Thank for your reply, Mr. Jordan. But...
ubu...@ubuntu:~$ sudo fdisk -l Unable to seek on /dev/sda However, ubu...@ubuntu:~$ sudo dmraid -r /dev/sdb: nvidia, "nvidia_acajefec", stripe, ok, 488397166 sectors, data@ 0 /dev/sda: nvidia, "nvidia_acajefec", stripe, ok, 488397166 sectors, data@ 0 So do you have an idea for how to make fdisk see my RAID array? Thank you very much. On Sun, Dec 26, 2010 at 1:01 AM, Jordan Uggla <[email protected]>wrote: > On Fri, Dec 24, 2010 at 9:50 PM, iono sphere <[email protected]> > wrote: > > I have installed Ubuntu 10.10 on a software RAID 0. I wiped out the whole > > two hard disks and install it as a single partition. So one partition for > > the whole system. However, I need to install Windows back, so I use the > > partition program GParted (use kpartx to allow it to see RAID 0) to split > > things up. For better indication of the partition condition, please refer > to > > GParted.png in the attachment of this mail. The partition > > /dev/mapper/nvidia_acajefec1 is of course Ubuntu 10.10, and > > /dev/mapper/nvidia_acajefec3 is Windows 7. > > > > Windows 7, once installed, will wipe GRUB's setting away and make itself > the > > only OS bootable. So I need a way to restore GRUB. > > > > I tried to follow the instruction around the Internet, and I cannot > restore > > GRUB because GRUB can't find the disk. Here are what I did in the > console: > > > > ubu...@ubuntu:~$ grub > > Probing devices to guess BIOS drives. This may take a long time. > > > > [ Minimal BASH-like line editing is supported. For > > the first word, TAB lists possible command > > completions. Anywhere else TAB lists the possible > > completions of a device/filename. ] > > grub> root (hd0,0) > > root (hd0,0) > > > > Error 21: Selected disk does not exist > > grub> find (hd0,0) > > find (hd0,0) > > > > Error 15: File not found > > grub> find /boot/grub/stage1 > > find /boot/grub/stage1 > > > > Error 15: File not found > > grub> find /dev/mapper/nvidia_acajefec1 > > find /dev/mapper/nvidia_acajefec1 > > > > Error 15: File not found > > > > So in this case, is there a way to make GRUB see software RAID 0? GParted > > can see it with kpartx, so what about GRUB? > > > > Thank you in advance. > > > > _______________________________________________ > > Help-grub mailing list > > [email protected] > > http://lists.gnu.org/mailman/listinfo/help-grub > > > > > > Those instructions are for grub legacy, for grub2 follow this guide: > http://grub.enbug.org/Grub2LiveCdInstallGuide . > > -- > Jordan Uggla (Jordan_U on irc.freenode.net) >
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