Re: [gentoo-user] empty cdrom drive is busy or mounted

[Helmut Jarausch <jarausch@skynet.be>]

On 08/16/2019 05:25:34 PM, Jack wrote:
> try "lsof /cdrom"?  It says the mount point, not the device, might be  
> busy.


This didn't show anything.
I still don't know the cause of my problems.
But fortunately, they have been resolved by recompiling the kernel  
(5.2.0),
systemd and all packages depending on systemd - using the new gcc-9.2.0

Furthermore I had to add the use flags
cgroup-hybrid -sysv-utils
for systemd. This hasn't been necessary before - very strange.
For me, systemd is a monster which I haven't understood.
I try to not use it since I am using openrc.
Perhaps I have to remove it from my system and use eudev instead of  
udev as part of systemd.

Thanks for trying to help me - it was a really strange situation.

> On 8/16/19 10:23 AM, Helmut Jarausch wrote:
>> Hi,
>> 
>> I have a very strange effect on my Gentoo system.
>> First, I've check that /dev/sr0 points to the correct device (from  
>> dmesg)
>> 
>> For an empty drive  I get
>> 
>> 1 # mount /dev/sr0 /cdrom
>> mount: /cdrom: /dev/sr0 already mounted or mount point busy.
>> 
>> 2 # lsof /dev/sr0
>> 
>> 3 # umount /dev/sr0
>> umount: /dev/sr0: not mounted.
>> 
>> 
>> Does anybody know what's going on here?
>> 
>> Many thanks for a hint.
>> 
>> P.S. I have checked this with two physically different drives.
>> 
>> 
>> 
> 
>