090516 Dirk Heinrichs wrote: > Am Samstag, 16. Mai 2009 11:55:18 schrieb Philip Webb: >> I have got 2.6.25 to work again after enabling 'evdev' > evdev is completely unrelated to CD writing.
Yes, I know that: it was necessary in order to resurrect 2.6.25 after the big change in Xorg recently: I mentioned it in my OP. > OK, let's look at the interesting parts: >> 03:00.0 IDE interface: JMicron Technologies, Inc. >> JMB368 IDE controller Kernel driver in use: pata_jmicron > For this you need CONFIG_PATA_JMICRON=y, which you don't have. Aha ! -- it was present for 2.6.25 , so what happened to it ... ? > Let's go through the kernel config: >> # CONFIG_PCIEPORTBUS is not set > You really need to enable this (that is a PCI-Express machine, isn't it?). I didn't have in in 2.6.25 & it doesn't seem to do anything I want: do you have suggestions what it might help with ? >> CONFIG_BLK_DEV_FD=y > Do you have a floppy drive, still? Yes & lots of diskettes too (they ceased to be floppy long ago: grin)). I use one for quick back-ups of files I'm working on. >> CONFIG_HAVE_IDE=y > Useless. > Hmm, seems to be selected automatically, thus not that useless ;) > However, I can't even find it in menuconfig. >> # CONFIG_CHR_DEV_SG is not set > As written before: No SG, no write (to CD). No, I didn't have it in 2.6.25 & have just blanked a CD without it. The kernel help recommends 'No' unless you have a special reason. >> # CONFIG_ATA_SFF is not set > You need to enable this to make CONFIG_PATA_JMICRON visible. ... THAT's what happened to it !! This is the change in 2.6.29 (it could have been in 2.6.26-8 , which I didn't install). So having enabled these two options, I now get /dev/sr0 & can read & write (at least blank) a CD again. This is another trap in configuring a new kernel, ie some needed option is moved &/or needs another enabled to see it. Another trap I ran into briefly was a field needing a string, which looks as if all it needs is 'y/n' (also in 2.6.29). Thanks for the careful analysis. I will post a msg to the Forum, as there have been several inquiries there which seemed unresolved. -- ========================,,============================================ SUPPORT ___________//___, Philip Webb ELECTRIC /] [] [] [] [] []| Cities Centre, University of Toronto TRANSIT `-O----------O---' purslowatchassdotutorontodotca
