Public bug reported:
Hello!
I am trying to provision a baremetall node using ubuntu24.04 and use
curtin to configure it. I have a well tested configuration file which
was used with curtin-21.3 and ubuntu20.04. However it doesn't work when
I try it on ubuntu24.04. It fails on dpkg-reconfigure grub-pc step.
There is software raid 1 configured and lvm root volume on it, here is
curtin configuration file:
```
storage:
version: 1
config:
- id: system_disk0
type: disk
ptable: msdos
model: KXG60ZNV256G TOSHIBA
serial: 31RY10AQYRU1
grub_device: 1
wipe: superblock
- id: system_disk0_part_1
type: partition
offset: 4194304B
size: 256056320000B
device: system_disk0
flag: bios_grub
wipe: superblock
- id: system_disk1
type: disk
ptable: msdos
model: KXG60ZNV256G TOSHIBA
serial: 31RY10AVYRU1
grub_device: 1
wipe: superblock
- id: system_disk1_part_1
type: partition
offset: 4194304B
size: 256056320000B
device: system_disk1
flag: bios_grub
wipe: superblock
- id: mddevice
name: md0
type: raid
raidlevel: 1
devices:
- system_disk0_part_1
- system_disk1_part_1
- id: lvm_volume_group
type: lvm_volgroup
name: system
devices:
- mddevice
- id: lvm_logical_volume_root
type: lvm_partition
name: lv_root
volgroup: lvm_volume_group
- id: lvm_root_format
type: format
fstype: ext4
volume: lvm_logical_volume_root
- id: lvm_root_mount
type: mount
path: /
device: lvm_root_format
```
So it configures successfully raid and lvm volumes. But then fails on
dpkg-reconfigure grub-pc (see attached log file).
The problem can be reproduced manually, so I can mount, chroot and then run:
```
$ debconf-show grub-pc
grub-pc/mixed_legacy_and_grub2: true
grub-pc/install_devices_failed: false
grub-pc/install_devices_disks_changed:
grub2/kfreebsd_cmdline_default: quiet splash
grub2/update_nvram: true
grub-pc/timeout: 0
grub2/linux_cmdline:
* grub-efi/cloud_style_installation: true
grub2/linux_cmdline_default: quiet splash
grub-efi/install_devices_failed: false
grub-pc/kopt_extracted: false
grub2/unsigned_kernels_title:
grub-pc/disk_description:
grub2/unsigned_kernels:
grub-efi/install_devices_empty: false
grub-pc/chainload_from_menu.lst: true
grub2/no_efi_extra_removable: false
* grub-pc/install_devices:
/dev/disk/by-id/nvme-eui.00000000000000018ce38e01000a4355,
/dev/disk/by-id/nvme-eui.00000000000000018ce38e01000a435b
grub-pc/postrm_purge_boot_grub: false
grub-efi/install_devices:
grub-pc/partition_description:
grub2/kfreebsd_cmdline:
* install_devices:
grub-pc/install_devices_failed_upgrade: true
grub-efi/install_devices_disks_changed:
grub-pc/hidden_timeout: true
* grub-pc/install_devices_empty: false
grub-efi/partition_description:
* grub-pc/cloud_style_installation: true
grub2/enable_os_prober: false
$ dpkg-reconfigure grub-pc
Installing for i386-pc platform.
File descriptor 3 (pipe:[263483]) leaked on vgs invocation. Parent PID 55120:
grub-install
File descriptor 3 (pipe:[263483]) leaked on vgs invocation. Parent PID 55120:
grub-install
File descriptor 3 (pipe:[263483]) leaked on vgs invocation. Parent PID 55120:
grub-install
File descriptor 3 (pipe:[263483]) leaked on vgs invocation. Parent PID 55120:
grub-install
File descriptor 3 (pipe:[263483]) leaked on vgs invocation. Parent PID 55120:
grub-install
grub-install: warning: File system `ext2' doesn't support embedding.
grub-install: warning: Embedding is not possible. GRUB can only be installed
in this setup by using blocklists. However, blocklists are UNRELIABLE and
their use is discouraged..
grub-install: error: will not proceed with blocklists.
```
install_devices looks correct and symlinks point to real nvme6n1 and nvme7n1
devices (not partitions). If I set `cloud_style_installation: false` -
dpkg-reconfigure passes without errors, but it seems then grub doesn't trigger
installation actually.
** Affects: grub2 (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "curtin-fails-on-grub.log"
https://bugs.launchpad.net/bugs/2076329/+attachment/5803757/+files/curtin-fails-on-grub.log
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https://bugs.launchpad.net/bugs/2076329
Title:
24.04 grub-pc fails on dpkg-reconfigure
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