Unable to detect CD-ROM (Sony CD-55E) - Help!

Unable to detect CD-ROM (Sony CD-55E) - Help!

Post by John Comfor » Mon, 18 Mar 1996 04:00:00




> Hi folks,

> I am having difficulty getting Linux to detect my CDROM. I recompiled
> my kernel 1.2.13 with IDE CD-ROM enabled, but still no success. I am
> able to access it quite easily from DOS and Windows. Here are the
> vital statistics:

> 1. CD-ROM : Sony CDU-55E ATAP IDE CD-ROM
> 2. It is installed as the master on the second IDE port (IDE1)
> 3. There are two hard drives on IDE0, both of which are detected by the Kernel.
> 4. kernel version : 1.2.13
> 5. I am using LOADLIN to boot the Kernel from DOS.
> 6. I tried passing the parameter hdd=cdrom as suggested by some with no results.

> When the machine boots, I get the following messages:

> Checking for CD...hdc: timeout: status=0x50
> hdc: timeout: status=0x50
> hdc: timeout: status=0x50
> hdc: timeout: status=0x50
> ide1: do_ide_reset: hdc: error (0x00?)
> hdc: timeout: status=0x50
> hdc: timeout: status=0x50
> ide1: do_ide_reset: hdc: error (0x00?)
> end_request: I/O error, dev 1600, sector 0
> hdc: timeout: status=0x51
> hdc: timeout: status=0x54
> hdc: timeout: status=0x51
> hdc: timeout: status=0x54
> end_request: I/O error, dev 1600, sector 64
> isofs_read_super: bread failed, dev 0x166 isoblknum 16
> Unable identify CD-ROM format
> no CD found

> This whole process takes about 2 minutes so, booting is very slow,
> needless to say.

> Any help is appreciated..
> --
> Andrew Sarangan


my two cents worth!  Put an append statement in your lilo.conf after the
label=linux line.
 
 
 

Unable to detect CD-ROM (Sony CD-55E) - Help!

Post by Andrew Sarang » Mon, 18 Mar 1996 04:00:00


Hi folks,

I am having difficulty getting Linux to detect my CDROM. I recompiled
my kernel 1.2.13 with IDE CD-ROM enabled, but still no success. I am
able to access it quite easily from DOS and Windows. Here are the
vital statistics:

1. CD-ROM : Sony CDU-55E ATAP IDE CD-ROM
2. It is installed as the master on the second IDE port (IDE1)
3. There are two hard drives on IDE0, both of which are detected by the Kernel.
4. kernel version : 1.2.13
5. I am using LOADLIN to boot the Kernel from DOS.
6. I tried passing the parameter hdd=cdrom as suggested by some with no results.

When the machine boots, I get the following messages:

Checking for CD...hdc: timeout: status=0x50
hdc: timeout: status=0x50
hdc: timeout: status=0x50
hdc: timeout: status=0x50
ide1: do_ide_reset: hdc: error (0x00?)
hdc: timeout: status=0x50
hdc: timeout: status=0x50
ide1: do_ide_reset: hdc: error (0x00?)
end_request: I/O error, dev 1600, sector 0
hdc: timeout: status=0x51
hdc: timeout: status=0x54
hdc: timeout: status=0x51
hdc: timeout: status=0x54
end_request: I/O error, dev 1600, sector 64
isofs_read_super: bread failed, dev 0x166 isoblknum 16
Unable identify CD-ROM format
no CD found

This whole process takes about 2 minutes so, booting is very slow,
needless to say.

Any help is appreciated..
--
Andrew Sarangan


 
 
 

1. New IDE-CD/extended IDE driver supports Sony 55E ATAPI CD-ROM!

I'm now successfully using my Sony CDU-55E CDROM drive (an ATAPI drive)
from Linux.  I'm using 1.1.75 plus the ide/ide-cd patch by Mike Lord and
Scott Snyder.  I understand that this code is now part of 1.1.76.  Cool!
This means that just about all my stuff is now supported by "standard Linux".

There are some rough edges.  As mentioned in the README.ide file in
/usr/src/linux/drivers/block, the mount command for the cdrom must be
just right; if a block size other than 2048 is used (or block size
isn't specified, weird errors result).  I initially thought this meant
it didn't quite work.  However, given the exact commands mentioned in
README.ide:

        ln -sf /dev/hdc /dev/cdrom
        mkdir /cd
        mount /dev/cdrom /cd -t iso9660 -o ro,block=2048

I am now successfully reading CDROMs.

Some folks mentioned that they got the older NEC-260 driver to work
provided they'd booted DOS first and used LOADLIN; I'm booting from
LILO and everything works fine.

Note that this drive isn't mentioned in the README.ide file.  Anyone
documenting this, please add the Sony 55E to the list of drives it
works with.

Thanks to all who sent me mail, and especially to Scott Snyder for writing
ide-cd.c !

--

Phone: +1 415 694 1729

2. test - please ignore

3. HELP! need cd-rom drivers for Sony 55E

4. problems binding to socket

5. Help! Sony 55E CD-Rom//dev/hdc

6. font questions

7. HELP: need linux cd-rom drivers for Sony 55E

8. compiling ghostscript on solaris2.5 x86

9. Not a block device error for Sony 55e CD-ROM

10. SONY CDU-55E CD-ROM Installation?

11. Soundcard for SOny CDU 55E (IDE ATAPI) CD-ROM

12. SONY Int/55e CD-ROM and LINUX???

13. Solaris 2.4 x86 supporting Sony 55E IDE CD-ROM?