Re: Problem with compiled kernel 2.6.26fc+ unable to identify cdrom format

[alok pandey <alok rhct gmail com>]

HI,
Still waiting for response, putting some more information for your better understanding.

Exact error: in dmesg
scsi 4:0:0:0: Direct-Access     Dell     Virtual  Floppy  123  PQ: 0 ANSI: 0 CCS
scsi 3:0:0:0: CD-ROM            Dell     Virtual  CDROM   123  PQ: 0 ANSI: 0 CCS
sd 4:0:0:0: [sdc] Attached SCSI removable disk
 "ISOFS: Unable to identify CD-ROM format"

Btw, I can mount  ISO image successfully (i.e mount -t iso9660 -o lo /path/to/image /mount/point), So i am sure FS is well supported. 

Attaching my config files as.
LSPCI.txt :-> output of LSPCI command
image-kernel-smpx86.conf:-> Kernel config paramater
Bootfloppy-kernelXX.conf:->Boot image kernel config

I have compiled the kernel to support cd-rom with my best linux knowledge, but unfortunately it's not working for me. I am quit sure that my kernel have all the required option enabled , it seems to me as kernel bug.

You comment/suggestion is needed. Plz help.

Thanks
Alok Pandey

On 4/10/09, alok pandey <alok rhct gmail com> wrote:

HI All,
Recently  I compiled a linux fedora kernel (2.6.27fc_x86_64bit) for stata support. After successful compilation and installation with new kernel, :-
  --System is not able to mount cdrom.
 --Always generate error, "medium not found"
--dmesg have an  entry some thing like " unable to understand cdrom format"

I don't know what went wrong, but i cross checked my new kernel config and my new kernel have following support:- (in respect of cdrom)
 --SCSI device drive support [*]
--iso9660 file system support [*]
--ata-ide device support [*]

I am attaching my kernel.conf file as attachment for better understanding. let me know if some other information is need in order to understand my issue.

Also,
I am highly confused in selection of modules as static or dynamic. It will be great help if any one can suggest me the rule/law behind dynamic[M] and static[*] selection of kernel modules.

*I just need to ask , what if i select all kernel modules as lodable modules [M] instead of static modules [*] or vice versa !!

Thanks
-A

-- 
Thanks
ALOK PANDEY 
00:00.0 Host bridge: Intel Corporation 5000X Chipset Memory Controller Hub (rev 12)
00:02.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x4 Port 2 (rev 12)
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00:10.0 Host bridge: Intel Corporation 5000 Series Chipset FSB Registers (rev 12)
00:10.1 Host bridge: Intel Corporation 5000 Series Chipset FSB Registers (rev 12)
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00:1c.0 PCI bridge: Intel Corporation 631xESB/632xESB/3100 Chipset PCI Express Root Port 1 (rev 09)
00:1d.0 USB Controller: Intel Corporation 631xESB/632xESB/3100 Chipset UHCI USB Controller #1 (rev 09)
00:1d.1 USB Controller: Intel Corporation 631xESB/632xESB/3100 Chipset UHCI USB Controller #2 (rev 09)
00:1d.2 USB Controller: Intel Corporation 631xESB/632xESB/3100 Chipset UHCI USB Controller #3 (rev 09)
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07:00.0 PCI bridge: Broadcom EPB PCI-Express to PCI-X Bridge (rev c3)
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0c:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet (rev 12)
0e:00.0 PCI bridge: Broadcom EPB PCI-Express to PCI-X Bridge (rev c3)
0f:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet (rev 12)
11:0d.0 VGA compatible controller: ATI Technologies Inc ES1000 (rev 02)

Attachment: image-kernel-smp-x86_64.conf
Description: Binary data

Attachment: bootfloppy-kernel-uni-x86_64.conf
Description: Binary data