Boot Next - Mellanox Technologies Mellanox SX1018 Command Reference Manual

boot next

boot next fallback-reboot enable
no boot next fallback-reboot enable
Sets the default setting for next boot. Normally, if the system fails to apply the config-
uration on startup (after attempting upgrades or downgrades, as appropriate), it will
reboot to the other partition as a fallback.
The no form of the command tells the system not to do that, only for the next boot.
Syntax Description N/A
Default N/A
Modes/Context Config
History 3.2.0506
Role admin
Example
switch (config) # boot fallback-reboot enable
switch (config) #
Related Commands show images
Note Normally, if the system fails to apply the configuration on startup (after attempting
upgrades or downgrades, as appropriate), it will reboot to the other partition as a fall-
back. The 'no' variant of this command tells the system NOT to do that, ONLY for
the next boot. Note that this setting is not persistent, and will go back to enabled auto-
matically after every boot.
Note that if you are downgrading to an older software version which has never been
run yet on this system, the "fallback reboot" will ALWAYS happen, unless you use
"no boot next fallback-reboot enable" first. This is also true in some other cases, such
as when you have run the older software version before, but you have switched to a
different configuration file since upgrading. In general, a downgrade will only work
(without having the fallback reboot forcibly disabled) if it can find a snapshot of the
configuration file (by the same name as the currently active one) which was taken
when you earlier upgraded from the older software version. If it doesn't find this file,
it will do a fallback reboot in preference to falling back to the initial database, since
the latter will generally involve a loss of network connectivity, and avoid that is con-
sidered of paramount importance.
Mellanox Technologies
Rev 1.6.2
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