Public bug reported:
I faced a grub rescue dialogue after grubx64.efi was sent from MAAS. It's very
similar with:
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1437353
But a workaround replacing grubx64.efi with newer one didn't work for
me:
$ sudo cp -v artful_grubx64.efi.signed \
/var/lib/maas/boot-resources/current/bootloader/uefi/amd64/grubx64.efi
$ sudo service tgt restart
$ sudo service maas-rackd restart
Hardware information:
Cisco UCSC-C240-M4SX
Intel I350 Gigabit Network Connection
(firmware: 1.63, 0x80000e75, 0.385.8)
UEFI -> it didn't work
I didn't see this behavior with a similar Cisco server with Intel X710.
Cisco UCSC-C240-M4L
Intel X710 for 10GbE SFP+
UEFI -> it worked
Also, when looking at the Cisco driver download page:
https://software.cisco.com/download/release.html?mdfid=286281356&softwareid=283850974&release=3.0(3f)
It's linked to the release notes which have the line:
https://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/release/notes/b_UCS_C-Series_Release_Notes_3_0_3.html
CSCui32274
UEFI PXE boot is not working in C-series servers.
(Workaround) None. This feature is currently not supported.
** Affects: grub2 (Ubuntu)
Importance: Undecided
Status: New
** Tags: cpe-onsite
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https://bugs.launchpad.net/bugs/1744977
Title:
GRUB rescue in UEFI PXE with Cisco UCSC-C240-M4SX and Intel I350 1G
NIC
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