10.10 Maveric install fails to read partitions

[dhysk]

This PC started on Ubuntu 9.04 and had been upgraded to 10.04. The problem was the last update I did yesterday bricked Linux... Instead of fixing it I figured I'd do a reinstall; it's a good way to clear disk space of useless crap anyway.

So to the problem.... I boot the live Ubuntu 10.10 CD and try to use the installer. Unfortunately the installer doesn't see my partitions. I need to install 10.10 over the old linux partition and I don't want to reinstall windows and I have a small partition I use as a temp backup.

I saw someone with a similar problem and he fixed it by manipulating his partition table. Unfortunately I don't see a problem with mine to fix. Maybe I'm blined but any help would be nice. Even a manual install method at this point would be nice.

Anyway here is a fdisk -lu




ubuntu@ubuntu:~$ sudo fdisk -lu /dev/sda

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: 0x00039aec

Device Boot Start End Blocks Id System
/dev/sda1 63 829644794 414822366 83 Linux
/dev/sda2 * 829644795 932043104 51199155 7 HPFS/NTFS
/dev/sda3 932043105 976768064 22362480 5 Extended
/dev/sda4 961634898 976768064 7566583+ 82 Linux swap / Solaris
/dev/sda5 932043231 961634834 14795802 83 Linux



Link to simular problem fix: http://www.rodsbooks.com/missing-parts/

[dhysk]

After backing up my partition table I deleted the swap partition and it worked after that. Than I used the installer resized some partitions and installed Maverick.

sfdisk complained about the swap partition not starting at the beginning of a cylinder or something. Not if that was the problem or not but it works now.

[berkanic]

I've got a similar issue, but my partition list does seem to have a problem, this is the fdisk output:


jgarcia@jgarcia-laptop:~$ sudo fdisk -lu /dev/sda

Disco /dev/sda: 250.1 GB, 250059350016 bytes
255 cabezas, 63 sectores/pista, 30401 cilindros, 488397168 sectores en total
Unidades = sectores de 1 * 512 = 512 bytes
Tamaño de sector (lógico / físico): 512 bytes / 512 bytes
Tamaño E/S (mínimo/óptimo): 512 bytes / 512 bytes
Identificador de disco: 0x00000080

Dispositivo Inicio Comienzo Fin Bloques Id Sistema
/dev/sda1 * 484183098 488392064 2104483+ c W95 FAT32 (LBA)
/dev/sda2 96390 125933534 62918572+ 7 HPFS/NTFS
/dev/sda3 165003615 488392064 161694225 f W95 Ext'd (LBA)
/dev/sda4 125933535 165003614 19535040 83 Linux
/dev/sda5 484183098 488392064 2104483+ dd Desconocido
/dev/sda6 480279303 484183034 1951866 82 Linux swap / Solaris
/dev/sda7 343550088 480263174 68356543+ b W95 FAT32
/dev/sda8 165003741 343533959 89265109+ 83 Linux

Las entradas de la tabla de particiones no están en el orden del disco


As it can be seen, /dev/sda5 is a duplicate of /dev/sda1. By the way, "Desconocido" means "Unknown".

Parted reports the problem:


sudo parted /dev/sda print
Error: No se puede tener particiones superpuestas.

Which means It can't be overlapped partitions.

How can I fix this issue safely? I really want to install 10.10!