Recover deleted partition Post: 302545537

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Homework and Emergencies Emergency UNIX and Linux Support Recover deleted partition Post 302545537 by Chrisdot on Monday 8th of August 2011 06:06:46 PM

08-08-2011

Registered User

Well, that was standard intel RAID controler (onboard) I used to set up RAIDs on two 7200.12s.

I got Ubuntu live CD and may have any other distro - knoppix is no problem.

Under ubuntu I see whole hdd without any partition (under gparted, whole space is visible as 'unallocated'), do not know how to look into partition tables.

"Um, how do you set up two different raid volumes on two disks?"
After entering Intel Raid Option ROM I have 4 possibilities:
1. Create RAID Volume
2. Delete RAID Volume
3. Set disk to non-raid
4. Exit

After selecting 1. Create RAID Volume I can choose which RAID (1 or 0), how much space, and which HDDs.
If I make RAID0 sized 100GB I can select '1. Create RAID Volume' again and create another RAID Volume as long as space is available.
That way I created 2 Volumes (RAID0: 100GB, and RAID1 ~ 415GB).

On RAID0 I had about 4 partitions (linux home, linux root, boot, windows 7) and on RAID1 I had only 1 partition (ntfs).

Now I used 'testdisk' to find my lost partitions - without success. It found only 2 linux partitions without any files.
I do not want to recover any files from RAID0 - it is not possible.
But recovering from RAID1 should be easy...

Chrisdot

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LEARN ABOUT OPENSOLARIS

addpart

ADDPART(8)                                                     System Administration                                                    ADDPART(8)

NAME

       addpart - tell the kernel about the existence of a partition

SYNOPSIS

       addpart device partition start length

DESCRIPTION

       addpart  tells the Linux kernel about the existence of the specified partition.  The command is a simple wrapper around the "add partition"
       ioctl.

       This command doesn't manipulate partitions on a block device.

PARAMETERS

       device The disk device.

       partition
              The partition number.

       start  The beginning of the partition (in 512-byte sectors).

       length The length of the partition (in 512-byte sectors).

SEE ALSO

       delpart(8), fdisk(8), parted(8), partprobe(8), partx(8)

AVAILABILITY

       The addpart command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/.

util-linux                                                         January 2015                                                         ADDPART(8)