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70 lines
2.8 KiB
Plaintext
70 lines
2.8 KiB
Plaintext
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This is a quick and dirty script to convert a floppyfw floppy
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(http://www.zelow.no/floppyfw/) to a tagged image for booting with
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Etherboot (http://etherboot.sourceforge.net/). The advantages of network
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booting include: it's much faster loading from the network than from a
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floppy disk, you can boot from any size floppy, and you are not limited
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to the maximum of 1.44 MB of the physical floppy. If you have enough RAM
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and use a virtual floppy to build the initial boot image, you can put as
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much on it as will fit the ramdisk.
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See further down under -nonet if you want to boot from HD or CDROM.
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This program requires mtools, tar, bzip2, loopback mount in the kernel,
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and root privileges to execute. Hope you have them.
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This script works for any of the releases for which a subdirectory of
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that name is provided, but it should not be too hard to make it work for
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other releases, all that is done here is to substitute some scripts for
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the distributed ones.
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First of all you should make the floppy work the way you want before
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converting it to a tagged image. This involves editing the various
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config files on the floppy. Instructions on this are distributed from
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the floppyfw web page mentioned above.
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Edit the $tftpdir assignment for the directory where you put your tagged
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images. Edit the $libdir assignment and the use lib directive near the
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top if you decide to put this package somewhere other than
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/usr/local/lib/mkffwnb/. Adjust the instructions below as necessary.
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Copy everything to $libdir.
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mkdir -p /usr/local/lib/mkffwnb/
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cp -a . /usr/local/lib/mkffwnb/
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Make a link from /usr/local/lib/mkffwnb/mkffwnb.pl to
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/usr/local/bin/mkffwnb so that it's in your path.
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ln -s /usr/local/lib/mkffwnb/mkffwnb.pl /usr/local/bin/mkffwnb
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Then run it as:
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mkffwnb
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You can also provide a floppy drive as an argument, e.g.
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mkffwnb x:
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where x: could be mapped to a disk file. This allows you to build an
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image without a real floppy drive. Remember that for virtual drives root
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must have the mapping for the drive in question in ~root/.mtoolsrc.
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You can use the option --localtime=/etc/localtime to specify that the
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file /etc/localtime is to be copied to /etc/localtime on the initrd.
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Instead of /etc/localtime, you can use any of the timezone files under
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/usr/share/zoneinfo/, it's just that /etc/localtime will usually be the
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correct one for your timezone.
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If you use the option -nonet, it leaves the intermediate files in
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$tempdir, /tmp/mkffwnb by default. This is useful if you want the
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vmlinuz and initrd.gz files for use with LILO or isolinux to boot from
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HD or CDROM. Actually you can also use these with a floppy, it loads
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faster if you fold all the scripts and modules into the initrd ahead
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of time.
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mkffwnb has to be run as root because it uses loopback mounts and also
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because the files inside the initrd are owned by root.
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Ken Yap
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2003-04-20
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