Hi all
I am facing a strange problem.
I am using a sun ultra10 spark machine.
first i took a 20gb IDE hard disk and installed solaris 5.8.
But due to some requirement i have to reinstall the OS but this time solaris 2.6.
and now the hard disk capacity is only showing 8gb.
Where the 12gb... (3 Replies)
I had an issue with a second hard disk in my machine. I have a sparc station running solaris 7. It was working fine but now it wont mount on boot up and when you try to mount it manually it gives an I/O error. I tried a different disk as a control which was fine. What I want to know is if my... (3 Replies)
:eek: I use this Solaris to run CMS a call acounting software package for my job. No one could run reports today because it said the this when you logged on
"The following file systems are low, and could adversely affect server performance:
File system /: 99%full"
Can some one please explain... (9 Replies)
Hi guys i have created a linux machine in virtual box now i want to add some hard disk space into it.
How would i do this.
Please help.
Machine details are as below
# lsb_release -a
LSB Version: :core-3.1-ia32:core-3.1-noarch:graphics-3.1-ia32:graphics-3.1-noarch
Distributor ID:... (7 Replies)
hi
I've a fresh installation of SCO 5.0.7 on the IDE hard disk.
For SCSI hard disk I can declare, for example blc disk driver using:
# mkdev hd 0 SCSI-0 0 blc 0but it works for IDE hard disk? (3 Replies)
When we write a programme,we declare variables and compiler allocates memory to them.I want to get access to the physical block number of hard-disk where actually the data is stored by the programme "
Some one help me out... (1 Reply)
When we write a programme,we declare variables and compiler allocates memory to them.I want to get access to the physical block number of hard-disk where actually the data is stored by the programme "
Some one help me out... (3 Replies)
Discussion started by: nagraz007
3 Replies
LEARN ABOUT REDHAT
losetup
LOSETUP(8) MAINTENANCE COMMANDS LOSETUP(8)NAME
losetup - set up and control loop devices
SYNOPSIS
losetup [ -e encryption ] [ -o offset ] loop_device file
losetup [ -d ] loop_device
DESCRIPTION
losetup is used to associate loop devices with regular files or block devices, to detach loop devices and to query the status of a loop
device. If only the loop_device argument is given, the status of the corresponding loop device is shown.
OPTIONS -d detach the file or device associated with the specified loop device.
-e encryption
enable data encryption. The following keywords are recognized:
NONE use no encryption (default).
XOR use a simple XOR encryption.
DES use DES encryption. DES encryption is only available if the optional DES package has been added to the kernel. DES encryption
uses an additional start value that is used to protect passwords against dictionary attacks.
-o offset
the data start is moved offset bytes into the specified file or device.
RETURN VALUE
losetup returns 0 on success, nonzero on failure. When losetup displays the status of a loop device, it returns 1 if the device is not con-
figured and 2 if an error occurred which prevented losetup from determining the status of the device.
FILES
/dev/loop0,/dev/loop1,... loop devices (major=7)
EXAMPLE
If you are using the loadable module you must have the module loaded first with the command
# insmod loop.o
The following commands can be used as an example of using the loop device.
dd if=/dev/zero of=/file bs=1k count=100
losetup -e des /dev/loop0 /file
Password:
Init (up to 16 hex digits):
mkfs -t ext2 /dev/loop0 100
mount -t ext2 /dev/loop0 /mnt
...
umount /dev/loop0
losetup -d /dev/loop0
If you are using the loadable module you may remove the module with the command
# rmmod loop
RESTRICTION
DES encryption is painfully slow. On the other hand, XOR is terribly weak.
AUTHORS
Original version: Theodore Ts'o <tytso@athena.mit.edu>
Original DES by: Eric Young <eay@psych.psy.uq.oz.au>
Linux Nov 24 1993 LOSETUP(8)