Datasheet

“main” (Installation and Administration) — 2004/6/25 — 13:29 — page 133 — #159
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3
Special Installation Procedures
3.7 ATAPI CD-ROM Hangs while
Reading
If your ATAPI CD-ROM is not recognized or it hangs while reading, this
is most frequently due to incorrectly installed hardware. All devices must
be connected to the EIDE controller in the correct order. The first device is
master on the first controller. The second device is slave on the first con-
troller. The third device should be master on the second controller. Addi-
tional devices should continue in this pattern.
It often occurs that there is only a CD-ROM besides the first device. The
CD-ROM drive is sometimes connected as master to the second controller
(secondary IDE controller). This is wrong and can cause Linux not to know
what to do with this gap. Try to fix this by passing the appropriate parame-
ter to the kernel (hdc=cdrom).
Sometimes one of the devices is just misjumpered. This means it is jumpered
as slave, but is connected as master, or vice versa. When in doubt, check
your hardware settings and correct them where necessary.
In addition, there is a series of faulty EIDE chipsets, most of which have
now been identified. There is a special kernel to handle such cases. See the
README in /boot of the installation CD-ROM.
If booting does not work immediately, try using the following kernel pa-
rameters:
hdx=cdrom x stands for a, b, c, d, etc., and is interpreted as follows:
a — Master on the first IDE controller
b — Slave on the first IDE controller
c — Master on the second IDE controller
An example of a parameter to enter is hdb=cdrom. With this param-
eter, specify the CD-ROM drive to the kernel, if it cannot find it itself
and you have an ATAPI CD-ROM drive.
idex=noautotune x stands for 0, 1, 2, 3, etc., and is interpreted as fol-
lows:
0 — First IDE controller
1 — Second IDE controller
An example of the parameter to enter is ide0=noautotune. This
parameter is often useful for (E)IDE hard disks.
133SUSE LINUX Enterprise Server