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

alok pandey alok.rhct at gmail.com
Mon Apr 13 11:41:14 UTC 2009


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 at 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
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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)
00:03.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x4 Port 3 (rev 12)
00:04.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x8 Port 4-5 (rev 12)
00:05.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x4 Port 5 (rev 12)
00:06.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x8 Port 6-7 (rev 12)
00:07.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x4 Port 7 (rev 12)
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)
00:10.2 Host bridge: Intel Corporation 5000 Series Chipset FSB Registers (rev 12)
00:11.0 Host bridge: Intel Corporation 5000 Series Chipset Reserved Registers (rev 12)
00:13.0 Host bridge: Intel Corporation 5000 Series Chipset Reserved Registers (rev 12)
00:15.0 Host bridge: Intel Corporation 5000 Series Chipset FBD Registers (rev 12)
00:16.0 Host bridge: Intel Corporation 5000 Series Chipset FBD Registers (rev 12)
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)
00:1d.7 USB Controller: Intel Corporation 631xESB/632xESB/3100 Chipset EHCI USB2 Controller (rev 09)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev d9)
00:1f.0 ISA bridge: Intel Corporation 631xESB/632xESB/3100 Chipset LPC Interface Controller (rev 09)
00:1f.1 IDE interface: Intel Corporation 631xESB/632xESB IDE Controller (rev 09)
01:00.0 PCI bridge: Intel Corporation 6702PXH PCI Express-to-PCI Bridge A (rev 09)
02:08.0 SCSI storage controller: LSI Logic / Symbios Logic SAS1068 PCI-X Fusion-MPT SAS (rev 01)
03:00.0 PCI bridge: Broadcom EPB PCI-Express to PCI-X Bridge (rev c3)
04:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet (rev 12)
05:00.0 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express Upstream Port (rev 01)
05:00.3 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express to PCI-X Bridge (rev 01)
06:00.0 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express Downstream Port E1 (rev 01)
06:01.0 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express Downstream Port E2 (rev 01)
07:00.0 PCI bridge: Broadcom EPB PCI-Express to PCI-X Bridge (rev c3)
08:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet (rev 12)
0b:00.0 PCI bridge: Broadcom EPB PCI-Express to PCI-X Bridge (rev c3)
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)
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