[c-nsp] Nexus 7K NX-OS Upgrade

[Tóth András]

Hi Antonio,

In general, doing a traditional upgrade (changing boot variables) will
not update the BIOS for example, while an ISSU does and it's
non-disruptive with dual-supervisors.

There's a defect which caused the behavior you were seeing, CSCtn61286
which affects 5.1(3). Since you were upgrading from that version, it
was still impacting the upgrade process. It has been fixed in 5.1(4)
and 5.2(1) already, so upgrading from 5.2(3a) to 5.2(7) will not have
the same issue.

http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCtn61286


If the boot variables are incorrect, you can edit them as you'd do on
an IOS device, make sure you update the kickstart and system as well.

Upgrading from 5.2(3a) to 5.2(7) can be done using the install all
(ISSU) method.

Best regards

On Tue, Nov 6, 2012 at 11:38 AM, Antonio Soares <amsoares at netcabo.pt> wrote:
> Hello group,
>
>
>
> Anyone knows the difference between using the install all script or just
> update the boot system flash command when upgrading NX-OS on a Nexus 7K ?
>
>
>
> The question applies to a single supervisor setup.
>
>
>
> The official documentation mentions the two ways of doing it:
>
>
>
> - using the install all script:
>
>
>
> http://www.cisco.com/en/US/docs/switches/datacenter/sw/5_x/nx-os/upgrade/gui
> de/b_Cisco_Nexus_7000_Series_NX-OS_Software_Upgrade_and_Downgrade_Guide__Rel
> ease_5.x_chapter_00.html#con_314241
>
>
>
> - using the traditional procedure:
>
>
>
> http://www.cisco.com/en/US/docs/switches/datacenter/sw/5_x/nx-os/upgrade/gui
> de/b_Cisco_Nexus_7000_Series_NX-OS_Software_Upgrade_and_Downgrade_Guide__Rel
> ease_5.x_chapter_00.html#task_39E26688E1204F8CAAE876450A575E73
>
>
>
> I had a bad experience in the past with the install all script. I was doing
> an upgrade to a 7010 with only 1 supervisor that was installed in slot 6.
> The install all script has a problem, may a bug, it only correctly updates
> the boot variables for slot 5:
>
>
>
> boot kickstart bootflash:/n7000-s1-kickstart.5.2.3a.bin sup-1
>
> boot system bootflash:/n7000-s1-dk9.5.2.3a.bin sup-1
>
> boot kickstart bootflash:/n7000-s1-kickstart.5.1.3.bin sup-2
>
>
>
> The install all script assumes that if there is only one supervisor, it
> should be on slot 5. Above we can see that the boot system is missing for
> sup-2.
>
>
>
> In summary, is there any problem if I simply update the boot variables and
> reload ? May I end up with the supervisor running the new NX-OS release and
> the modules the old NX-OS release ?
>
>
>
>
>
> Regards,
>
>
>
> Antonio Soares, CCIE #18473 (R&S/SP)
> amsoares at netcabo.pt
>
> http://www.ccie18473.net <http://www.ccie18473.net/>
>
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