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multiuser_1.8
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emergency
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emergency.doc
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1995-02-27
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45 lines
This file tells you how to create an emergency boot disk which will give
you a root shell if you boot from it, without the need to know the root
password (but you must have access to the keyfiles while creating this
disk!). However, this will only work if all keyfiles are still intact!
o Format a floppy and make it bootable using the 'Install' command.
o Copy the necessary files on it so it's directory tree looks like this:
C (dir)
Assign
CLI
Mount
Devs (dir)
DOSDrivers (dir)
MU0
S (dir)
Startup-Sequence
.MultiUser.keyfile
o The files 'MU0' and 'Startup-Sequence' can be found in the
'Emergency/Devs/DOSDrivers' and 'Emergency/S/Startup-Sequence'
directories respectively. The file '.MultiUser.keyfile' can be found
on any partition you did protect with MultiUser. The other files
should reside on your Workbench partition.
o Edit the file '.MultiUser.keyfile' and make the second and third line
empty; do NOT remove these lines, they must exist but be empty! This
keyfile is the key of your system.
o Edit the file 'S/Startup-Sequence' and apply the changes mentioned in
the comments.
o Make 'C/CLI' owned by root using the 'SetOwner' command.
o Set the set uid bit ('U') for 'C/CLI' and make it readable for everyone
using the 'MProtect' command.
o Test your emergency boot disk.
o Keep the disk in a safe place!
Special thanks to Ingolf Koch for the inspiration.