spacehippy
January 21st, 2012, 09:34 PM
I just attempted to install ubuntu 11.10 and although I did not go through with the installation, afterwards my computer stopped booting the pre-existing Windows 7. I got "Missing operating system" errors when I tried to boot from my hard drives immediately after that. It is possible that something in either the partition tables or the bootloader got messed up. I am able to run ubuntu from the CD but only if I have a memory key or external hard drive plugged in. In the installation software I can see that my two internal hard drives are there, but otherwise I have not figured out how to mount them when I'm running ubuntu from the CD.
During the installation procedure the software asked to unmount partitions that had been mounted. I confirmed. Before then, I could see the windows partitions but afterwards I stopped being able to. So initially I could see my hard drives from running the ubuntu CD, although the installation software did not automatically give me an option to install on them.
The result from
sudo fdisk -lis
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 / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x10000000
Device Boot Start End Blocks Id System
/dev/sda1 63 96389 48163+ de Dell Utility
/dev/sda2 98304 31555583 15728640 7 HPFS/NTFS/exFAT
/dev/sda3 * 31555584 1953544191 960994304 7 HPFS/NTFS/exFAT
Disk /dev/sdb: 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 / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/sdb doesn't contain a valid partition table # This looks important!
Disk /dev/sdc: 16.0 GB, 16008609792 bytes # Flash drive
255 heads, 63 sectors/track, 1946 cylinders, total 31266816 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: 0x00000000
Device Boot Start End Blocks Id System
/dev/sdc1 32 31266815 15633392 c W95 FAT32 (LBA)
boot-repair didn't solve the problem either but this is the output: http://paste.ubuntu.com/812068/
Most immediately I would just like to go back to being able to use Windows 7. My ultimate goal is to do an ubuntu/Windows 7 dual boot.
A part of this question is: how do I mount these partitions?
Many thanks!
During the installation procedure the software asked to unmount partitions that had been mounted. I confirmed. Before then, I could see the windows partitions but afterwards I stopped being able to. So initially I could see my hard drives from running the ubuntu CD, although the installation software did not automatically give me an option to install on them.
The result from
sudo fdisk -lis
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 / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x10000000
Device Boot Start End Blocks Id System
/dev/sda1 63 96389 48163+ de Dell Utility
/dev/sda2 98304 31555583 15728640 7 HPFS/NTFS/exFAT
/dev/sda3 * 31555584 1953544191 960994304 7 HPFS/NTFS/exFAT
Disk /dev/sdb: 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 / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/sdb doesn't contain a valid partition table # This looks important!
Disk /dev/sdc: 16.0 GB, 16008609792 bytes # Flash drive
255 heads, 63 sectors/track, 1946 cylinders, total 31266816 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: 0x00000000
Device Boot Start End Blocks Id System
/dev/sdc1 32 31266815 15633392 c W95 FAT32 (LBA)
boot-repair didn't solve the problem either but this is the output: http://paste.ubuntu.com/812068/
Most immediately I would just like to go back to being able to use Windows 7. My ultimate goal is to do an ubuntu/Windows 7 dual boot.
A part of this question is: how do I mount these partitions?
Many thanks!