49 lines
1.7 KiB
Text
49 lines
1.7 KiB
Text
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testing cinit in a User-Mode-Linux (uml),
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Nico Schottelius 2005-06-14 (Last Modified: 2005-06-14)
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1. Get an image you want to install cinit to
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2. Compile an UML
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3. change bin/cinit.uml.test to your needs
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4. put a configuration (/etc/cinit) on to your image
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5. ./bin/cinit.uml.test
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-> wait, your Linux starts with cinit enabled.
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If you omit 4, you'll see how cinit will fail without having its base
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directory.
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Using a raw (x86) hd image:
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Access partition 1 via losetup:
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sudo losetup -o 32256 /dev/loop0 "$hierabs/debian-hd.img"
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linux ubd0=/dev/loop0 init=/sbin/cinit "$@"
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Offset was taken from fdisk:
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[19:22] denkbrett:emu# fdisk -l -u /dev/sda
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Disk /dev/sda: 80.0 GB, 80026361856 bytes
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255 heads, 63 sectors/track, 9729 cylinders, total 156301488 sectors
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Units = sectors of 1 * 512 = 512 bytes
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Disk identifier: 0x1669c708
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Device Boot Start End Blocks Id System
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/dev/sda1 63 19535039 9767488+ 83 Linux
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/dev/sda2 19535040 23438834 1951897+ 82 Linux swap / Solaris
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/dev/sda3 23438835 156296384 66428775 83 Linux
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===> 63*512bytes spaeter beginnt sda1
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[19:23] denkbrett:~% echo 512\*63 |bc -l
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32256
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Results in losetup -o 32256 /dev/loop0 ./debian-hd.img
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Scripts from the nsbin project (lo-*) can be used.
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It can be found at http://unix.schottelius.org/cgi-bin/gitweb.cgi.
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