Blackbird/Firmware/2.10/Release Notes

System Package 2.10 Release Notes

Update hostboot to latest upstream version
Update skiboot to latest upstream version
Update petitboot to latest upstream version
Update hcode to latest upstream version
Update skiroot to Linux 6.6.y stable branch
Enable Infiniband drivers in skiroot
Fix sporadic crash on paired-core machines (higher than 8 core) under specific workloads
Compress hostboot runtime to free up additional space in the BOOTKERNFW partition
Enable firmware component signature checks during IPL by default. Note that this uses the well-known (insecure) public transitional key in the official firmware builds, but makes the transition to a machine owner's key easier should the user wish to enable a secure boot chain using their own signing keys.

New BMC cannot IPL old PNOR and vice versa (CANTFIX)
Lockdown of P2A bridge for security breaks AST2500 VGA passthrough -- ast driver in guest cannot read configuration due to lockdown, and qemu does not pass host device tree information with VGA configuration data to guest kernel.
Certain DIMMs may not function in Slot 0. This is not a defect in the Blackbird planar, it is a memory VPD issue that is being worked by Raptor and the IBM memory team. Future firmware updates are expected to address this problem.
Upgrading from a BMC that has been manually edited to add or remove users can result in loss of SSH access after the upgrade has completed. The root cause is that /etc/passwd is retained verbatim across updates if modified, and as a result the new sshd user is not present in the upgraded firmware environment.
- Prior to upgrading such a BMC, the following line should be added to /etc/passwd on the BMC:
  sshd:x:996:995::/var/run/sshd:/bin/false
- Alternatively, the files /etc/passwd and /etc/group can be removed immediately before reboot to apply the update. Caution should be used with this method, as failure to apply the update could then result in a requirement to use a BMC serial cable or external SPI flasher to recover.