[PLUG] fdisk grub2 problem
ranjya at gmail.com
Sun Jul 11 08:43:48 PDT 2010
I had installed Ubuntu 10.04 on an extended partition using Live CD.
The Grub was installed on mbr.
Then I installed Mandriva 2010 and installed its grub on mbr.
I knew not that this grub and Ubuntu's grub are different.
Now I am unable to boot to Ubuntu inspite of adding it's entry to
Mandriva grub...I get the boot option but it does not boot.
So I tried to install the grub2 from Ubuntu to mbr
For this one has to mount and chroot where that partition is mounted.
But on doing
[ranjit at localhost ~]$ su
[root at localhost ranjit]# fdisk -l
Unable to seek on /dev/sda
[root at localhost ranjit]# sfdisk -l
Disk /dev/sda: 19457 cylinders, 255 heads, 63 sectors/track
Warning: extended partition does not start at a cylinder boundary.
DOS and Linux will interpret the contents differently.
Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0
Device Boot Start End #cyls #blocks Id System
/dev/sda1 * 0+ 1304 1305- 10482381 7 HPFS/NTFS
/dev/sda2 1305+ 5641 4337- 34836677 5 Extended
/dev/sda3 0 - 0 0 0 Empty
/dev/sda4 0 - 0 0 0 Empty
/dev/sda5 3407+ 4622 1216- 9767488+ 7 HPFS/NTFS
/dev/sda6 1305+ 3250- 1946- 15625216 83 Linux
/dev/sda7 3250+ 3406- 157- 1257472 82 Linux swap / Solaris
/dev/sda8 4623+ 5641 1019- 8185086 83 Linux
what to do now? How to mount the device?
Even when I tried to reinstall Ubuntu using a DVD with Ultimate edition it
cannot read the partition table.
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