Dosbox fun and Linux PDFS.

I have tried out the old Doom.exe in Dosbox and I had to patch the Doom.exe to the Ultimate Doom version to be able to get access to all the episodes and I copied the Doom2.exe v1.9 to the folder with the other files and then after getting help in this thread, I was able to use the patch and upgrade the Doom2.exe to the Ultimate Doom code and then run it and see the changes. Older games like this are very interesting, seeing the way that you could mix and match game executables between game versions like this and have them still work. Dosbox is a very good DOS emulator that allows computer users to run very old DOS applications on modern computers easily. You could also use QEMU and a disk image of DOS I would assume, but Dosbox is easier indeed. Shown below is my /etc/group file. I have added my username homer to the video group, which allows me to play videos on the text console, this works without any problems in Linux Mint 11.


root:x:0:
daemon:x:1:
bin:x:2:
sys:x:3:
adm:x:4:homer
tty:x:5:
disk:x:6:
lp:x:7:
mail:x:8:
news:x:9:
uucp:x:10:
man:x:12:
proxy:x:13:
kmem:x:15:
dialout:x:20:homer
fax:x:21:
voice:x:22:
cdrom:x:24:homer
floppy:x:25:
tape:x:26:
sudo:x:27:
audio:x:29:pulse,timidity
dip:x:30:
www-data:x:33:
backup:x:34:
operator:x:37:
list:x:38:
irc:x:39:
src:x:40:
gnats:x:41:
shadow:x:42:
utmp:x:43:
video:x:44:homer
sasl:x:45:
plugdev:x:46:homer
staff:x:50:
games:x:60:
users:x:100:
nogroup:x:65534:
libuuid:x:101:
crontab:x:102:
syslog:x:103:
fuse:x:104:
messagebus:x:105:
mlocate:x:106:
ssh:x:107:
avahi-autoipd:x:108:
avahi:x:109:
netdev:x:110:
bluetooth:x:111:
lpadmin:x:112:homer
ssl-cert:x:113:
gdm:x:114:
nopasswdlogin:x:115:
pulse:x:116:
pulse-access:x:117:
utempter:x:118:
rtkit:x:119:
admin:x:120:homer
saned:x:121:
sambashare:x:122:homer
homer:x:1000:
timidity:x:123:
guest:x:124:
winbindd_priv:x:125:
haldaemon:x:126:
powerdev:x:127:
shoggoth:x:1001:


The /etc/group file is a good way to control what your users have access to on the Linux/UNIX system. As you can see, the timidity MIDI player package is installed and has added the timidty user to the audio group allowing it to get access to the audio playback hardware.

Some Linux tutorial PDFs. I uploaded this series of Linux tutorial PDFs a while ago and I thought I would link to them again, as they are very good at teaching the use and inner workings of the Linux operating system.

• Mastering Linux Pt1.pdf
• Mastering Linux Pt2.pdf
• Mastering Linux Pt3.pdf
• Mastering Linux Pt4.pdf
• Mastering Linux Pt5.pdf
• Mastering Linux Pt6.pdf
• Mastering Linux Pt7.pdf
• Mastering Linux Pt8.pdf
• Mastering Linux Pt9.pdf
• Mastering Linux Pt10.pdf
• Mastering Linux Pt11.pdf
• Mastering Linux Pt12.pdf
• Mastering Linux Pt13.pdf
• Mastering Linux Pt14.pdf
• Mastering Linux Pt15.pdf
• Mastering Linux Pt16.pdf
• Mastering Linux Pt17.pdf
• Mastering Linux Pt18.pdf
• Linux cheat sheet.
• Mythbuntu_8.10_installation.pdf