Thank you for your reply. Apologies for taking so long to get back to you.
I don't remember exactly what my commands to create the image were. However, when I mount the image with my Mac it shows up as two different volumes which is how the original disk was formatted.
Here is the code I use to write the image to my uninitialized flash drive.
The result from dd:
Though running this dd command takes over an hour, the disk still ends up uninitialized. When I give it a formatted disk, it only writes the first volume in the disk image and not the second.
Hello all..
I have a Verbatim 2 GB flash drive. I also have Solaris 10 running on my workstation. If I am in the Windows environment, it detects the flash drive. But when I plug it while I am in solaris, nothing happens. How will solaris 10 detect my flash drive? What do I have to do?
any... (4 Replies)
hello forum..
i am using RHEL 4.0 and my system is dual boot.normally the usb flash drive should be auto mount , but in my system i am unable to mount the drive plz help...
i am a new user so plz give me in detail.
thank u in advance. (5 Replies)
Where can I get a driver that support usb flash drives for my unix machines. I need a solution to transfer data easily for techs. I am running C3750 and c8000 HP equipment.
Or is there a way to mount them and use them without adding drivers? thanks! (0 Replies)
I am working on an Ubuntu Linux 8.10 system that I do not want to reboot. For some reason, USB flash drives (mass storage devices) now no longer automount. I want to restore that functionality without rebooting. I can manually mount and unmount these things by doing:
cd /media
sudo mkdir thing... (4 Replies)
Hello,
I have an 8gb usb flash drive that I had high aspirations of using for a recovery/install/messing around multipurpose drive.
fdisk shows:
$ sudo fdisk -l /dev/sdb
password for woodnt:
Disk /dev/sdb: 8036 MB, 8036285952 bytes
255 heads, 63 sectors/track, 977 cylinders
Units =... (0 Replies)
I wanna install grub on my flash drive for rescue usage.
My computer installs winxp, and I have fedora12 installed in vmware. I did like this:
step1: format the flash drive as FAT in winXP.
step2: in fedora12, mount the flash drive on /media/flash
step3: excute the command: grub-install... (10 Replies)
Hello All,
I faced a unique issue. I have written a script for transferring backup data on my host machine to a USB Flash drive. The Flash drive must be of 16GB size. So, my script creates two primary partitionon the USB flash drive. I require approx 5900 cylinders for the first partition on... (8 Replies)
I'd like to make bootable USB flash with 12.04 desktop on it with some additional packages and customizations, such as added language.
What I tried so far - I went through pendrivelinux.com ISO to USB program and have working bootable USB with 12.04 desktop on it. The problem is all my changes... (8 Replies)
Discussion started by: migurus
8 Replies
LEARN ABOUT MOJAVE
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 */
CONFIGURATION
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:
+3 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 reread of the SCSI disk partition tables. No parameter is needed.
The SCSI ioctl(2) operations are also supported. If the ioctl(2) parameter is required, and it is NULL, then ioctl(2) fails with
the error EINVAL.
FILES
/dev/sd[a-h]
the whole device
/dev/sd[a-h][0-8]
individual block partitions
COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
Linux 2017-09-15 SD(4)