I see from syslog there may be some issue with grub probe. Here is verbose output from both drives:
lubuntu@lubuntu:~$ sudo grub-probe -v -d /dev/sda grub-probe: info: cannot open `/boot/grub/device.map': No such file or directory. grub-probe: info: /dev/sda is not present. grub-probe: info: Looking for /dev/sda. grub-probe: info: /dev/sda is a parent of /dev/sda. grub-probe: info: /dev/sda is present. grub-probe: info: Looking for /dev/sda. grub-probe: info: /dev/sda is a parent of /dev/sda. grub-probe: info: /dev/sda is present. grub-probe: info: Looking for /dev/sda. grub-probe: info: /dev/sda is a parent of /dev/sda. grub-probe: info: opening hostdisk//dev/sda. grub-probe: info: drive = 0. grub-probe: info: the size of hostdisk//dev/sda is 1953525168. grub-probe: error: unknown filesystem. lubuntu@lubuntu:~$ sudo grub-probe -v -d /dev/sdb grub-probe: info: cannot open `/boot/grub/device.map': No such file or directory. grub-probe: info: /dev/sdb is not present. grub-probe: info: Looking for /dev/sdb. grub-probe: info: /dev/sdb is a parent of /dev/sdb. grub-probe: info: /dev/sdb is present. grub-probe: info: Looking for /dev/sdb. grub-probe: info: /dev/sdb is a parent of /dev/sdb. grub-probe: info: /dev/sdb is present. grub-probe: info: Looking for /dev/sdb. grub-probe: info: /dev/sdb is a parent of /dev/sdb. grub-probe: info: opening hostdisk//dev/sdb. grub-probe: info: drive = 0. grub-probe: info: the size of hostdisk//dev/sdb is 125045424. grub-probe: error: unknown filesystem. lubuntu@lubuntu:~$ sudo grub-probe -vvv -d /dev/sda -t partmap grub-probe: info: cannot open `/boot/grub/device.map': No such file or directory. grub-probe: info: /dev/sda is not present. grub-probe: info: Looking for /dev/sda. grub-probe: info: /dev/sda is a parent of /dev/sda. grub-probe: info: /dev/sda is present. grub-probe: info: Looking for /dev/sda. grub-probe: info: /dev/sda is a parent of /dev/sda. grub-probe: info: /dev/sda is present. grub-probe: info: Looking for /dev/sda. grub-probe: info: /dev/sda is a parent of /dev/sda. grub-probe: info: opening hostdisk//dev/sda. grub-core/kern/disk.c:196: Opening `hostdisk//dev/sda'... grub-probe: info: drive = 0. grub-probe: info: the size of hostdisk//dev/sda is 1953525168. grub-probe: info: no partition map found for hostdisk//dev/sda. grub-core/kern/disk.c:295: Closing `hostdisk//dev/sda'. lubuntu@lubuntu:~$ sudo grub-probe -vvv -d /dev/sdb -t partmap grub-probe: info: cannot open `/boot/grub/device.map': No such file or directory. grub-probe: info: /dev/sdb is not present. grub-probe: info: Looking for /dev/sdb. grub-probe: info: /dev/sdb is a parent of /dev/sdb. grub-probe: info: /dev/sdb is present. grub-probe: info: Looking for /dev/sdb. grub-probe: info: /dev/sdb is a parent of /dev/sdb. grub-probe: info: /dev/sdb is present. grub-probe: info: Looking for /dev/sdb. grub-probe: info: /dev/sdb is a parent of /dev/sdb. grub-probe: info: opening hostdisk//dev/sdb. grub-core/kern/disk.c:196: Opening `hostdisk//dev/sdb'... grub-probe: info: drive = 0. grub-probe: info: the size of hostdisk//dev/sdb is 125045424. grub-probe: info: no partition map found for hostdisk//dev/sdb. grub-core/kern/disk.c:295: Closing `hostdisk//dev/sdb'. lubuntu@lubuntu:~$ sudo blkid /dev/sdb1: UUID="c52299f6-cd58-438f-ace8-29c01aabc0cb" TYPE="ext4" PARTUUID="a9f35515-01" /dev/sdc1: UUID="2015-01-23-17-18-24-00" LABEL="Lubuntu 15.04 amd64" TYPE="iso9660" PTUUID="17aeea70" PTTYPE="dos" PARTUUID="17aeea70-01" /dev/sdc2: SEC_TYPE="msdos" UUID="A011-B0D9" TYPE="vfat" PARTUUID="17aeea70-02" /dev/sdb5: UUID="44a7b82d-a953-47ad-943b-80b0cfd2cdfe" TYPE="swap" PARTUUID="a9f35515-05" /dev/loop0: TYPE="squashfs" /dev/zram0: UUID="97a6dca3-be0b-4d68-8284-d2cee99ed829" TYPE="swap" /dev/zram1: UUID="c559506c-4fbc-40be-8dd8-4f4712b4ab76" TYPE="swap" /dev/zram2: UUID="608b131b-973b-4293-b402-5019fd28ee13" TYPE="swap" /dev/zram3: UUID="37b8930c-60d0-440f-9372-e07376aca9a5" TYPE="swap" /dev/zram4: UUID="c7acb824-4541-4118-821c-4997057ce3fc" TYPE="swap" /dev/zram5: UUID="ee979ee4-299f-4849-b914-90b984aee5dc" TYPE="swap" /dev/zram6: UUID="1d709ffb-dd12-4ff4-a300-6eb696e592c2" TYPE="swap" /dev/zram7: UUID="67760570-8335-4e28-bbfa-25d1014ee9e9" TYPE="swap" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1414124 Title: install reports unable to install grub to /dev/sdb To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1414124/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
