On Mon, Jan 24, 2005 at 11:04:03PM -0000, Chris Carr wrote: > Progress!!
Progress indeed, thanks for the update. > I was inspired by this: > > >I had a look at the source for the medley driver, and it doesn't seem > >to have been updated for quite some time, and the latest version seems > >to be both in the kernel.org and debian kernels. So it is likely that > >knoppix has the same driver. I confirmed that medly.c was the same for > >all of these kernels. > > So I played around with the D-I, rebooting a bunch of times. I found > that I can actually get the medley driver working, if I boot into expert > mode (2.4) and modprobe the following modules in this exact order: > > ide-core > siimage > ide-detect > ide-disk > ataraid > medley > > - it finds the RAID set then, just like Knoppix. BUT, of course, it > finds them as hda and hdc, and I can't see my CD-ROMs (which are on a > via82cxxx controller - modprobing via82cxxx at this point does nothing, > since ide-detect has already run). > > If I go the sata_sil route, the modules are > > scsi_mod > libata > sata_sil > sd_mod > ataraid > medley > > In this setup medley does not work - but I think the reason is simple: > it's not looking for scsi disks! I've not checked the source, but it > stands to reason that it's only expecting to look for raid arrays on > devices beginning 'hd' (and the sata_sil/sd_mod route enumerates the > drives as sda and sdb). I just took a look at the source. And as it stands the list of devices to examine as potential members of an array is defined in problelist which only includes IDE devices (drivers/ide/raid/medley.c line ~195). Furthermore, medley_get_metadata() (drivers/ide/raid/medley.c line ~450) appears to be ide-specific. I am not sure what the implications of adding SCSI support would be, but I your assumption that medley.o does not handle SCSI disks is correct. > So my problem is not with medley at all, it's with ide-detect. If I load > ide-detect after loading both siimage AND via82cxxx, only the last set > of devices are found (ie. if I modprobe siimage first then via82cxxx, > only the CD-ROMs are round; if I modprobe via82cxxx first then siimage, > only the SATA drives are found). That definately bares futher investigation. Though I am tempted to think that it might be a problem with having both siimage and via82cxxx loaded, rather than with ide-detect. But in any case it is clearly a problem. -- Horms -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
