./netdata-installer.sh: Permission denied

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1

/etc/cron.daily/netdata-updater: line 225: ./netdata-installer.sh: Permission denied
Tue Nov 3 03:38:03 +08 2020 : ERROR: FAILED TO UPDATE NETDATA : FAILED TO COMPILE/INSTALL NETDATA

/tmp is mounted as noexec on CentOS 7.

Any workaround for this? Thanks

2

if i edit netdata-updater.sh won’t work because this file will be replaced somehow. So in the end i define TMPDIR in ~/.bash_profile, and source this profile while running custom cron.

0 * * * * source ~/.bash_profile; /usr/libexec/netdata/netdata-updater.sh

cron.daily]# ./netdata-updater
Wed Nov 18 14:56:56 +08 2020 : INFO: Running on a terminal - (this script also supports running headless from crontab)
Wed Nov 18 14:56:57 +08 2020 : INFO: Current Version: 00102600000207
Wed Nov 18 14:56:57 +08 2020 : INFO: Latest Version: 00102600000207
Wed Nov 18 14:56:57 +08 2020 : INFO: Newest version (current=00102600000207 >= latest=00102600000207) is already installed

i assume this works?
I still receiving /tmp permission denied email though, that should be the script running at cron.daily which doesn’t work. Any way to disable auto updater?

3

Is there an open issue in the github repo? I couldn’t find one.

Back then we had that problem and it was fixed in kickstart: noexec detection by paulfantom · Pull Request #5293 · netdata/netdata · GitHub, but a lot of had changed since then, could be we reverted those changes duriing refactoring or something

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@ethaniel86 , if this works for you, please let us know.

Best regards!

5

alright thanks for the update. For the time being i’ll just apply workaround to updater. Let’s monitor.

/etc/cron.daily/netdata-updater
export TMPDIR=/root/netdata/tmp

6

Hello @ethaniel86 ,

As @OdysLam said, this is a problem that we are working to fix. On CentOS 7 in normal situation it is not allowed to run any script inside /tmp, and some users decided to disable noexec on it, but this can also be a security problem. We will need to change our installation script to use a different directory to run the updates.

Best regards!

7

Hey @ethaniel86,

There is an active issue: the source directory does not include netdata-installer.sh · Issue #9863 · netdata/netdata · GitHub which might be related. Please be patient as I speak with our engineers, they should be back here to reply promptly!

cc @Austin-Hemmelgarn

8

For anyone else running into this problem, I looked through the source of /etc/cron.daily/netdata-updater (which may have changed since this 2020 thread) and see that it checks for a NETDATA_TMPDIR_PATH environment variable, and will use that in preference to TMP_DIR. So, we can define something like this in /etc/anacrontab so it is defined before any of the cron.daily etc. scripts are run:

NETDATA_TMPDIR_PATH=/root/tmp