when i use the command "gpasswd" as root
my laptop shows as follows:

New Password:
Re-enter new password:
gpasswd:salt.c:175:gensalt:Assertion'salt_size>=8&&salt_size<=16' failed.
Aborted

what's wrong with the command ?Or it's resulted from other PROBLEM?
please help me!

ps:my os is fedro 9!

Hi there,

I hadn't known the gpasswd tool until just now, and I still don't know what it's supposed to do. But that ...

... looks like a problem inside gpasswd's hash function. It may have to do with the length of the password, but that's just a wild guess.

You mean Fedora 9?
I hope that's just a typing mistake and you mean in fact Fedora 19, because Fedora 9 is dead as a dodo, it was dismissed five years ago.

[X] Doc CPU

you might want to READ the man page
there is NO gui
it is a terminal program , you NEED to include options

and if this IS fedora 9
it is 11 versions out of date
the current is fedora 20

My os is actaully fedora 9 !Because my computer is rather old and i have to install a low-level os.

I also try to restrict my password according to the message "8<passord<16".

Perhaps you are right, i don't ask the right question ,but i really don't understand the problem

fedora 9 is MISSING the last 5 YEARS of security FIXES
it is wide open to EVERY KNOWN AND FIXED SECURITY HOLE
-- DO NOT USE !!!!! ---

if you need o OS that is supported and on OLD very low resource hardware
the free CentOS 5.10 will run very well on 512 meg of ram
and 5.10 has 4 years of support left

or
Centos 6.5 using xfce desktop will run on 512 meg of ram


it is NEVER a good idea to use a unsupported operating system
it is like trying to use Win95 or 98 TODAY .

yeah,you are right .
perhaps i should explain my reason. currently i just use the os to learn the LINUX,because i live in china
and the fedora is popular here and there are mang formus and websites about fedora that i can turn to for help.In fact, my english is very poor and it is hard for me to understand the mannual sometimes

so i chose the fedora 9,just for learnning.

thanks for your help and alertion

all the antique software for 9 is no longer on the web
yum is 100% useless , you might as well uninstall yum
you will almost NEVER be able to use it .
there are only 10 mirrors( out of a few hundred) that have the old fedora 9 rpm's
and those are the install cd software from 2008
http://dl.fedoraproject.org/pub/arch...6/os/Packages/

there is NOTHING to install on fedora 9
you have to use Firefox 3 ( yes 3 !!!!)
PS firefox 30 is the current
the version of firefox in fedora 9 is 27 VERSIONS OUT OF DATE

install the FREE
CentOS 5.10 or 6.5
they are supported and will run on older hardware

maybe i will try

Back to the original question...

The "gpasswd" does NOT have anything to do with passwords. It lets you add and remove users to groups.

EDIT: nope, I'm wrong, see below

I am afraid that you are wrong !

The "gpasswd" can set passwords for a group !

The method is "gpasswd groupname"

I stand corrected... I had only used it to add users to groups... apparently I still have a lot of learning to do!

no more than you!