dual boot 13.04 + 12.04 How can login in my first OS 13.04
I have deleted my /boot partition of 13.04 and I have rewritten it accidentally with/boot partition of 12.04 by re- installing 12.04, now I have two OS 13.04 and 2nd OS 12.04 but I have not dual-boot in grub menu I see only 12.04 not choice for 13.04. how can I log in my partition of 13.04?
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lts-Aspire-S3:~$ sudo update-grub
Generating grub.cfg ...
Found linux image: /boot/vmlinuz-3.5.0-30-generic
Found initrd image: /boot/initrd.img-3.5.0-30-generic
Found linux image: /boot/vmlinuz-3.5.0-23-generic
Found initrd image: /boot/initrd.img-3.5.0-23-generic
Found memtest86+ image: /memtest86+.bin
ERROR: sil: invalid metadata checksum in area 3 on /dev/sda
ERROR: sil: invalid metadata checksum in area 3 on /dev/sda
ERROR: sil: invalid metadata checksum in area 3 on /dev/sda
ERROR: sil: invalid metadata checksum in area 3 on /dev/sda
ERROR: sil: invalid metadata checksum in area 3 on /dev/sda
ERROR: sil: invalid metadata checksum in area 3 on /dev/sda
ERROR: sil: invalid metadata checksum in area 3 on /dev/sda
ERROR: sil: invalid metadata checksum in area 3 on /dev/sda
ERROR: sil: invalid metadata checksum in area 3 on /dev/sda
ERROR: sil: invalid metadata checksum in area 3 on /dev/sda
ERROR: sil: invalid metadata checksum in area 3 on /dev/sda
ERROR: sil: invalid metadata checksum in area 3 on /dev/sda
Found Ubuntu 13.04 (13.04) on /dev/sda2
done"
lts-Aspire-S3:~$ sudo fdisk -l
Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders, total 625142448 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0004ed07
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 976895 487424 83 Linux
/dev/sda2 976896 49805311 24414208 83 Linux
/dev/sda3 49807358 625141759 287667201 5 Extended
/dev/sda5 49807360 166991871 58592256 83 Linux
/dev/sda6 166993920 264648703 48827392 83 Linux
/dev/sda7 264650752 362305535 48827392 83 Linux
/dev/sda8 362307584 420903287 29297852 83 Linux
/dev/sda9 459964416 538087423 39061504 83 Linux
/dev/sda10 538089472 577148927 19529728 83 Linux
/dev/sda11 577150976 608399359 15624192 83 Linux
/dev/sda12 608401408 625141759 8370176 82 Linux swap / Solaris
/dev/sda13 420904960 459956223 19525632 83 Linux
Partition table entries are not in disk order
Disk /dev/sdb: 2 MB, 2097152 bytes
255 heads, 63 sectors/track, 0 cylinders, total 4096 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xffffffff
Disk /dev/sdb doesn't contain a valid partition table
Thank you for any help
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