well last week I adjusted (resized) partitions of my external harddisk by gparted. during the processing, the damn gnome3 crashed. I cannot see the partition any more.
I have still one windows machine(winxp), and tried finalData2.0. after about 30 hours scan/recovering, my 120G data in that partition were back. only 2-3 files lost.
hope this experience is useful 4 u. btw, I didn't write any data to that disk after the problem happened.
Recently our Server Room got burnt and we lost everything including a sunfire V880 server. I had a backup and restored it on our 2nd server. I mistakenly restored the etc folder from the burnt server too. After rebooting the 2nd server I can't get the root directory and other volumes mounting. I... (11 Replies)
Hi,
By mistake, executed the following command :
rm -rf *
and ALL files got deleted.
But I need to get back these files as they are very very important.
Please help me how to recover this file. Its Urgent for me please.
Thanks in advance. (6 Replies)
My Solaris system administrator has doing troubleshooting to my server. He has accidental remove the hardware raid. Is it possible to recover it back? (4 Replies)
dkio(4) Kernel Interfaces Manual dkio(4)Name
dkio - disk interface
Syntax
#include <sys/fs.h>
#include <sys/ioctl.h>
Description
This section describes the ioctl (input/output controller) codes for all disk drivers. The basic ioctl (input/output controller) format
is:
#include <sys/fs.h>
#include <sys/ioctl.h>
ioctl(fildes, code, arg)
struct pt *arg;
The applicable codes are:
DIOCGETPT Indicates to the driver to store the information in the current partition table in the address pointed to by arg. The file
descriptor must be opened on the raw partitions, a or c.
DIOCGETPT does not change the partition table, but it does provide access to the partition table information.
DIOCSETPT Indicates to the driver to modify the current partition table with the information pointed to by arg.
The file descriptor must be opened on the raw partitions, a or c.
If the a or c partition is not mounted, only the partition table in the driver is modified. This temporarily modifies the
partition table of the disk. The modifications are overwritten with the default table when the disk is turned off and on.
If the a or c partition is mounted, both the partition table in the driver and the partition table in the primary
superblock are modified. This permanently modifies the partition table of the disk. This is not recommended. To change a
partition table permanently, use the command.
DIOCDGTPT Indicates to the driver to store the default information of the current partition table in the address pointed to by arg.
The file descriptor must be opened on the raw partitions a or c.
DIOCGETPT does not change the partition table, but it does provide access to the partition table information.
DKIOCGET Allows the user to receive generic disk information as defined in structdevget.
DKIOCACC This code is defined in It is currently unused.
Restrictions
These restrictions apply when using the DIOCSETPT ioctl code:
o You must have superuser privileges.
o You cannot shrink or change the offset of a partition with a file system mounted on it or with an open file descriptor on the entire
partition.
o You cannot change the offset of the a partition.
Examples
This example shows how to use the DIOGETPT ioctl code to print the length and offset of the a partition of an RZ23 disk:
#include <sys/types.h>
#include <sys/param.h>
#include <sys/fs.h>
#include <sys/ioctl.h>
main()
{
struct pt arg;
int fd, i;
/* Open the "a" partition of the disk you want to see */
if ( (fd = open("/dev/rz0a",0)) < 0 ) {
printf("Unable to open device
");
exit(2);
}
/* Get the partition information */
if ( ioctl(fd,DIOCGETPT,&arg) < 0 )
printf("Error in ioctl
");
printf("Length Offset
");
for ( i = 0; i <= 7; i++ ) {
printf("%d %d
",arg.pt_part[i].pi_nblocks,
arg.pt_part[i].pi_blkoff );
}
}
FilesSee Alsorz(4), disktab(5), fstab(5), chpt(8), diskpart(8), fsck(8), MAKEDEV(8), mkfs(8), tunefs(8)
RISC dkio(4)
