[GUFSC] Para guardar -- recomendacoes....

[Altamir Dias]

11.3 Linux Devices

In Linux you have various special files in /dev. These files are called 
devices files. In the Unix world accessing hardware is different. There 
you have a special file which actually runs a driver which in turn 
accesses the hardware. The device file is an interface to the actual 
system component. Files under /dev also behave differently than ordinary 
files. Below are the most important device files listed.

      fd0	First Floppy Drive
      fd1	Second Floppy Drive

      hda	IDE Hard disk / CD-ROM on the first IDE port (Master)
      hdb	IDE Hard disk / CD-ROM on the first IDE port (Slave)
      hdc	IDE Hard disk / CD-ROM on the second IDE port (Master)
      hdd	IDE Hard disk / CD-ROM on the second IDE port (Slave)
      hda1	First partition of the first IDE hard disk
      hdd15	Fifteenth partition of the fourth IDE hard disk

      sda	SCSI Hard disk with lowest SCSI ID (e.g. 0)
      sdb	SCSI Hard disk with next higher SCSI ID (e.g. 1)
      sdc	SCSI Hard disk with next higher SCSI ID (e.g. 2)
      sda1	First partition of the first SCSI hard disk
      sdd10	Tenth partition of the fourth SCSI hard disk

      sr0	SCSI CD-ROM with the lowest SCSI ID
      sr1	SCSI CD-ROM with the next higher SCSI ID

      ttyS0	Serial port 0, COM1 under MS-DOS
      ttyS1	Serial port 1, COM2 under MS-DOS
      psaux	PS/2 mouse device
      gpmdata	Pseudo device, repeater data from GPM (mouse) daemon

      cdrom	Symbolic link to the CD-ROM drive
      mouse	Symbolic link to the mouse device file

      null	everything pointed to this device will disappear
      zero	one can endlessly read zeros out of this device




11.4 Disk Space Needed for Tasks

The base woody installation on the author's computer required 117MB. The 
installed size for all standard packages was 123MB, with a download size 
of 38MB; so 278MB of space was needed to install the base and all 
standard packages.

The following table lists sizes reported by aptitude (a very nice 
program, by the way) for the tasks listed in tasksel. The system for 
which the figures were reported already had all standard packages 
installed. Note that some tasks have overlapping constituents, so the 
total installed size for two tasks together may be less than the total 
obtained by adding the numbers up.

      Task                              Installed  Download   Space Needed
                                        Size (MB)  Size (MB)  To Install 
(MB)

      desktop environment                 345        118         463
      X window system                      78         36         114
      games                                49         14          63
      Debian Jr.                          340        124         464
      dialup system                        28          8          36
      laptop system                         3          1           4
      scientific applications             110         30         140

      C and C++                            32         15          47
      Python                              103         30         133
      Tcl/Tk                               37         11          48
      fortran                              10          4          14

      file server                           1          -           1
      mail server                           4          3           7
      usenet news server                    6          2           8
      print server                         48         18          66
      conventional unix server             55         19          74
      web server                            4          1           5

      TeX/LaTeX environment               171         64         235

      simplified Chinese environment       80         29         109
      traditional Chinese environment     166         68         234
      Cyrillic environment                 29         13          42
      French environment                   60         18          78
      German environment                   31          9          40
      Japanese environment                110         53         163
      Korean environment                  178         72         250
      Polish environment                   58         27          85
      Russian environment                  12          6          18
      Spanish environment                  15          4          19

-- 


      _/_/_/_/ _/_/_/_/_/ _/_/_/_/_/   Prof. Altamir Dias, Dr. Eng.
     _/       _/  _/  _/ _/            Departamento de Eng. Mecânica
    _/_/_/   _/  _/  _/ _/ UFSC        Universidade Federal de SC
   _/       _/  _/  _/ _/              88.040-900 - Florianópolis-SC
  _/_/_/_/ _/  _/  _/ _/_/_/_/_/       BRASIL
                                       Phone: 55-48-331-9264
                                       Fax  : 55-48-234-1519
 
http://www.emc.ufsc.br/professores/altamir/