Bug 65889
| Summary: | adding cdrw drive after installation doesn't enable ide-scsi | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Retired] Red Hat Linux | Reporter: | Glen A. Foster <glen.foster> | ||||
| Component: | kudzu | Assignee: | Bill Nottingham <notting> | ||||
| Status: | CLOSED RAWHIDE | QA Contact: | Brian Brock <bbrock> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | medium | ||||||
| Version: | 7.2 | CC: | notting, rvokal | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | i386 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2003-01-30 06:02:18 UTC | Type: | --- | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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Created attachment 59444 [details]
Output of dmesg
cdrecord: No such file or directory. Cannot open SCSI driver.
this is because it seems you're not using the ide-scsi mechanism. In Linux, cd
burners need to emulate a scsi device (atapi, the cdrom protocol, is basically
scsi over a ide cable).
Change your /etc/grub/grub.conf to have the kernel line to be something like this:
kernel /vmlinuz-2.4.9-31 ro root=/dev/hda6 hdc=ide-scsi
(the root=/dev/hdaX you should leave as is in your file, on my laptop it's hda6,
it's the hdc=ide-scsi that you should add.)
Voila! Now cdrecord recognizes the burner:
# cdrecord -scanbus
Cdrecord 1.10 (i686-pc-linux-gnu) Copyright (C) 1995-2001 Jvrg Schilling
Linux sg driver version: 3.1.20
Using libscg version 'schily-0.5'
scsibus0:
0,0,0 0) 'MATSHITA' 'UJDA340 ' '1.50' Removable CD-ROM
0,1,0 1) *
0,2,0 2) *
0,3,0 3) *
0,4,0 4) *
0,5,0 5) *
0,6,0 6) *
0,7,0 7) *
# dmesg | grep hdc
Kernel command line: ro root=/dev/hda5 hdc=ide-scsi
ide_setup: hdc=ide-scsi
ide1: BM-DMA at 0x1c28-0x1c2f, BIOS settings: hdc:pio, hdd:pio
hdc: UJDA340, ATAPI CD/DVD-ROM drive
Pardon the ignorant question, but now what? Is this now NOTABUG and I need to somehow change a configuration file/parameter somewhere? Do I just add the hdc=ide-scsi to grub.conf? If so, what about when I take the burner out and put in a floppy drive? Normally, anaconda will detect the burner and automatically add the grub.conf bits. For a burner that is added later I'd think kudzu could/should this automatically.... the ide-scsi bit is harmless if the hdc device doesn't exist; only if you put in another ide device then it becomes relevant (but afaik not with disks, with tape streamers it does matter though) Thanks for the timely reply, Arjan. So... it this a bug or not? If it is, should the defect be reassigned to kudzu? The net effect to a customer is that the CD/RW does not function _as a burner_ if/when (while the laptop is powered off) the device is inserted and the system is powered up. ... and it's quite doubtful I'll insert a streaming tape drive as "hdc". It would be a nice kudzu enhancement if kudzu did this Done as part of updfstab in 0.99.91-1. |
Description of Problem: It appears the 2.4.9-31 kernel does not identify the Matsushita UDJA340 CD/RW drive I have plugged into my laptop (before boot). It's either that or cdrecord has a problem identifying the device as write-capable... I suspect the former. Dmesg output says it thinks the device is DVD. The hardware itself (and websites) say it's CD/RW. Witness: # dmesg | grep hdc hdc: UJDA340, ATAPI CD/DVD-ROM drive HP OEMs this device for the OmniBook laptop line; I do not have hardware to send in to help replicate the defect, and am hoping I/we can troubleshoot this using this bugzilla defect as a "communication vehicle" as needed/necessary. Version-Release number of selected component (if applicable): # rpm -q kernel kernel-2.4.9-31 How Reproducible: 100% Steps to Reproduce: 1. Plug in the Matshshita UDJA340 CD/RW drive with laptop powered-off 2. Boot 2.4.9-31 kernel 3. Run cdrecord -scanbus Actual Results: cdrecord cannot find a writeable device Expected Results: cdrecord *does* find a writeable device (I have faith once cdrecord finds the device, it'll burn CD images just fine) Additional Information: ------------------------------------------------- * dmesg output to be attached separately * /proc/ide files (contents) documented here ------------------------------------------------- # ls -l /dev/cdrom lrwxrwxrwx 1 root root 8 May 30 09:38 /dev/cdrom -> /dev/hdc # ls -l /proc/ide/hdc lrwxrwxrwx 1 root root 8 Jun 3 14:14 /proc/ide/hdc -> ide1/hdc # ls -l /proc/ide/ide1/hdc total 0 -r--r--r-- 1 root root 0 Jun 3 14:15 capacity -r--r--r-- 1 root root 0 Jun 3 14:15 driver -r-------- 1 root root 0 Jun 3 14:15 identify -r--r--r-- 1 root root 0 Jun 3 14:15 media -r--r--r-- 1 root root 0 Jun 3 14:15 model -rw------- 1 root root 0 Jun 3 14:15 settings # cat /proc/ide/ide1/hdc/capacity 0 # cat /proc/ide/ide1/hdc/driver ide-cdrom version 4.59 # cat /proc/ide/ide1/hdc/identify 85c0 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 312e 3530 2020 2020 554a 4441 3334 3020 2020 2020 2020 2020 2020 2020 2020 2020 2020 2020 2020 2020 2020 2020 2020 2020 0000 0000 0b00 0000 0200 0200 0002 0000 0000 0000 0000 0000 0000 0000 0000 0000 0407 0003 0078 0078 00f0 0078 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 003e 0013 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 404d 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 fffe 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 # cat /proc/ide/ide1/hdc/media cdrom # cat /proc/ide/ide1/hdc/model UJDA340 # cat /proc/ide/ide1/hdc/settings name value min max mode ---- ----- --- --- ---- breada_readahead 4 0 127 rw current_speed 34 0 69 rw dsc_overlap 0 0 1 rw file_readahead 0 0 2097151 rw ide_scsi 0 0 1 rw init_speed 34 0 69 rw io_32bit 0 0 3 rw keepsettings 0 0 1 rw max_kb_per_request 127 1 127 rw nice1 1 0 1 rw number 2 0 3 rw pio_mode write-only 0 255 w slow 0 0 1 rw unmaskirq 0 0 1 rw using_dma 0 0 1 rw # dmesg | grep hdc ide1: BM-DMA at 0x1c28-0x1c2f, BIOS settings: hdc:pio, hdd:pio hdc: UJDA340, ATAPI CD/DVD-ROM drive hdc: ATAPI 24X CD-ROM CD-R/RW drive, 2048kB Cache, DMA hdc: status timeout: status=0xff { Busy } hdc: DMA disabled hdc: drive not ready for command hdc: ATAPI reset timed-out, status=0xff hdc: status timeout: status=0xff { Busy } hdc: drive not ready for command hdc: ATAPI reset complete # cdrecord -scanbus Cdrecord 1.10 (i686-pc-linux-gnu) Copyright (C) 1995-2001 Jvrg Schilling cdrecord: No such file or directory. Cannot open SCSI driver. cdrecord: For possible targets try 'cdrecord -scanbus'. Make sure you are root. # id uid=0(root) gid=0(root) groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel)