additional data (chroot'ed from installer console) root@server:/# ls -l /dev/disk/by-uuid/ total 0 lrwxrwxrwx 1 root root 10 Jan 24 14:41 e5635a37-b72e-40e7-85b5-4a40867a2f71 -> ../../sdb1 root@server:/# blkid /dev/sda1: TYPE="vfat" /dev/sdb2: UUID="dbe73c33-f6ad-43b1-8976-c8b6cee7a673" TYPE="swap" PARTUUID="40d1b763-199c-446d-9fd5-008086740fb2" /dev/sdb3: UUID="01385666-8e64-46de-9edf-5c86bf5a7b5e" TYPE="ext4" PARTUUID="f89d01ef-1b38-42b2-a04e-2f8303a87eb7" /dev/sdb4: UUID="0daa25cb-257d-4e52-a20b-4fa2a1b95486" TYPE="ext4" PARTUUID="2352072f-e7a5-4ad5-a6c7-910a5bf9bb3c" /dev/sdb1: PARTUUID="43c414a3-63a2-4949-b337-fc381fa48ec5" root@server:/#
running /bin/update-dev in installer env by hands - change situation a bit: root@server:/# ls -l /dev/disk/by-uuid/ total 0 lrwxrwxrwx 1 root root 10 Jan 24 16:24 01385666-8e64-46de-9edf-5c86bf5a7b5e -> ../../sdb3 lrwxrwxrwx 1 root root 10 Jan 24 16:24 0daa25cb-257d-4e52-a20b-4fa2a1b95486 -> ../../sdb4 lrwxrwxrwx 1 root root 10 Jan 24 16:24 dbe73c33-f6ad-43b1-8976-c8b6cee7a673 -> ../../sdb2 after this - reinstall grub from installer window - and it write correct line in grub.cfg "linux /boot/vmlinuz-4.8.0-2-amd64 root=UUID=01385666-8e64-46de-9edf-5c86bf5a7b5e ro quiet"