Central Iowa Linux Users Group August 2019 meeting featuring the new release of Debian Buster

1. DEBIAN BUSTER
(DEBIAN IS NO
LONGER OUT OF DATE)
Andrew Denner
CIALUG
21 August 2019

2. WELCOME TO
LUG

3. Welcome
to Lug
Meetings on the 3rdWednesday of
the month
Website http://cialug.org
Email list
IRC/Slack
What do you want to hear about? Are
you interested in presenting?

4. About me
Slides will be posted at http://denner.co and emailed out
I continue to be the president?
Software developer by day, linux wrangler by night
Twitter: @adenner

5. DEBIAN
BUSTER

6. Still that new release smell
● Debian buster was released July 6, 2019
● Officially “Stable release 10”
● Replaces Stretch
● Will be supported for 5 years
● New Desktop design “Future prototype”
● Gnome Desktop 3.30
○ Now LibGTK3+
● Linux Kernel 4.19.0-4 (LTS)
● Open JDK 11.0
● App Armor (Good but perhaps pain)
● Update of nodejs 10.15.2

7. Some good some bad
● NFtables replace iptables
● Arm64 support as well as ARMHF SBC boards
● Python 2 is deprecated Long live python 3
● Mailman3
● glibc updated (need to reindex postgres )
● Bash 5.0 (more later)
● /usr/merge drama
● Secure boot support
● Calamares live installer
● Wayland by default (but xorg is still available also can use xwayland)
● 67% of packages have been updated

8. /usr/merge
For various historical reasons, the linux file
system is a mess… is your exe in /bin /usr/bin
/sbin /usr/sbin?Who knows!
Should be compatible but be aware of edge
cases
/bin → /usr/bin
/sbin → /usr/sbin
/lib → /usr/lib
/lib64 → /usr/lib64

9. Bash 5.0
BUG FIXES (OF
COURSE)
INCLUDING
FUZZ TESTED
MEMORY
ISSUES
CHANGES TO
$@ AND $* TO
MAKE THEM
MORE POSIX
COMPLIENT
NEW
VARIABLES
BASH_ARGV0,
EPOCHSECON
DS AND
EPOCHREALTI
ME
HISTORY
IMPROVEMENT
S (NEGATIVE
OFFSETS AND
REMOVE
RANGES OF
HISTORY)
GLOBALASCIIR
ANGES SHELL
OPTION IS
NOW ENABLED
BY DEFAULT
BASH_ARGC
AND
BASH_ARGV IS
SET AT
STARTUP IF
EXTENDED
DEBUGGING IS
ENABLED
(NEVER
SHOULD HAVE
BEEN ALWAYS)
CHECK WITH
BASH –
VERSION TO
SEE WHAT
VERSION

10. INSTALL PROCESS