On a FCP/SCSI LPAR, the CCW device enablement looks also fine (where
auto LUN discovery and enablement is configured), but the autoinstall
process fails right after that with:

The console shows:
"
...
running early commands
running snap refresh subiquity --channel=latest/edge/lp-2104267 --ignore-running
connecting...
running early commands
running snap refresh subiquity --channel=latest/edge/lp-2104267 --ignore-running
snap "subiquity" has no updates available
...
start: subiquity/Early/run:
start:  subiquity/Early/run/command_0: snap refresh subiquity 
--channel=latest/edge/lp-2104267 --ignore-running
finish:  subiquity/Early/run/command_0: snap refresh subiquity 
--channel=latest/edge/lp-2104267 --ignore-running
...
start: subiquity/Zdev/load_autoinstall_data:
finish: subiquity/Zdev/load_autoinstall_data:
...
start: subiquity/Zdev/apply_autoinstall_config:
...
finish: subiquity/Zdev/apply_autoinstall_config:
start: subiquity/Source/apply_autoinstall_config:
...
start: subiquity/Filesystem/apply_autoinstall_config:
start:  
subiquity/Filesystem/apply_autoinstall_config/convert_autoinstall_config:
finish:  
subiquity/Filesystem/apply_autoinstall_config/convert_autoinstall_config: 
'/dev/dm-name-mpatha-part1'
finish: subiquity/Filesystem/apply_autoinstall_config: 
'/dev/dm-name-mpatha-part1'
finish: subiquity/apply_autoinstall_config: '/dev/dm-name-mpatha-part1'
start:  subiquity/ErrorReporter/1743061108.460952997.unknown/add_info:
finish:  subiquity/ErrorReporter/1743061108.460952997.unknown/add_info: written 
to /var/crash/1743061108.460952997.unknown.crash
An error occurred. Press enter to start a shell
"

And in the logs I can see: https://pastebin.canonical.com/p/H4cBkvK7QV/
(full /var/log and /var/crash are attached)

However, the CCW devices themselves were already properly enabled (taken from 
busybox):
lszdev --online
TYPE       ID                                              ON   PERS  NAMES
zfcp-host  0.0.e000                                        yes  yes
zfcp-host  0.0.e100                                        yes  yes
zfcp-lun   0.0.e000:0x50050763060b16b6:0x4026400300000000  yes  no    sdb sg1
zfcp-lun   0.0.e000:0x50050763061b16b6:0x4026400300000000  yes  no    sda sg0
zfcp-lun   0.0.e100:0x50050763060b16b6:0x4026400300000000  yes  no    sdd sg3
zfcp-lun   0.0.e100:0x50050763061b16b6:0x4026400300000000  yes  no    sdc sg2
qeth       0.0.c000:0.0.c001:0.0.c002                      yes  no    encc000

I assume that this could be due to LP#2093352 ...

** Attachment added: "s1lp15-FCPSCSI-27032025.tgz"
   
https://bugs.launchpad.net/ubuntu-z-systems/+bug/2104267/+attachment/5867603/+files/s1lp15-FCPSCSI-27032025.tgz

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https://bugs.launchpad.net/bugs/2104267

Title:
  autoinstall fails to execute zdevs entries, reports ZdevController'
  object has no attribute 'zdevinfos'

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