Hi,
Can someone answer to my question.I' totally new to Unix.
What is the command for removing the hard drive from the system?
Thanks a lot,
Puja (2 Replies)
:confused: ........I have a new hard drive and I need to copy ALL info from the old to the new. I would like to use the dd command. I know the command is as follows......
dd if=/dev/rdsk/c1t1d0s0 of=/dev/rdsk/????????
Where I have the question marks is the problem.
How do I find out what the... (4 Replies)
Hi
I have 2 75GB SCSI hard drives and 2 250GB SATA hard drives which are using RAID Level 1 respectively. I wana have both FTP and Apache installed on them as services. I'm wondering what's the best partitioning schem? I wana use FC3 as my OS, so, I thought I can use the 75GB hard drive as the /... (0 Replies)
I'm looking for a utility that will wipe data clean from a Solaris hard drive and make the data unreadable and unrecoverable. Any suggestions? Does SUN have something? (3 Replies)
Good day,
I have an rs/6000 server, model 7044-270. I bought a 2nd hard drive for it but im not sure its the right one. (fru:H13060) As you surely know, the 7044-270 hard drives are put in some sort of tray/carrier. There is a cable that will interface the HDD with the tray/carrier so the... (0 Replies)
Hi,
I just set up a raid Z array in solaris xpress and I notice that the drives feel pretty damn hot. I use speedfan to monitor the temperatures of the hard drives in XP. Is there a similar program for solrais? I assume there would be since the drives all have temp sensors in them, but I... (2 Replies)
Hi, I just downloaded and installed Ubuntu yesterday. It's the first time I have used it, so bear with me. I think I figured out how to get my sound drivers to work (X-Fi)... I had downloaded some OSS drivers, bout to go test them.
But what I really want to know is... I have 2 hard drive,... (2 Replies)
Hi guys, I have been looking around and searching for the past hour and did not see anything. but please forgive me if I missed something.
I had a sparc 10 ultra cpu die on me, I got a replacement server from a very generous guy here, now I am getting around to remounting my old hard drive with... (0 Replies)
Discussion started by: DrDarkMatter
0 Replies
LEARN ABOUT MINIX
fd
FD(4) Kernel Interfaces Manual FD(4)NAME
fd - floppy disk
DESCRIPTION
The fd* devices refer to the Floppy disk driver using the NEC PD765 floppy disk controller. These diskettes are arrays of 512 byte sec-
tors, although Minix always works with two sectors at a time due to its 1024 byte block size. You can read or write any number of bytes
however, Minix takes care of cutting and pasting incomplete blocks together.
The driver is normally configured for two floppy disk devices fd0 and fd1. It can handle two more, but it is unlikely that the average PC
can.
On the first access to an fd device (by open(2) or mount(2)), the driver will execute a series of read tests to determine the floppy type.
This works ok for all floppy types except the true 360k type, because it is indistinguishable from the 720k type. This only means that the
size of the floppy is not estimated right.
Bits 2-6 of the minor device number may be set to the floppy disk type to make it known to the driver what type of diskette it is reading
or writing. The non-auto devices should be used for formatting, or when one wants to be absolutely sure that the device is accessed right.
These devices exist for drive 0:
type device minor media
0 fd0 0 autodetect
1 pc0 4 360k, 5.25"
2 at0 8 1.2M, 5.25"
3 qd0 12 360k in a 720k, 5.25" drive
4 ps0 16 720k, 3.5"
5 pat0 20 360k in a 1.2M, 5.25" drive
6 qh0 24 720k in a 1.2M, 5.25" drive
7 PS0 28 1.44M, 3.5"
Type 4 may also be used for the rarely seen 720k, 5.25" floppies (type 2 made them obsolete fast.) Note that these "types" only describe
the floppies from a software point of view, type 1 and 4 drives use the same parameters.
If the format bit (bit 7) is set, then the driver interprets write commands as track formatting requests. This is used by the format(1)
command.
If the type bits are set to 28, 29, 30, or 31, then the driver uses a partition table found in sector 0 to partition the floppy. The par-
titions of fd0 may be accessed as fd0a through fd0d. See hd(4) for a description of the partition table, and associated ioctl commands.
FILES
/dev/fd[0-3], /dev/pc[0-3], /dev/at[0-3], /dev/qd[0-3], /dev/ps[0-3], /dev/pat[0-3], /dev/qh[0-3], /dev/PS[0-3], /dev/fd[0-3][a-d]
SEE ALSO format(1), hd(4), part(8).
BUGS
The driver does not know the size of a 360k diskette in a 360k 5.25" drive, because it uses the 720k parameters for it. So it will happily
try to read past the end making all kinds of interesting noises. It's a good thing these drives are practically obsolete.
The partition table is only read when the drive motor is off and only for an auto or partition device. The driver assumes that a floppy in
a drive with a running motor can't have been replaced all of a sudden.
AUTHOR
Kees J. Bot (kjb@cs.vu.nl)
FD(4)