Very Computer

I just installed a new NEC-CDR510 cdrom and am unable to mount it. My
configuration is:

kernel 1.1.64
GCC 2.6.1

I compiled with the SCSI driver options (all of them) and with all of
the ADAPTEC drivers. I also compiled with the iso9660 filesystem format
support. This is what it looks like when I boot:

LILO boot: Linux aha152x=0x340,11,7,1

[...]

aha152x: processing commandline: ok
detection complete
aha152x: vital data: PORTBASE=0x340, IRQ=11, SCSI ID=7, reconnect=enabled, parity=enabled
scsi0 : Adaptec 152x SCSI driver; $Revision: 1.4 $
scsi : 1 hosts.
  Vendor: N C       Model: C - O   R V : 0   Rev: 2 5
  Type:   CD-ROM                             ANSI SCSI revision: 02
Detected scsi CD-ROM sr0 at scsi0, id 0, lun 0
scsi : detected 1 SCSI cdrom total.
Scd sectorsize = 2048 bytes

[...]

I try to mount the cdrom:

# mount -r -t iso9660 /dev/sr0 /cdrom
mount: wrong fs type, /dev/sr0 already mounted, /cdrom busy, or other error

Here are some /var/adm/messages entries.

Unable to identify CD-ROM format.
VFS: Can't find an ext2 filesystem on dev 11/0.
[MS-DOS FS Rel. 12,FAT 0,check=n,conv=b,uid=0,gid=0,umask=022,bmap]
[me=0x0,cs=0,#f=0,fs=0,fl=0,ds=0,de=0,data=0,se=0,ts=0,ls=0]
VFS: Can't find a valid MSDOS filesystem on dev 0x0b00.
Unable to identify CD-ROM format.
HPFS: hpfs_read_super: Not HPFS

I had a Chinon-CDS535 and found out that it had a problem with lun requests.
After recompiling my kernel with NO_MULTI_LUN in scsi.h I was able to at least
boot. I had the exact same problems with that cdrom too.

I did notice that my SB16 has an adaptec aic-6360L SCSI controller, I've seen
the SB16 referenced as an AHA152x in all of the Linux docs I've read.

Any help is really appreciated.

- James
--
// James Klicman                         CCnet Communications 510.988.0680

// http://www.ccnet.com

: I try to mount the cdrom:

: # mount -r -t iso9660 /dev/sr0 /cdrom
: mount: wrong fs type, /dev/sr0 already mounted, /cdrom busy, or other error

Try it with "mount -o defaults,ro -t iso9660 /dev/sr0 /cdrom"

mario

: Any help is really appreciated.

: - James
: --
: // James Klicman                         CCnet Communications 510.988.0680

: // http://www.ccnet.com

i.e
behaving like as if one was expecting a 16 bit data xfer but only 8 bit xfer
happening.
I fixed this by changing the driver source aha152x.c where the loop for
getting data  (look for the code around area with function call insw)

OLD LOGIC
Get X bytes from port = loop (X/2) times doing get word  (insw)
                         + remainder byte if present (inb)

TO
Get X bytes from port = loop X times doing get byte  (inb)

After changing the code in the above fashion everything worked.
i.e I was able to mount and read Linux Quarterly CD ROM (Morse Spring 94)
which is an iso9660 file system.

: I just installed a new NEC-CDR510 cdrom and am unable to mount it. My
: configuration is:

: kernel 1.1.64
: GCC 2.6.1

: # mount -r -t iso9660 /dev/sr0 /cdrom
: mount: wrong fs type, /dev/sr0 already mounted, /cdrom busy, or other error

I think your problem is that you MUST mount the CD as read only. I know
that's not what the error message is saying, but try this...

        mount -t iso9660 -o ro /dev/sr0 /cdrom

Let me know if it works...

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