Just upgraded a WS-8-250-DC to v1.4 but it didn't reboot after the upgrade, switch is still up but have the following in the log.
Jan 1 00:00:05 netonix: 1.4.0rc4 on WS-8-250-DC
Jan 1 00:00:09 kernel: link state changed to 'up' on port 1
Jan 1 00:00:09 kernel: link state changed to 'up' on port 2
Jan 1 00:00:09 kernel: link state changed to 'up' on port 3
Jan 1 00:00:09 kernel: link state changed to 'up' on port 4
Jan 1 00:00:09 kernel: link state changed to 'up' on port 6
Jan 1 00:00:09 system: Setting MAC address from flash configuration: EC:13:B3:51:04:10
Jan 1 00:00:10 kernel: link state changed to 'up' on port 5
Jan 1 00:00:10 kernel: link state changed to 'up' on port 7
Jan 1 00:00:11 system: starting ntpclient
Jan 1 00:00:12 admin: adding lan (eth0) to firewall zone lan
Jan 1 00:00:13 admin: Unable to query power supply
Jan 1 00:00:16 kernel: link state changed to 'down' on port 1
Jan 1 00:00:16 kernel: link state changed to 'down' on port 2
Jan 1 00:00:16 kernel: link state changed to 'down' on port 3
Jan 1 00:00:16 kernel: link state changed to 'down' on port 4
Jan 1 00:00:16 kernel: link state changed to 'down' on port 5
Jan 1 00:00:16 kernel: link state changed to 'down' on port 6
Jan 1 00:00:16 kernel: link state changed to 'down' on port 7
Jan 1 00:00:17 kernel: link state changed to 'up' on port 1
J
an 1 00:00:17 kernel: link state changed to 'up' on port 3
Jan 1 00:00:17 kernel: link state changed to 'up' on port 2
Jan 1 00:00:18 kernel: link state changed to 'up' on port 4
Jan 1 00:00:18 kernel: link state changed to 'up' on port 6
Jan 1 00:00:18 kernel: link state changed to 'up' on port 7
Jan 1 00:00:19 kernel: link state changed to 'up' on port 5
Mar 3 18:55:35 UI: i2c error setting 0x47 12 184
Mar 3 18:55:56 UI: i2c error setting 0x47 14 196
Mar 3 18:55:57 dropbear[899]: Running in background
Mar 3 18:56:13 switch[916]: Error reading temp sensor
Mar 3 18:56:15 switch[971]: Detected warm boot
Mar 3 18:56:16 switch[922]: Unable to read shutdown flag from power supply after 10 tries, still trying...
Maybe I should have tested this on one of the switches in the workshop and not one in production.
Edit
Switch was working 100% on 1.3.9, Uploaded 1.4 and started upgrade. I logged into the AP feeding this tower and noticed the the traffic stop while switch was upgrading. Logged into station at tower that is powered by the WS-8-250-DC and noticed that it had not rebooted but the switch powering it had.
Site is very remote, NO FM towers close by (7 miles away). Site has small wind turbine and 2 solar panels running into 24v battery bank. Voltage on site 24.7v.
Switch has POE 24v switched on portts 1,2,3,4,5 & 6. Port 7 has a Morningstar plugged into it and port 8 is free.
Switch pulling 1.5A (about 38W)