On Wed 12 Feb 2025 at 13:59:11 (+0800), hlyg wrote: > i can't find "ran successfully" in entire syslog with editor's search > function
That's because Grub wasn't installed in the MBR, hence explaining why the FreeBSD loader wasn't touched. > 2nd disk has 4 partitions, 2 for stretch and deb12, installer seems to > parse their grub.cfg, making log very long Yes, more than once. And it also attempts to mount each partition several times, trying different filesystem types, particularly when you let os-prober run. But here's the interesting line: > Feb 11 08:54:51 grub-installer: info: Installing grub on '' The question is how it got a null string there, rather than /dev/sda or some such. I wonder whether we can replicate that. Are you using the Debian 12.9 installer or something older (as I see you have /dev/sdb4:Debian GNU/Linux 12 (bookworm):Debian already. Is it the DVD or netinst version? (IOW do you have the filename of what you copied onto the USB stick?) > Feb 11 08:54:51 /bin/in-target: warning: /target/etc/mtab won't be > updated since it is a symlink. > Feb 11 08:54:53 kernel: [ 443.233902] QNX4 filesystem 0.2.3 registered. > Feb 11 03:54:53 os-prober: debug: running > /usr/lib/os-probes/50mounted-tests on /dev/sda1 Of incidental interest is why the installation seems to be set for an Eastern US time zone (-0500). Cheers, David.