operating system not found

[bpsundar]

after installation the system fails to boot with this message, "operating system not found" the screenshot of the partition table... booting from USB using latest VanillaOS-22.10-all.20221231.iso

[mirkobrombin]

The post-install script failed. Try running the installer again from terminal (do not look for the integrated one), then post the output here.

[bpsundar]

same result when tried with 'vanilla-installer' in the terminal. I am trying to install in a old laptop that does booting from BIOS.

[mirkobrombin]

I asked for the output

[bpsundar]

[mirkobrombin]

Complete the installation, wait for the final page and then post the output

[bpsundar]

log.txt

[kbdharun]

log.txt

Adding the full output from the above file here for future reference

sent 4,567,560,374 bytes  received 1,620,690 bytes  32,064,428.52 bytes/sec
total size is 4,841,492,691  speedup is 1.06
INFO:Installer::Processor:creating standard folders in B
INFO:Installer::Processor:updating B fstab
INFO:Installer::Processor:load efi modules
INFO:Installer::Processor:updating grub for both root partitions
INFO:Installer::Processor:updating GRUB in '/mnt/a'
INFO:Installer::Processor:finding partitions for block device '/dev/sda' with mountpoint '/boot' and filesystem 'ext4'
INFO:Installer::Processor:finding partitions for block device '/dev/sda' with mountpoint '/boot/efi' and filesystem 'vfat'
INFO:Installer::Processor:unmounting '/dev/sda2' if mounted
INFO:Installer::Processor:unmounting '/dev/sda1' if mounted

(vanilla-installer:2448): Adwaita-CRITICAL **: 15:46:43.695: adw_carousel_get_nth_page: assertion 'n < adw_carousel_get_n_pages (self)' failed
                                                                                                                                              Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
done
Installing for x86_64-efi platform.
grub-install: warning: EFI variables cannot be set on this system.
grub-install: warning: You will have to complete the GRUB setup manually.
Installation finished. No error reported.
Installing for x86_64-efi platform.

(vanilla-installer:2448): Adwaita-CRITICAL **: 15:47:03.710: adw_carousel_get_nth_page: assertion 'n < adw_carousel_get_n_pages (self)' failed
                                                                                                                                              grub-install: warning: EFI variables cannot be set on this system.
grub-install: warning: You will have to complete the GRUB setup manually.
Installation finished. No error reported.
INFO:Installer::Processor:unmounting '/dev/sda2' if mounted
INFO:Installer::Processor:unmounting '/dev/sda1' if mounted
INFO:Installer::Processor:updating GRUB in '/mnt/b'
INFO:Installer::Processor:finding partitions for block device '/dev/sda' with mountpoint '/boot' and filesystem 'ext4'
INFO:Installer::Processor:finding partitions for block device '/dev/sda' with mountpoint '/boot/efi' and filesystem 'vfat'
INFO:Installer::Processor:unmounting '/dev/sda2' if mounted
INFO:Installer::Processor:unmounting '/dev/sda1' if mounted
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
Warning: os-prober will not be executed to detect other bootable partitions.
Systems on them will not be added to the GRUB boot configuration.
Check GRUB_DISABLE_OS_PROBER documentation entry.
done
Installing for x86_64-efi platform.

(vanilla-installer:2448): Adwaita-CRITICAL **: 15:47:23.726: adw_carousel_get_nth_page: assertion 'n < adw_carousel_get_n_pages (self)' failed
                                                                                                                                              grub-install: warning: EFI variables cannot be set on this system.
grub-install: warning: You will have to complete the GRUB setup manually.
Installation finished. No error reported.
Installing for x86_64-efi platform.
grub-install: warning: EFI variables cannot be set on this system.
grub-install: warning: You will have to complete the GRUB setup manually.
Installation finished. No error reported.
INFO:Installer::Processor:unmounting '/dev/sda2' if mounted

[mirkobrombin]

Can you try with latest iso?