ZoneMinder Forums

Hi, installed ZoneMinder 1.29.0 on my synololgynas ds214se in chroot. Used the debian jessie easy instructions here https://wiki.zoneminder.com/Debian_8_64 ... e_Easy_Way

I accidentally tried the 1.30.0 instructions here (https://wiki.zoneminder.com/Debian_9_64 ... e_Easy_Way) first and then had to uninstall everything and start over with the 1.29.0. I finally got all the pieces to install and start, and I can access the web interface. I added an amcrest ip camera, but the 'source' ip address is red, and in the log it says,

2017-09-19 11:36:25.856400 zmdc 5140 ERR 'zmc -m 1' exited abnormally, exit status 255 zmdc.pl
2017-09-19 11:36:25.827515 zmc_m1 5717 FAT Can't open memory map file /dev/shm/zm.mmap.1, probably not enough space free: Permission denied zm_monitor.cpp 522
2017-09-19 11:36:25.775889 undef 5717 INF No Server ID or Name specified in config. Not using Multi-Server Mode. zm_config.cpp 139
2017-09-19 11:36:25.152120 zmdc 5717 INF 'zmc -m 1' started at 17/09/19 11:36:25 zmdc.pl
2017-09-19 11:36:25.146720 zmdc 5140 INF 'zmc -m 1' starting at 17/09/19 11:36:25, pid = 5717 zmdc.pl
2017-09-19 11:36:23.572200 zmwatch 5195 INF Restarting capture daemon for AMC001BW_3Y6893, shared data not valid zmwatch.pl
2017-09-19 11:36:23.566120 zmwatch 5195 ERR Memory map file '/dev/shm/zm.mmap.1' does not exist. zmc might not be running. zmwatch.pl
2017-09-19 11:36:13.932930 zmdc 5140 ERR 'zmc -m 1' exited abnormally, exit status 255 zmdc.pl
2017-09-19 11:36:13.922430 zmc_m1 5703 FAT Can't open memory map file /dev/shm/zm.mmap.1, probably not enough space free: Permission denied zm_monitor.cpp 522

This repeats over and over.

I confess that though I am persistent, I do not have any idea how to fix this.

Also in order to get apache2 to start, I had to go in twice and kill a nginx process that was listening on port 80. After doing this, my synology web interface seems to go down until I reboot. Sorry, I think I'm in over my head here, any help is appreciated.

A NAS is not the ideal platform for Zoneminder as it usually does not have enough memory. Try to lower the camera resolution and frame rate. 320x240 and 5 or lower FPS. I've had Zoneminder running on an old HP NAS media vault or something with a USB camera. NAS had less than 500 MEG of RAM and ran Debian 8. A second camera would not load.

Thanks! I'll test what you've described. In theory I can't see why it could not work, since my nas comes with surveillance software which has no trouble with two cameras at reasonable resolutions, but I don't claim to know the ins and outs of how it allocates resources compared to zoneminder. The specs say it has only 256MEG of ram, so that isn't much. I just had no idea what the warning message about memory map file meant in layman's terms, so thank you for your help!

You're not even going to get out of the gate in 256MB.

I understand the attraction of using hardware you already have, but if you're serious about ZM, plan to put some hardware underneath it. I've got a dual-4 core Dell SC1430 at 2GHz with 8GB RAM, and I'm running 13 IP cams on it, 720p at 6fps, and it's borderline, running at about 1.5-2LA per core. I'd planned on something faster, but everything I had available was too noisy for the space.