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Operating Systems AIX Difference between /dev/hdisk and /dev/rhdisk Post 302825077 by jibujacob on Sunday 23rd of June 2013 09:56:03 AM
Old 06-23-2013
Hi bakunin,

I had gone through google prior to posting and couldnot identify whether my filesytem is made of the rawdisks or non-raw disks....

I could understand that 'c' indicated character and 'b' indicated block access. But still i couldnot decide on whether my machine uses raw devices or not...

Regards,
Jibu
 

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FDFORMAT(8)						       System Administration						       FDFORMAT(8)

NAME
fdformat - low-level format a floppy disk SYNOPSIS
fdformat [options] device DESCRIPTION
fdformat does a low-level format on a floppy disk. device is usually one of the following (for floppy devices the major = 2, and the minor is shown for informational purposes only): /dev/fd0d360 (minor = 4) /dev/fd0h1200 (minor = 8) /dev/fd0D360 (minor = 12) /dev/fd0H360 (minor = 12) /dev/fd0D720 (minor = 16) /dev/fd0H720 (minor = 16) /dev/fd0h360 (minor = 20) /dev/fd0h720 (minor = 24) /dev/fd0H1440 (minor = 28) /dev/fd1d360 (minor = 5) /dev/fd1h1200 (minor = 9) /dev/fd1D360 (minor = 13) /dev/fd1H360 (minor = 13) /dev/fd1D720 (minor = 17) /dev/fd1H720 (minor = 17) /dev/fd1h360 (minor = 21) /dev/fd1h720 (minor = 25) /dev/fd1H1440 (minor = 29) The generic floppy devices, /dev/fd0 and /dev/fd1, will fail to work with fdformat when a non-standard format is being used, or if the for- mat has not been autodetected earlier. In this case, use setfdprm(8) to load the disk parameters. OPTIONS
-n, --no-verify Skip the verification that is normally performed after the formatting. -V, --version Output version information and exit. -h, --help Display help and exit. SEE ALSO
fd(4), setfdprm(8), mkfs(8), emkfs(8) AUTHOR
Werner Almesberger (almesber@nessie.cs.id.ethz.ch) AVAILABILITY
The fdformat command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/. util-linux July 2011 FDFORMAT(8)
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