On Tue, Mar 31, 2015 at 4:17 PM, Stefan Lamby <[email protected]> wrote: >> > OK, so grub.cfg on /dev/sda1 refers to /dev/sdb2. Am I right that >> > /dev/sda1 is your original /boot? > > Yes, sda is the hd used originally. > ... > > root@kubuntu:~# mount -r /dev/sda2 /mnt > root@kubuntu:~# ls -l /mnt/ > total 138250 > -rw-r--r-- 1 root root 1207386 Jan 15 18:22 abi-3.16.0-30-generic > -rw-r--r-- 1 root root 1207327 Mar 10 21:12 abi-3.16.0-31-generic > -rw-r--r-- 1 root root 1207327 Mar 13 11:12 abi-3.16.0-33-generic > -rw-r--r-- 1 root root 171768 Jan 15 18:22 config-3.16.0-30-generic > -rw-r--r-- 1 root root 171802 Mar 10 21:12 config-3.16.0-31-generic > -rw-r--r-- 1 root root 171827 Mar 13 11:12 config-3.16.0-33-generic > drwxrwxr-x 2 root root 1024 Feb 21 18:27 efi > drwxr-xr-x 5 root root 1024 Mar 24 09:41 grub > -rw-r--r-- 1 root root 29216458 Feb 21 19:04 initrd.img-3.16.0-30-generic > -rw-r--r-- 1 root root 29225033 Mar 15 08:53 initrd.img-3.16.0-31-generic > -rw-r--r-- 1 root root 29232450 Mar 24 09:41 initrd.img-3.16.0-33-generic > drwx------ 2 root root 12288 Feb 21 18:27 lost+found > -rw-r--r-- 1 root root 176500 Mar 12 2014 memtest86+.bin > -rw-r--r-- 1 root root 178176 Mar 12 2014 memtest86+.elf > -rw-r--r-- 1 root root 178680 Mar 12 2014 memtest86+_multiboot.bin > -rw------- 1 root root 3511040 Jan 15 18:22 System.map-3.16.0-30-generic > -rw------- 1 root root 3511419 Mar 10 21:12 System.map-3.16.0-31-generic > -rw------- 1 root root 3512061 Mar 13 11:12 System.map-3.16.0-33-generic > -rw-r--r-- 1 root root 6345120 Feb 21 18:33 vmlinuz-3.16.0-30-generic > -rw-r--r-- 1 root root 6347032 Feb 19 16:18 > vmlinuz-3.16.0-30-generic.efi.signed > -rw------- 1 root root 6346448 Mar 10 21:12 vmlinuz-3.16.0-31-generic > -rw------- 1 root root 6348376 Mar 15 08:53 > vmlinuz-3.16.0-31-generic.efi.signed > -rw------- 1 root root 6348624 Mar 13 11:12 vmlinuz-3.16.0-33-generic > -rw------- 1 root root 6350552 Mar 24 09:41 > vmlinuz-3.16.0-33-generic.efi.signed > root@kubuntu:~# ls -l /mnt/grub/ > total 2381 > drwxr-xr-x 2 root root 1024 Feb 21 18:40 fonts > -r--r--r-- 1 root root 9790 Mar 24 09:41 grub.cfg > -rw-rw-r-- 1 root root 1024 Mar 29 12:46 grubenv > drwxr-xr-x 2 root root 1024 Feb 21 18:40 locale > -rw-r--r-- 1 root root 2405285 Feb 21 18:40 unicode.pf2 > drwxr-xr-x 2 root root 8192 Feb 21 18:40 x86_64-efi > > Yes, those partitions sda1,2,3 are the ones originally used. The ubuntu > installer > has overwritten sda even it was told to use sdb
I do not know if it actually overwrote sda. Last change was apparently 24 March when new kernel 3.16.0-33 was installed. Did you update your "original" installation on this day? Rather it looks like second installation overwrote bootloader in /dev/sda1. So try following 1. boot into GRUB CLI with single disk, with USB 2. Execute insmod part_gpt insmod ext2 chainloader (hd0,gpt2)/grub/x86_64-efi/core.efi boot With some luck you should get your original grub menu. _______________________________________________ Help-grub mailing list [email protected] https://lists.gnu.org/mailman/listinfo/help-grub
