[Bug 2142532] Re: curtin install_grub.py RHEL 10

[Jacopo Rota]

** Changed in: maas
       Status: New => Triaged

** Changed in: maas
   Importance: Undecided => Medium

** Changed in: maas
    Milestone: None => 3.8.0

** Also affects: maas/3.6
   Importance: Undecided
       Status: New

** Also affects: maas/3.7
   Importance: Undecided
       Status: New

** Also affects: curtin
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/2142532

Title:
  curtin install_grub.py  RHEL 10

Status in curtin:
  New
Status in MAAS:
  Triaged
Status in MAAS 3.6 series:
  New
Status in MAAS 3.7 series:
  New

Bug description:
  Describe the bug: 
  curtin/install_grub.py fails while deploying RHEL/Rocky 10 because of missing value in line 361

  Steps to reproduce: 
  Deploy RHEL/Rocky 10 as Custom or RHEL image (boot-resoure)

  
  Expected behavior (what should have happened?):
  Grub installs as requested

  
  Actual behavior (what actually happened?): 
  Fails with exception not supported version: "Unsupported rhel_ver value: 10"

  https://github.com/canonical/curtin/blob/04af5d497fa0e88f86843afbdc666f05e0c7a554/curtin/commands/install_grub.py#L361

  A user comment the merge, but nobody responded:
  https://github.com/canonical/curtin/commit/0057b1b733b31109936bb7de202a2450e368534d

  MAAS version and installation type (deb, snap): 
  3.6.2 but all version are affected, because source did not work.

  MAAS setup (HA, single node, multiple regions/racks):


  Host OS distro and version:


  Additional context:
  Quick fix add "10" to the list, but maybe remove this list and change to '> 6'. It is also not good style to have fixed values in source, because the fail eventually over time.

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