Arch Linux

synthead

Member

Registered: 2006-05-09

Posts: 1,337

Need to create a group, what ID to use?

If I create a group in an .install file, does it matter if I set a specific group ID?  If so, how can I make sure that other packages that specify group IDs won't conflict with mine?

R00KIE

Forum Fellow

From: Between a computer and a chair

Registered: 2008-09-14

Posts: 4,734

Re: Need to create a group, what ID to use?

Maybe I'm not the best person to answer but first I would check if the group is created already (which you may be doing already) then if the group doesn't exist just create a new one like you would do in the command line and let it sort it out the id for you . I guess it really doesn't matter which id you use it only matter how you setup things afterwards but I may be wrong.

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R00KIE
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miah

Member

From: US

Registered: 2008-12-30

Posts: 4

Re: Need to create a group, what ID to use?

Synthead,

I personally would use the -r option to both useradd and groupadd, it will create a 'system' user/group based on the setting in /etc/login.defs.  If there is no setting in /etc/login.defs, I believe the default uid/gid starts at 100.  Look for SYS_UID_MIN/SYS_UID_MAX and SYS_GID_MIN/SYS_GID_MAX in login.defs(5).  But I would love to see a actual defined standard for this.  And possibly to see these variables defined in the default login.defs.  It would be nice to see the same uid for a specific daemon acrossed installs regardless of other packages installed, and without the use of a networked nss.