Re: [IDE] trying to make MO drive work with ide-floppy/ide-cd

Jens Axboe (axboe@suse.de)
Tue, 6 May 2003 17:43:23 +0200


On Tue, May 06 2003, Jens Axboe wrote:
> > > You need to patch cdrom.c as well:
> > >
> > > if ((fp->f_mode & FMODE_WRITE) && !CDROM_CAN(CDC_DVD_RAM))
> > > return -EROFS;
> > >
> >
> > Simply removing that test doesn't get me working write support,
> > I still get:
> >
> > # mount -t ext2 /dev/hde /mnt/mo
> > mount: block device /dev/hde is write-protected, mounting read-only
> >
> > The disk is not write-protected, I checked.
>
> Shouldn't matter, the drive has to check for that particular bit (and it
> obviously does not). Are we still talking 2.5 or 2.4?

You also need to fix this in ide-cd:

if (CDROM_CONFIG_FLAGS(drive)->dvd_ram)
set_disk_ro(drive->disk, 0);

-- 
Jens Axboe

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