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Full Discussion: How to create a file even root user also cant delete?
Top Forums UNIX for Dummies Questions & Answers How to create a file even root user also cant delete? Post 302891874 by Perderabo on Saturday 8th of March 2014 08:07:58 PM
Old 03-08-2014
Back in the 80's I worked for a company that had source code licenses to System V Unix and HP-UX. Management, in their wisdom, had decreed that the software developers had access to root. I put the source code on a read-only partition. This protected it from programmers that sat all day in a root shell and always used "vi" rather than "view". They were clueless but not malicious.

My current employer works with some US government agencies and one of them examined a linux system prior to being connected to closed network. One of the changes they demanded was for me to set the immutable flag on grub.conf. So I did. And yes, root can turn off the flag, change the file, then turn the flag back on. I also thought that grub.conf was odd choice to be the only file needing extra protection.
 

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LEARN ABOUT SUSE

grub-install.unsupported

GRUB-INSTALL(8) 							FSF							   GRUB-INSTALL(8)

NAME

       grub-install - install GRUB on your drive

SYNOPSIS

       grub-install [OPTION] install_device

DESCRIPTION

       Install GRUB on your drive.

       -h, --help
	      print this message and exit

       -v, --version
	      print the version information and exit

       --root-directory=DIR
	      install GRUB images under the directory DIR instead of the root directory

       --grub-shell=FILE
	      use FILE as the grub shell

       --no-floppy
	      do not probe any floppy drive

       --force-lba
	      force GRUB to use LBA mode even for a buggy BIOS

       --recheck
	      probe a device map even if it already exists

       INSTALL_DEVICE can be a GRUB device name or a system device filename.

       grub-install  copies GRUB images into the DIR/boot directory specfied by --root-directory, and uses the grub shell to install grub into the
       boot sector.

       The grub source distribution carries this script to ease the installation of grub as a boot loader. In Suse Linux however,  grub  installa-
       tion  is  much  better handled by Yast; use of this script is generally discouraged and therefore unsupported. Consequently, the script has
       been renamed to grub-install.unsupported.

       In order to (re-)install grub for the currently running system, simply use Yast. For an installation aiming  at	a  differing  system,  the
       crafting  of an appropriate device.map and grub shell script is strongly advised, e.g.  "grub --batch --device-map=target-device.map < tar-
       get-grub.conf"

SEE ALSO

       The full documentation for grub-install is maintained as a Texinfo manual.  If the info and grub-install programs are properly installed at
       your site, the command

	      info grub-install

       should give you access to the complete manual.

grub-install (GNU GRUB 0.97)					     May 2005							   GRUB-INSTALL(8)
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