On Mon, 2017-05-15 at 20:38 +0200, Cyril Brulebois wrote: > Control: tag -1 - moreinfo > > Alfred Grimstad <agrims...@gmail.com> (2017-05-15): > > Writing to both /dev/sda and /dev/sdb both seemed to work in the normal > > fashion during the main install process, which I've done with the Debian > > installer many times. There was no error indication. > > Thanks for your syslog. This feels strange, looking at grub-installer lines: > | May 11 16:47:24 grub-installer: info: Installing grub on '' > | May 11 16:48:33 grub-installer: info: Installing grub on '/dev/sdb' > > Did you pick manual selection, and entered "/dev/sda /dev/sdb" as a > destination? There's no indication grub-install was called with /dev/sda > as a parameter, which would likely explain why your installation didn't > boot if your BIOS/EFI is looking at the MBR on sda/the first disk only.
When I get to the end of the installation process and it's time to configure grub, I only select one disk, i.e., /dev/sda. To get grub installed on the second disk I always go through that final part of the installation again--before it's time to boot the new installation for the first time--to select the other drive, i.e., /dev/sdb. I can't quite remember, but I believe the way one selects is to choose one from a menu (/dev/sda, /dev/sdb, /dev/md0), not enter the path in a text field --which would permit listing both or any other stupid path or paths, opening up the opportunity to introduce an error. > > I ran this option twice, once for /dev/sda and again for /dev/sdb. > > Based on what was written on the screen, this was equivalent to > > running: > > > > grub-install /dev/sd{a|b}. After that, stretch booted. > > It should be, yeah. > > > OK. I found /var/log/installer/syslog. I gzipped it and have attached > > to this message. I guess you're asking that I add it to the bug > > report, which I'll also try to do. > > Perfect, thanks. > > > > I haven't tried LVM-on-RAID1 without separate /boot yet, so I'm not > > > sure it's expected to work directly; but I know for sure that > > > LVM-on-RAID1 with separate /boot should work just fine. > > > > Since it was so easy for me to fix, I want to think that it wouldn't > > take much to tweak the installer to handle this case correctly too. I > > hope so, anyway. -- al > > I'll wait for an answer to my question above before, but I'd tend to > think there's something fishy; so let's try and figure what and how to > fix/improve. > > > KiBi.