Here's a conundrum. I use a ThinkPad (T30) which has a slot on the side for the hard drive. It is very easy to swap this with another hard drive which I keep as a backup. Now when I copy the Linux partition from my (in use) hard drive to the backup one (in my UltraBay slot) it takes only 30 minutes. If instead I copy this partition to my storage drive (in my docking station's drive slot) and save it as a file, the same copying takes 2 and a half hours. How come so much longer? Any thoughts?
From the hard drive to the backup I use this:
From the hard drive to a storage drive I use:
Note that the file size is 18.0GB and the partition size is 28.6GB.
Last edited by pludi; 06-13-2011 at 09:32 AM..
Reason: Additional information added.
hi,
1) is logical partition the same as physical partition except that one is physical and the other is logical?
2) then it must a one to one ratio? (3 Replies)
I presently backup my multi-OS multi-paritition boot drive (fedora core 4/ext3, WinXPServer/NTFS, WinXPHome/FAT32) with the command:
telinit 1; cp /dev/sda /dev/sdb
And this works.
Is there a command to only copy a single partition instead of an entire device?
And what about the grub... (12 Replies)
I've created a partition with GNU Parted, how do I mount the partition?
The manual information at http://www.gnu.org/software/parted/manual/parted.html is good, but I am sure about how I mount the partition afterwards.
Thanks,
--Todd (1 Reply)
Scenario:
I would want to copy my / to /mnt, and to avoid recursion exclude /mnt.
cp -avx / /mnt
If i use the above i believe it would run recursively, and end up in mess. So how to do it ?!
Basically this / is sda1, and /mnt is sda2 and sda1 is where only OS is available & currently... (2 Replies)
I have found a question from the exercises of my study mat. The question is
"Why are there a in-core copy and a disk-copy of i-node block and super block?"
If any one know the proper answer then please send me..... (1 Reply)
This is now a larger script than I would customarily post. But many folks have become accustom to getting it off this forum.
Every couple of years I update my favorite scripts. This script is one that I use regularly and have posted older versions every couple of years. I noticed that it has... (3 Replies)
Gentleman,
Please move if I have chose the incorrect forum section. I am trying to move data that is not backed up from partition 1 to partition 2 on a SAN that has a GFS2 filesystem. Since the data is not backed up I am rsyncing this data and once verified I will delete from the source... (6 Replies)
hi all
while formatting hard disk i am getting following error.
Partition 1 ends at 266338338
It must be between 34 and 143374704.
label error: EFI Labels do not support overlapping partitions
Partition 8 overlaps partition 1.
Warning: error writing EFI.
Label failed.
I have formatted the... (2 Replies)
Hi Experts
I would like to know different between soft partition concept and hard partition concept on solaris.
Here is little explanation between soft partition concept and hard partition concept on solaris.
Soft Partition:
1TB total space available in storage in all mapped to the OS to... (2 Replies)
Hello All,
I have a Red Hat Linux 5.9 Server installed with one hard disk & 2 Partitions created on it as follows,
/boot - Linux Partition & another is
LVM - One VG & under that 5-6 Logical volumes(var,opt,home etc).
Here my requirement is to take out 1GB of space from LVM ( Any logical... (5 Replies)
Discussion started by: gr8_usk
5 Replies
LEARN ABOUT REDHAT
sd
SD(4) Linux Programmer's Manual SD(4)NAME
sd - Driver for SCSI Disk Drives
SYNOPSIS
#include <linux/hdreg.h> /* for HDIO_GETGEO */ #include <linux/fs.h> /* for BLKGETSIZE and BLKRRPART */
CONFIG
The block device name has the following form: sdlp, where l is a letter denoting the physical drive, and p is a number denoting the parti-
tion on that physical drive. Often, the partition number, p, will be left off when the device corresponds to the whole drive.
SCSI disks have a major device number of 8, and a minor device number of the form (16 * drive_number) + partition_number, where drive_num-
ber is the number of the physical drive in order of detection, and partition_number is as follows:
partition 0 is the whole drive
partitions 1-4 are the DOS "primary" partitions
partitions 5-8 are the DOS "extended" (or "logical") partitions
For example, /dev/sda will have major 8, minor 0, and will refer to all of the first SCSI drive in the system; and /dev/sdb3 will have
major 8, minor 19, and will refer to the third DOS "primary" partition on the second SCSI drive in the system.
At this time, only block devices are provided. Raw devices have not yet been implemented.
DESCRIPTION
The following ioctls are provided:
HDIO_GETGEO
Returns the BIOS disk parameters in the following structure:
struct hd_geometry {
unsigned char heads;
unsigned char sectors;
unsigned short cylinders;
unsigned long start;
};
A pointer to this structure is passed as the ioctl(2) parameter.
The information returned in the parameter is the disk geometry of the drive as understood by DOS! This geometry is not the physical
geometry of the drive. It is used when constructing the drive's partition table, however, and is needed for convenient operation of
fdisk(1), efdisk(1), and lilo(1). If the geometry information is not available, zero will be returned for all of the parameters.
BLKGETSIZE
Returns the device size in sectors. The ioctl(2) parameter should be a pointer to a long.
BLKRRPART
Forces a re-read of the SCSI disk partition tables. No parameter is needed.
The scsi(4) ioctls are also supported. If the ioctl(2) parameter is required, and it is NULL, then ioctl() will return -EINVAL.
FILES
/dev/sd[a-h]: the whole device
/dev/sd[a-h][0-8]: individual block partitions
SEE ALSO scsi(4)
1992-12-17 SD(4)