10.50 upgrade error with new openssh 5.3.0.208 (Incompatible ssh peer (no acceptable kex algorithm)

[Pierrot_2]

we get when running the /distro/T8900-15065/T8900-15065-primary/disk001/opsware_installer/upgrade_opsware.sh -c  cdf.xml

Validating password ....

No handlers could be found for logger "paramiko.transport"

Incompatible ssh peer (no acceptable kex algorithm) (attempt 1 of 3)
You can use <ctrl>p to go to the previous parameter.

Thanks

[Manfred_SA]

Hello Pierre,

I just see that you already have an open case for this matter (5310887346),

As we are going to need some information from your side I will suggest to work over the case, I will help the assigned engineer in order to move the case forward.

So we will be contacting you at the earliest,

Thanks & Regards,

Manfred

[anaik]

Even I am Facing this issue , how was it resolved ?

[Pogonchev]

Hi anaik,

To resolve this issue you would need to enable the following two key exchange algorithms (sshd_config option KexAlgorithms) that are needed by paramiko 1.7.6 that the SA installer is using to ssh into the SA servers at install time:

'diffie-hellman-group1-sha1' or 'diffie-hellman-group-exchange-sha1'

I hope this helps.

Kind regards,

Nikola

[rajesh5-MF]

Hello Nikola,

   I'm seeing same issue while installing 2018.08 on SLES 11 SP4 as shown here:

No handlers could be found for logger "paramiko.transport"
Incompatible ssh peer (no acceptable kex algorithm) (attempt 1 of 3)
You can use <ctrl>p to go to the previous parameter.

I tried to see what algo is enabled on SLES 11 SP4 and i found out this:

debug2: KEX algorithms: curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1

So it seems both of the algorithm already exist but still ssh is failing. Any suggestion idea ?