2001-02-26 00:38:25

by Derrik Pates

[permalink] [raw]
Subject: IDE floppy drives and devfs - no device nodes if no disk loaded at boot

Subject says about all there is to say. I have figured out that IDE drives
are enumerated as part of the boot-time partition check in
fs/partitions/check.c, but if I don't have something loaded at boot time
(IDE SuperDisk in PC at home, IDE Zip 100 in G3 tower at work), I never
get device nodes at all with devfs. Something really needs to be done
about this, IMHO.

Derrik Pates | Sysadmin, Douglas School| _ #linuxOS on EFnet
[email protected] | District (dsdk12.net) | | | and now OPN too!
Student @ South Dakota School of Mines | __| |___ _ _ _ ___ _ _ ____
& Technology (http://www.sdsmt.edu) |/ _ / -_) ' \ '\/ _ \ ' \ (____)
UNIX: Because you want to USE your computer.|\___,\___|_||_||_\___/_||_|


2001-02-26 02:33:34

by Jeremy Jackson

[permalink] [raw]
Subject: Re: IDE floppy drives and devfs - no device nodes if no disk loaded atboot

Derrik Pates wrote:

> Subject says about all there is to say. I have figured out that IDE drives
> are enumerated as part of the boot-time partition check in
> fs/partitions/check.c, but if I don't have something loaded at boot time
> (IDE SuperDisk in PC at home, IDE Zip 100 in G3 tower at work), I never
> get device nodes at all with devfs. Something really needs to be done
> about this, IMHO.

hdparm's got a cmd line switch to unregiser/register and ide interface.
It tried it *once* and it just complained about cmd line args being wrong...
i'll have to look into it more. when working it should help your situation.

2001-02-26 03:11:04

by Andre Hedrick

[permalink] [raw]
Subject: Re: IDE floppy drives and devfs - no device nodes if no disk loaded atboot


I have HOTSWAP ATA completed, but will release after IDF.
It will be used to blow MircoSoft out of the water at IDF.

On Sun, 25 Feb 2001, Jeremy Jackson wrote:

> Derrik Pates wrote:
>
> > Subject says about all there is to say. I have figured out that IDE drives
> > are enumerated as part of the boot-time partition check in
> > fs/partitions/check.c, but if I don't have something loaded at boot time
> > (IDE SuperDisk in PC at home, IDE Zip 100 in G3 tower at work), I never
> > get device nodes at all with devfs. Something really needs to be done
> > about this, IMHO.
>
> hdparm's got a cmd line switch to unregiser/register and ide interface.
> It tried it *once* and it just complained about cmd line args being wrong...
> i'll have to look into it more. when working it should help your situation.
>
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Andre Hedrick
Linux ATA Development
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