To comply with the FSSTND the following directories, or symbolic links to directories, are required in /.
/bin Essential command binaries /boot Static files of the boot loader /dev Device files /etc Host-specific system configuration /lib Essential shared libraries and kernel modules /media Mount point for removeable media /mnt Mount point for mounting a filesystem temporarily /opt Add-on application software packages /sbin Essential system binaries /srv Data for services provided by this system /tmp Temporary files /usr Secondary hierarchy /var Variable data
The following directories, or symbolic links to directories, must be in /, if the corresponding subsystem is installed:
/ -- the root directory /home User home directories (optional) /lib<qual> Alternate format essential shared libraries (optional) /root Home directory for the root user (optional)
Each directory listed above is described in detail in separate subsections further on in this document.
The reference system will be based upon Debian 3.0r0 (Woody), 2.4.18 kernel configured to a Redhat kernel-2.4.18-i686.config file.
Intel Celeron 766 Processor
MSI MS-6309 V.2.0 Mainboard
512MB PQI PC133 SDRAM
16x Lite-On LTD-165H DVD-ROM
40x24x10 Sony CRX175A1 CD-RW
NVIDIA RIVA 32MB TNT2 M64
D-Link DFE-530TX 10/100 NIC
Realtek RTL8029(AS) 10 NIC
Lucent Mars2 Linmodem
C-Media CMI8738 PCI Audio Device
Miro DC-30 VIVO
Aopen KF-45A Miditower Case
Acer Accufeel Keyboard
Genius Netscroll+ Mouse
Compaq MV500 Presario Monitor
Windows XP on /dev/hda1
FreeBSD 4.2 on /dev/hda2
Redhat 8.0 on /dev/hda5
Debian 3.0r0 on /dev/hda6
Mandrake 9.1 on /dev/hda7
Swap partition on /dev/hda8
As we all know Linux file system starts with /, the root directory. All other directories are 'children' of this directory. The partition which the root file system resides on is mounted first during boot and the system will not boot if it doesn't find it. On our reference system, the root directory contains the following sub-directories:
bin/ dev/ home/ lost+found/ proc/ sbin/ usr/ cdrom/ opt/ vmlinuz boot/ etc/ lib/ mnt/ root/ tmp/ var/ dvd/ floppy/ initrd/ /tftpboot
In days past it was also the home directory of 'root' but now he has been given his own directory for reasons that will be explained further on in this document.