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Installing the Red Hat V6.2 Distribution 2-5

2.2.2 Device Naming Conventions

The following table shows examples of boot device naming under SRM and

corresponding Linux device names. Under SRM the first two letters (dv, dq, dk,

and so on) designate a port or class driver, and the third letter (a, b, c, and so

on) is an ID for a storage adapter. The number (0, 1, and so on) is the device

unit number.

NOTE: Under SRM, the partition number on a disk device is not given as part

of the device name. As noted in Chapter 1, SRM knows nothing about

partitions or disklabels. Extra numbers displayed in the show device

output correspond to things like PCI bus and device numbers.

SRM Device Names and Corresponding Linux Device Names

SRM Linux Meaning

dva0 /dev/fd0 First floppy drive

dqa0 /dev/hda Primary IDE CD-ROM or hard disk as

Master

dqa1 /dev/hdb Primary IDE CD-ROM or hard disk as

slave

dqb0 /dev/hdc Secondary IDE CD-ROM or hard disk

as slave

dqb1 /dev/hdd Secondary IDE CD-ROM or hard disk

as slave

dka0 /dev/sda SCSI disk on first bus, Device 0

dka500 /dev/scd0 First CD-ROM or hard disk on a DS20

system

dra0 (see note) /dev/ rd/c0d0 First hard disk on a Mylex disk

controller. Not supported on RH6.2

distribution.

dwa0 or eia0 /dev/eth0 First Ethernet device

Note: The kernel that supports the Mylex RAID controller (SN-KZPBC-AA) can

be found at the following ftp site:

ftp://ftp.digital.com/pub/DEC/Linux-Alpha/mylex/

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Compaq DS10 Manual de usuario Pagina 15