<div dir="ltr"><div>According to TAC some fixes (like patch for flash corruption) are kernel related and it's why they need full restart instead of ISSU.</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Jul 24, 2020 at 4:39 PM Gerald K. <<a href="mailto:gerald@ax.tc">gerald@ax.tc</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">> <br>
> On 21.07.20 22:50, Robert Hass wrote:<br>
>> For all upgrades where compact-flash corruption fix is required you<br>
>> cannot use ISSU.<br>
>> This is what I heard from GTAC upgrading all our VDXes.<br>
<br>
Yes, ISSU have not work in our situation on the switch with the probably<br>
faulty flash inside. We've tried it but at some stage it complain "disk<br>
SCSI errors", cancels the update and revert itself back to the old<br>
software version.<br>
<br>
But I was able to manually "netinstall" (*) from USB Software 6.0.2h on<br>
all 4 partitions of the switch without any errors and now the switch is<br>
back in the fabric.<br>
<br>
Of course that do not fix any flash corruption. But it prevents a little<br>
bit from getting worse hopefully.<br>
<br>
Gerald<br>
<br>
(*)<br>
<a href="https://gtacknowledge.extremenetworks.com/articles/Q_A/How-to-perform-netinstall-on-VDX-6740-and-6940-via-USB" rel="noreferrer" target="_blank">https://gtacknowledge.extremenetworks.com/articles/Q_A/How-to-perform-netinstall-on-VDX-6740-and-6940-via-USB</a><br>
<br>
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</blockquote></div>