Post screenshot of disk management with all fields visible (from within win7).
GRUB has been installed in MBR or in "volume bootsector" (if you know)?
In linux:
Any readable code like "Grub" or "Missing operating system"?Code:sudo dd if=/dev/sda bs=512 count=1| hexdump -c
UBUNTU installed before you installed WIN7 or vise versa?
Last edited by Kaktussoft; 28 Aug 2012 at 15:47.
I believe GRUB is in MBR, of disk1, but I am not sure.
Ubuntu (Disk1) was installed after Win7 (Disk0), but I recently changed my second disk (disk1) for a larger one and had to rebuild GRUB after copying the partitions in the older disk.
I donīt know if it matters, but also upgraded processor from a Pentium D to a Core i7 and Mother Board from D945PSN to DP67BA
Thanks for your quick reply
In elevated command prompt:
D: is not active anymore in disk management now? Try to boot in win7 and ubuntu. Works?Code:diskpart sel vol d: inactive exit
Ok, in Ubuntu now.
Code:mario@mario-desktop:~$ sudo dd if=/dev/sda bs=512 count=1| hexdump -c [sudo] password for mario: 1+0 records in 1+0 records out 512 bytes (512 B) copied0000000 � c 220 � � \0 | � P \a P 037 � � 033 | , 5.1943e-05 s, 9.9 MB/s 0000010 � 033 006 P W � � 001 � � � � � \a � 004 0000020 8 n \0 | \t u 023 203 � 020 � � � 030 213 0000030 203 � 020 I t 031 8 , t � � � \a � \a 213 0000040 � � < \0 t � � \a \0 � 016 � 020 � � 210 0000050 N 020 � F \0 s * � F 020 \0 200 001 \0 \0 \0 0000060 \0 \0 \0 \0 � � 220 220 � � 200 t 005 � � p 0000070 t 002 � 200 � y | \0 \0 1 � 216 � 216 � � 0000080 \0 � � d | < � t 002 210 � R � 027 004 0000090 200 ' 003 t 006 � 210 } � 027 001 � 005 | � A 00000a0 � � U � 023 Z R r = 201 � U � u 7 203 00000b0 � 001 t 2 1 � 211 D 004 @ 210 D � 211 D 002 00000c0 � 004 020 \0 f 213 036 \ | f 211 \ \b f 213 036 00000d0 ` | f 211 \ \f � D 006 \0 p � B � 023 r 00000e0 005 � \0 p � v � \b � 023 s \r � � 200 017 00000f0 204 � \0 � 223 } � 202 \0 f 017 � � 210 d � 0000100 @ f 211 D 004 017 � � � � 002 210 � 210 � @ 0000110 211 D \b 017 � � � � 002 f 211 004 f � ` | 0000120 f \t � u N f � \ | f 1 � f � 4 210 0000130 � 1 � f � t 004 ; D \b } 7 � � 210 0000140 0 � � � 002 \b � 210 � Z 210 � � \0 p 216 0000150 � 1 � � 001 002 � 023 r 036 214 � ` 036 � \0 0000160 001 216 � 1 � � \0 200 216 � � � � 037 a � 0000170 & Z | � 216 } � 003 � 235 } � 4 \0 � � 0000180 } � . \0 � 030 � � G R U B \0 G e 0000190 o m \0 H a r d D i s k \0 R e a 00001a0 d \0 E r r o r \r \n \0 � 001 \0 � 016 00001b0 � 020 � < \0 u � � � \t V 030 \0 \0 200 001 00001c0 001 \0 \a � � � ? \0 \0 \0 200 � j \n \0 � 00001d0 � � \f � � � � � j \n 025 ! � 002 \0 � 00001e0 � � \a � � � \0 � 1 \r \0 � 004 005 \0 � 00001f0 � � 203 � � � \0 H p 7 \0 030 � 002 U � 0000200 mario@mario-desktop:~$
When you boot you see a boot menu. In that menu you select win7 or ubuntu. But is it a grub bootmenu or a win7 bootmenu?
Win7 bootmenu looks like this:
It is an Ubuntu GRUB menu
ubuntu is in /dev/sdb4
*** sorry wrong place disregard sdb4
/dev/sda4 930105344 976773119 23333888 83 Linux
Code:Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x185609d3 Device Boot Start End Blocks Id System /dev/sda1 * 63 174771134 87385536 7 HPFS/NTFS/exFAT Partition 1 does not start on physical sector boundary. /dev/sda2 174771135 221375699 23302282+ c W95 FAT32 (LBA) Partition 2 does not start on physical sector boundary. /dev/sda3 221376512 305588223 42105856 7 HPFS/NTFS/exFAT /dev/sda4 930105344 976773119 23333888 83 Linux Disk /dev/sdb: 82.3 GB, 82348277760 bytes 255 heads, 63 sectors/track, 10011 cylinders, total 160836480 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: 0xed8eed8e Device Boot Start End Blocks Id System /dev/sdb1 * 63 160826714 80413326 7 HPFS/NTFS/exFAT
Yes, I mixed up sda and sdb
Windows 7 is in dev/sdb1
Ubuntu is in dev/sda4
I thought they were in sda1 and sdb4 respectively
Sorry for the mix up
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