Hi ,

I'm partitioning a LUN using fdisk. It was a Netapp LUN. I'll have to correct the starting sector to 64 as recomended by netapp. I'm getting the following error while doing it


Command (m for help): p

Disk /dev/mapper/LUN: 2147 MB, 2147483648 bytes
67 heads, 62 sectors/track, 1009 cylinders
Units = cylinders of 4154 * 512 = 2126848 bytes

Device Boot Start End Blocks Id System

Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-1009, default 1):
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-1009, default 1009):
Using default value 1009

Command (m for help): p

Disk /dev/mapper/LUN: 2147 MB, 2147483648 bytes
67 heads, 62 sectors/track, 1009 cylinders
Units = cylinders of 4154 * 512 = 2126848 bytes

Device Boot Start End Blocks Id System
/dev/mapper/LUN1 1 1009 2095662 83 Linux

Command (m for help): x

Expert command (m for help): m
Command action
b move beginning of data in a partition
c change number of cylinders
d print the raw data in the partition table
e list extended partitions
f fix partition order
g create an IRIX (SGI) partition table
h change number of heads
m print this menu
p print the partition table
q quit without saving changes
r return to main menu
s change number of sectors/track
v verify the partition table
w write table to disk and exit

Expert command (m for help): b
Partition number (1-4): 1
New beginning of data (62-4191385, default 62): 64

Expert command (m for help): p

Disk /dev/mapper/LUN: 67 heads, 62 sectors, 1009 cylinders

Nr AF Hd Sec Cyl Hd Sec Cyl Start Size ID
1 00 1 1 0 66 62 1008 64 4191322 83
Partition 1 has different physical/logical beginnings (non-Linux?):
phys=(0, 1, 1) logical=(0, 1, 3)
2 00 0 0 0 0 0 0 0 0 00
3 00 0 0 0 0 0 0 0 0 00
4 00 0 0 0 0 0 0 0 0 00

Expert command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.

WARNING: Re-reading the partition table failed with error 22: Invalid argument.
The kernel still uses the old table.
The new table will be used at the next reboot.
Syncing disks.


I'm using Redhat 4.6

Linux 2.6.9-67.ELsmp #1 SMP Wed Nov 7 13:56:44 EST 2007 x86_64 x86_64 x86_64 GNU/Linux

can anyone help me to resolve this problem.

Thanks in advance

usually the LUN is a raw-disk unless it is formatted... you can try "partprobe" to avoid rebooting the system after working with fdisk.

if i did partprobe .. it was saying

A bug has been detected in GNU parted. Please email a bug report to bug-parted@gnu.org containing the version (1.6.19) and the following message:Assertion (head_size <= 63) at disk_dos.c:569 in function probe_partition_for_geom() failed.
A bug has been detected in GNU parted. Please email a bug report to bug-parted@gnu.org containing the version (1.6.19) and the following message:Assertion (head_size <= 63) at disk_dos.c:569 in function probe_partition_for_geom() failed.

perhaps, you've to reboot then... partprobe usually does the trick for most RH users...

what the error means is that "Disk Geometry probing failed" using this utility... because of the head size

Cheers !

actually .. my problem was not with partprobe.. i'm concerned abt the error

Partition 1 has different physical/logical beginnings (non-Linux?):
phys=(0, 1, 1) logical=(0, 1, 3)


please help me in solving this..

Thanks in advance

The problem obviously lies in the logical definition of the drive. In other words your partitioning scheme is messed up.

Delete that particular partition and try recreating it... (should I tell you to backup data if you have any?)

Try fdisk -l or use cfdisk if fdisk gives the same error. Hope that helps !