the map file
- and boot file to use (which should be /etc/lilo/map and /etc/lilo/boot.b,
- respectively), and other global options.
-
- Here's what my /etc/lilo/config files looks like. The notes after '#'
- are comments.
-
- -------------------------------------------------------------------------------
- # Tell LILO to set the boot record on the drive /dev/hda. If you boot
- # from a drive other than /dev/hda, set it here instead.
- boot = /dev/hda
-
- # Tell LILO to perform some optimization.
- compact
-
- # Tell LILO to use the boot file /etc/lilo/boot.b. Unless you're hacking
- # things heavily this is the only boot file you want to use.
- install = /etc/lilo/boot.b
-
- # Tell LILO to use the map file /etc/lilo/map. The map file tells LILO where
- # to look for partitions, and it's updated when you run LILO. You can give
- # any name you want here, but /etc/lilo/map is the canonical name.
- map = /etc/lilo/map
-
- # This stanza tells LILO to boot the file /Image on /dev/hda2, using the label
- # 'linux'. Since it's the first boot entry here, it's also the default.
- image = /Image
- label = linux
- root = /dev/hda2
-
- # This stanza is for an 'old' kernel image in the file /Image.old, on
- # /dev/hda2. This is for backup purposes... if you build a new kernel and
- # it won't boot for some reason, you can copy your old kernel to /Image.old
- # and boot from it.
- image = /Image.old
- label = linux-old
- root = /dev/hda2
-
- # This stanza is for booting MS-DOS from /dev/hda1.
- other = /dev/hda1 # this is for the msdos partition
- table = /dev/hda
- label = msdos
- -------------------------------------------------------------------------------
-
-
- This is the file /etc/lilo/install. You run this to install LILO (not the
- same thing as doing a 'make install', which only copies the LILO software to
- /etc/lilo).
-
- -------------------------------------------------------------------------------
- #!/bin/sh
- /etc/lilo/lilo -C /etc/lilo/config $@
- -------------------------------------------------------------------------------
-
- And here's the file /etc/lilo/disktab, where you put an entry for each
- partition and drive you plan to boot (in this case, one each for /dev/hda,
- /dev/hda1, and /dev/hda2). The given device numbers (0x300, etc) are for
- IDE drives; for SCSI drive you use 0x800, 0x801, and so on (I think-- check
- the full LILO documentation). The sec/track and other information is given
- by your machine's CMOS (and fdisk may be able to give it to you as well, if
- you don't remember it offhand). The partition offset if given by Linux at
- bootup time.
-
- Note that you only need to describe partitions in this table that you plan
- to boot from. Also, you don't need any entries for floppies if you use LILO
- to boot from floppy.
-
- See the full LILO docs to figure out what you should put in this table!
-
- -------------------------------------------------------------------------------
- # Dev. BIOS Secs/ Heads/ Cylin- Part.
- # num. code track cylin. ders offset
- 0x300 0x80 17 10 980 0 # /dev/hda
- 0x301 0x80 17 10 980 17 # /dev/hda1
- 0x302 0x80 17 10 980 23630 # /dev/hda2
- -------------------------------------------------------------------------------
-
- This works for me, but I don't guarantee it will work for you. If you've done
- everything right running /etc/lilo/install should install LILO and Voila!
- you can boot from your hard drive. LILO will boot by default the first
- partition given in the config file; if you hold down shift, capslock, or
- control at boot time Lilo will ask you what partition you want to boo (by
- name, such as "linux", "old-linux", and so on). There are MANY other options
- and things you can do in the config file; this is just a basic setup.
-
- Werner's put a lot of work into this program, and it shows... this quickie
- doc should get you started. NOW go back and read the full LILO documentation
- to make sure you understand everything, keeping the above in mind.
-
- Good luck!
-
- mdw
- --
- Matt Welsh mdw@tc.cornell.edu Cornell Theory Center
- "It's a Katana, ya Midwestern computer geek." --Tom Payne
-