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Michael Altfield
Asked: 2020-12-19 02:08:29 +0800 CST

How to check OS version of Synology NAS Disk Station Manager (DSM)?

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How do I check what OS is installed on my Synology NAS?

uname -a informed me that my NAS is:

aarch64 GNU/Linux synology_rtd1296_rs819

..but how do I know what version of the Synology OS it's running? Wikipedia tells me that Synology used to use an OS based on BSD, but today it's "Linux-based". I tried to get the version from all the usual places, but none of these files exist:

  1. /etc/issue
  2. /etc/redhat-release
  3. /etc/release

How do I determine what is OS version of Disk Station Manager that my Synology NAS is currently running via the command-line?

linux network-attached-storage synology dsm

1 Answers

  1. The file you want to check is /etc/VERSION

    bash-4.3# cat /etc/VERSION
majorversion="6"
minorversion="2"
productversion="6.2.1"
buildphase="GM"
buildnumber="23824"
smallfixnumber="4"
packing="iSCSI"
packing_id="1"
builddate="2018/12/25"
buildtime="16:58:15"
bash-4.3#

    To determine the latest version of DSM, see their website:

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