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Full Discussion: What are the possible action regarding having bad sector in my ext4 root partition?
Special Forums Hardware What are the possible action regarding having bad sector in my ext4 root partition? Post 302564287 by jao_madn on Thursday 13th of October 2011 09:00:20 AM
Old 10-13-2011
Quote:
Originally Posted by Corona688
You might want to save the boot sector somewhere, too.

Code:
# sda being whatever disk your system sees it as.  sda, NOT sda1.
dd if=/dev/sda count=64 > bootsector.backup

And you're sure you don't need any of the other partitions?
Thanks again..

I already backup the MBR and partition table..

In addition to partition table..Can i restore the same partition table to another the same size HD. How about larger from the original..
 

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LEARN ABOUT DEBIAN

pvck

PVCK(8) 						      System Manager's Manual							   PVCK(8)

NAME

       pvck - check physical volume metadata

SYNOPSIS

       pvck [-d|--debug] [-h|--help] [-v|--verbose] [--labelsector] PhysicalVolume [PhysicalVolume...]

DESCRIPTION

       pvck checks physical volume LVM metadata for consistency.

OPTIONS

       See lvm for common options.

       --labelsector sector
	      By  default, 4 sectors of PhysicalVolume are scanned for an LVM label, starting at sector 0.  This parameter allows you to specify a
	      different starting sector for the scan and is useful for recovery situations.  For example, suppose the partition table is corrupted
	      or  lost	on  /dev/sda, but you suspect there was an LVM partition at approximately 100 MB.  This area of the disk may be scanned by
	      using the --labelsector parameter with a value of 204800 (100 * 1024 * 1024 / 512 = 204800):

	      pvck --labelsector 204800 /dev/sda

	      Note that a script can be used with --labelsector to automate the process of finding LVM labels.

SEE ALSO

       lvm(8), pvcreate(8), pvscan(8) vgck(8)

Sistina Software UK					 LVM TOOLS 2.02.95(2) (2012-03-06)						   PVCK(8)
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