Add more log when invoking efibootmgr

[HuijingHei]

Fix #907

[HuijingHei]

When I do testing for this, need to run env BOOTC_BOOTLOADER_DEBUG=1 bootc install to get the debug log, I am not sure if Anaconda will get the log.

Change log::debug to println now.

[HuijingHei]

Tried to test using bootc install to-existing-root and get logs like following, does this make sense?

[root@localhost ~]# podman run \
--rm \
--tls-verify=false \
--privileged \
--pid=host \
-v /:/target \
-v /dev:/dev \
-v /var/lib/containers:/var/lib/containers \
-v /root/.ssh:/output \
--security-opt label=type:unconfined_t \
bootc-test \
bootc install to-existing-root --karg=console=tty0 --karg=console=ttyS0,115200n8 --target-transport containers-storage --acknowledge-destructive

...
> bootupctl backend install --write-uuid --update-firmware --auto --device /dev/vda /target
Exec: "efibootmgr" "-b" "0002" "-B"
BootCurrent: 0001
Timeout: 3 seconds
BootOrder: 0001,0000
Boot0000* UiApp	FvVol(7cb8bdc9-f8eb-4f34-aaea-3ee4af6516a1)/FvFile(462caa21-7614-4503-836e-8ab6f4662331)
Boot0001* UEFI Misc Device	PciRoot(0x0)/Pci(0x2,0x3)/Pci(0x0,0x0){auto_created_boot_option}
Exec: "efibootmgr" "--create" "--disk" "/dev/vda" "--part" "2" "--loader" "\\EFI\\fedora\\shimx64.efi" "--label" "Fedora"
BootCurrent: 0001
Timeout: 3 seconds
BootOrder: 0002,0001,0000
Boot0000* UiApp	FvVol(7cb8bdc9-f8eb-4f34-aaea-3ee4af6516a1)/FvFile(462caa21-7614-4503-836e-8ab6f4662331)
Boot0001* UEFI Misc Device	PciRoot(0x0)/Pci(0x2,0x3)/Pci(0x0,0x0){auto_created_boot_option}
Boot0002* Fedora	HD(2,GPT,fb2a48af-ef37-4f56-940e-109f8989ba2f,0x1800,0x32000)/\EFI\fedora\shimx64.efi
Added 01_users.cfg
Added 10_blscfg.cfg
Added 14_menu_show_once.cfg
Added 30_uefi-firmware.cfg
Added 41_custom.cfg
Installed: grub.cfg
Installed: bootuuid.cfg
Installed: "fedora/grub.cfg"
Installed: "fedora/bootuuid.cfg"
Installation complete!

[travier]

One question but otherwise LGTM

[travier]

When I do testing for this, need to run env BOOTC_BOOTLOADER_DEBUG=1 bootc install to get the debug log, I am not sure if Anaconda will get the log.

Change log::debug to println now.

Ah, maybe log::info should do it? We should be printing info logs by default.

[HuijingHei]

When I do testing for this, need to run env BOOTC_BOOTLOADER_DEBUG=1 bootc install to get the debug log, I am not sure if Anaconda will get the log.
Change log::debug to println now.

Ah, maybe log::info should do it? We should be printing info logs by default.

I tried to use log::info, but can not get the logs. So change it back to print, let me know if I misunderstood this, thank you!