I've upgraded 2 nexus N5K-C5672UP devices, and following output on them show different reason:
1.
crt03(config)# sh install all status
Compatibility check is done:
Module bootable Impact Install-type Reason
------ -------- -------------- ------------ ------
1 yes disruptive reset Forced by the user
2 yes disruptive reset Forced by the user
110 yes disruptive reset Forced by the user
111 yes disruptive reset Forced by the user
112 yes disruptive reset Forced by the user
113 yes disruptive reset Forced by the user
114 yes disruptive reset Forced by the user
Images will be upgraded according to following table:
Module Image Running-Version New-Version Upg-Required
------ ---------------- ---------------------- ---------------------- ------------
1 system 7.0(7)N1(1) 7.3(5)N1(1) yes
1 kickstart 7.0(7)N1(1) 7.3(5)N1(1) yes
1 bios v2.1.2(07/16/2014) v2.1.7(06/16/2016) yes
1 power-seq v4.0 v4.0 no
1 fabric-power-seq v4.0 v4.0 no
2 power-seq v4.0 v4.0 no
110 fexth 7.0(7)N1(1) 7.3(5)N1(1) yes
111 fexth 7.0(7)N1(1) 7.3(5)N1(1) yes
112 fexth 7.0(7)N1(1) 7.3(5)N1(1) yes
113 fexth 7.0(7)N1(1) 7.3(5)N1(1) yes
114 fexth 7.0(7)N1(1) 7.3(5)N1(1) yes
1 microcontroller v0.0.0.15 v0.0.0.15 no
2.
rt04# sh install all status
Compatibility check is done:
Module bootable Impact Install-type Reason
------ -------- -------------- ------------ ------
1 yes disruptive reset Incompatible image
2 yes disruptive reset Incompatible image
110 yes disruptive reset Incompatible image
111 yes disruptive reset Incompatible image
112 yes disruptive reset Incompatible image
113 yes disruptive reset Incompatible image
114 yes disruptive reset Incompatible image
Images will be upgraded according to following table:
Module Image Running-Version New-Version Upg-Required
------ ---------------- ---------------------- ---------------------- ------------
1 system 7.0(7)N1(1) 7.3(5)N1(1) yes
1 kickstart 7.0(7)N1(1) 7.3(5)N1(1) yes
1 bios v2.1.2(07/16/2014) v2.1.7(06/16/2016) yes
1 power-seq v4.0 v4.0 no
1 fabric-power-seq v4.0 v4.0 no
2 power-seq v4.0 v4.0 no
110 fexth 7.0(7)N1(1) 7.3(5)N1(1) yes
111 fexth 7.0(7)N1(1) 7.3(5)N1(1) yes
112 fexth 7.0(7)N1(1) 7.3(5)N1(1) yes
113 fexth 7.0(7)N1(1) 7.3(5)N1(1) yes
114 fexth 7.0(7)N1(1) 7.3(5)N1(1) yes
1 microcontroller v0.0.0.15 v0.0.0.15 no
Q. what is the difference between "Forced by the user" vs "Incompatible image" upgrade?
