I have recently patched my Solaris 11.4 servers with the SRU. After patches, we reboot to apply the new boot environment. Everything seemed to go pretty standard.
That was until last night when we rebooted a server. It didn't come up right away, so I got on the console and it was asking for the grub username/password. After entering the info, it booted right up as usual. But now, every time the server boots it asks for the name/pass. This is also happening with other servers I've tested so far.
Was this a change in a recent patch?

Thanks in advance!

Hi,

The GRUB (Grand Unified Bootloader) password requirement on a Solaris 11.4 server after a reboot is likely due to a deliberate security measure implemented by the system administrator or a configuration change that was made. Specifically, the bootadm set-menu command can be used to set a password for accessing the GRUB menu.

https://docs.oracle.com/cd/E37838_01/html/E60978/gkvhz.html

Regards

Saravanan

The upgrade from Solaris 11.4 SRU 80 or earlier to SRU 81 or later will upgrade GRUB from version 1.99 to 2.12, but it shouldn't prompt for a password unless an admin has configured it to do so. (The actual upgrade of the bootloader happens after you boot into the new SRU for the first time, so it doesn't appear at boot until the second boot of the new SRU.)