Special device /dev/hdc does not exist

Conjurer · 01-22-2006, 06:51 PM

Hi!

Debian Etch isn't too keen on finding my CD/DVD-drive.

My fstab:

Code:

# /etc/fstab: static file system information.
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
proc            /proc           proc    defaults        0       0
/dev/sda2       /media/windows  ntfs    nls=utf8,umask=0222 0 0
/dev/sda5       /               ext3    defaults,errors=remount-ro 0       1
/dev/sda6       none            swap    sw              0       0
/dev/hdc        /media/cdrom0   udf,iso9660 ro,user,noauto  0       0

Problem is, there is no /dev/hdc file!
I found instructions elsewhere on the forum on how to create it, but that didn't work ("not a block device")

What do I do?

Hammett · 01-22-2006, 06:56 PM

It's quite strange you don't have /dev/hdc....Check if you have /dev/cdrom instead

Conjurer · 01-22-2006, 07:00 PM

Been there, done that - in fact,
"ls /dev/ | grep cd" returns ptycd and ttycd as the only devices resembling the search pattern.

By the way, here's my dmesg output:

Code:

urce
Console: colour VGA+ 80x25
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 506796k/515916k available (1540k kernel code, 8584k reserved, 756k data, 236k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay loop... 3153.92 BogoMIPS (lpj=1576960)
Security Framework v1.0.0 initialized
SELinux:  Disabled at boot.
Mount-cache hash table entries: 512
CPU: After generic identify, caps: afe9fbff 00100000 00000000 00000000 00000180 00000000 00000000
CPU: After vendor identify, caps: afe9fbff 00100000 00000000 00000000 00000180 00000000 00000000
CPU: L1 I cache: 32K, L1 D cache: 32K
CPU: L2 cache: 2048K
CPU: After all inits, caps: afe9fbff 00100000 00000000 00000040 00000180 00000000 00000000
CPU: Intel(R) Pentium(R) M processor 1.60GHz stepping 08
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
Checking for popad bug... OK.
ENABLING IO-APIC IRQs
..TIMER: vector=0x31 pin1=2 pin2=-1
checking if image is initramfs...it isn't (bad gzip magic numbers); looks like an initrd
Freeing initrd memory: 1380k freed
NET: Registered protocol family 16
EISA bus registered
PCI: PCI BIOS revision 2.10 entry at 0xfbaae, last bus=10
PCI: Using MMCONFIG
mtrr: v2.0 (20020519)
ACPI: Subsystem revision 20050309
ACPI: Interpreter enabled
ACPI: Using IOAPIC for interrupt routing
ACPI: PCI Root Bridge [PCI0] (0000:00)
PCI: Probing PCI hardware (bus 00)
Boot video device is 0000:00:02.0
PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.2
PCI: Transparent bridge - 0000:00:1e.0
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
ACPI: PCI Interrupt Link [LNKA] (IRQs 9 10 *11)
ACPI: PCI Interrupt Link [LNKB] (IRQs 5 7) *10
ACPI: PCI Interrupt Link [LNKC] (IRQs *9 10 11)
ACPI: PCI Interrupt Link [LNKD] (IRQs 5 *7 9 10 11)
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 9 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 9 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 9 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PCIE._PRT]
Linux Plug and Play Support v0.97 (c) Adam Belay
pnp: PnP ACPI init
pnp: PnP ACPI: found 11 devices
PnPBIOS: Disabled by ACPI PNP
PCI: Using ACPI for IRQ routing
PCI: If a device doesn't work, try "pci=routeirq".  If it helps, post a report
pnp: 00:01: ioport range 0x4d0-0x4d1 has been reserved
pnp: 00:01: ioport range 0x1000-0x1005 could not be reserved
pnp: 00:01: ioport range 0x1008-0x100f could not be reserved
pnp: 00:02: ioport range 0xf400-0xf4fe has been reserved
pnp: 00:02: ioport range 0x1006-0x1007 has been reserved
pnp: 00:02: ioport range 0x100a-0x1059 could not be reserved
pnp: 00:02: ioport range 0x1060-0x107f has been reserved
pnp: 00:02: ioport range 0x1080-0x10bf has been reserved
pnp: 00:02: ioport range 0x10c0-0x10df has been reserved
pnp: 00:07: ioport range 0x900-0x90f has been reserved
pnp: 00:07: ioport range 0x910-0x91f has been reserved
pnp: 00:07: ioport range 0x920-0x92f has been reserved
pnp: 00:07: ioport range 0x930-0x93f has been reserved
pnp: 00:07: ioport range 0x940-0x97f has been reserved
pnp: 00:0a: ioport range 0x7b0-0x7bb has been reserved
pnp: 00:0a: ioport range 0x7c0-0x7df has been reserved
pnp: 00:0a: ioport range 0xbb0-0xbbb has been reserved
pnp: 00:0a: ioport range 0xbc0-0xbdf has been reserved
pnp: 00:0a: ioport range 0xfb0-0xfbb has been reserved
pnp: 00:0a: ioport range 0xfc0-0xfdf has been reserved
pnp: 00:0a: ioport range 0x13b0-0x13bb has been reserved
pnp: 00:0a: ioport range 0x13c0-0x13df has been reserved
Simple Boot Flag at 0x79 set to 0x1
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
devfs: 2004-01-31 Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x0
Initializing Cryptographic API
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
PNP: PS/2 Controller [PNP0303:KBC,PNP0f13:PS2M] at 0x60,0x64 irq 1,12
serio: i8042 AUX port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
Serial: 8250/16550 driver $Revision: 1.90 $ 54 ports, IRQ sharing enabled
ACPI: PCI Interrupt 0000:00:1e.3[B] -> GSI 17 (level, low) -> IRQ 169
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
EISA: Probing bus 0 at eisa.0
Cannot allocate resource for EISA slot 1
EISA: Detected 0 cards.
NET: Registered protocol family 2
IP: routing cache hash table of 4096 buckets, 32Kbytes
TCP established hash table entries: 16384 (order: 5, 131072 bytes)
TCP bind hash table entries: 16384 (order: 4, 65536 bytes)
TCP: Hash tables configured (established 16384 bind 16384)
ACPI wakeup devices:
 LID PBTN PCI0 USB0 USB1 USB2 USB4 USB3 MODM PCIE
ACPI: (supports S0 S3 S4 S4bios S5)
input: AT Translated Set 2 keyboard on isa0060/serio0
RAMDISK: cramfs filesystem found at block 0
RAMDISK: Loading 1380KiB [1 disk] into ram disk... done.
VFS: Mounted root (cramfs filesystem) readonly.
Freeing unused kernel memory: 236k freed
Capability LSM initialized
NET: Registered protocol family 1
SCSI subsystem initialized
libata version 1.11 loaded.
ata_piix version 1.03
ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 17 (level, low) -> IRQ 169
PCI: Setting latency timer of device 0000:00:1f.2 to 64
ata1: SATA max UDMA/133 cmd 0x1F0 ctl 0x3F6 bmdma 0xBFA0 irq 14
ata1: dev 0 cfg 49:2f00 82:7c6b 83:5b08 84:4003 85:7c69 86:1a08 87:4003 88:203f
ata1: dev 0 ATA, max UDMA/100, 78140160 sectors:
ata1: dev 0 configured for UDMA/100
scsi0 : ata_piix
  Vendor: ATA       Model: TOSHIBA MK4026GA  Rev: PA10
  Type:   Direct-Access                      ANSI SCSI revision: 05
ata2: SATA max UDMA/133 cmd 0x170 ctl 0x376 bmdma 0xBFA8 irq 15
ata2: dev 0 cfg 49:0b00 82:0210 83:1000 84:0000 85:0000 86:0000 87:0000 88:0407
ata2: dev 0 ATAPI, max UDMA/33
ata2: dev 0 configured for UDMA/33
scsi1 : ata_piix
SCSI device sda: 78140160 512-byte hdwr sectors (40008 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 78140160 512-byte hdwr sectors (40008 MB)
SCSI device sda: drive cache: write back
 /dev/scsi/host0/bus0/target0/lun0: p1 p2 p3 < p5 p6 > p4
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: sda5: orphan cleanup on readonly fs
ext3_orphan_cleanup: deleting unreferenced inode 1785961
ext3_orphan_cleanup: deleting unreferenced inode 1785962
EXT3-fs: sda5: 2 orphan inodes deleted
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
Real Time Clock Driver v1.12
input: PC Speaker
Linux agpgart interface v0.101 (c) Dave Jones
agpgart: Detected an Intel 915GM Chipset.
agpgart: Detected 7932K stolen memory.
agpgart: AGP aperture is 256M @ 0xc0000000
hw_random: cannot enable RNG, aborting
usbcore: registered new driver usbfs
usbcore: registered new driver hub
USB Universal Host Controller Interface driver v2.2
ACPI: PCI Interrupt 0000:00:1d.0[A] -> GSI 16 (level, low) -> IRQ 177
PCI: Setting latency timer of device 0000:00:1d.0 to 64
uhci_hcd 0000:00:1d.0: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #1
uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 1
uhci_hcd 0000:00:1d.0: irq 177, io base 0x0000bf80
mice: PS/2 mouse device common for all mice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:00:1d.1[B] -> GSI 17 (level, low) -> IRQ 169
PCI: Setting latency timer of device 0000:00:1d.1 to 64
uhci_hcd 0000:00:1d.1: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #2
Linux Kernel Card Services
  options:  [pci] [cardbus] [pm]
uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 2
uhci_hcd 0000:00:1d.1: irq 169, io base 0x0000bf60
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:00:1d.2[C] -> GSI 18 (level, low) -> IRQ 185
PCI: Setting latency timer of device 0000:00:1d.2 to 64
uhci_hcd 0000:00:1d.2: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #3
alps.c: Enabling hardware tapping
uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 3
uhci_hcd 0000:00:1d.2: irq 185, io base 0x0000bf40
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:00:1d.3[D] -> GSI 19 (level, low) -> IRQ 193
PCI: Setting latency timer of device 0000:00:1d.3 to 64
uhci_hcd 0000:00:1d.3: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #4
input: PS/2 Mouse on isa0060/serio1
input: AlpsPS/2 ALPS GlidePoint on isa0060/serio1
ieee1394: Initialized config rom entry `ip1394'
uhci_hcd 0000:00:1d.3: new USB bus registered, assigned bus number 4
uhci_hcd 0000:00:1d.3: irq 193, io base 0x0000bf20
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:00:1d.7[A] -> GSI 16 (level, low) -> IRQ 177
PCI: Setting latency timer of device 0000:00:1d.7 to 64
ehci_hcd 0000:00:1d.7: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB2 EHCI Controller
ehci_hcd 0000:00:1d.7: debug port 1
ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 5
ehci_hcd 0000:00:1d.7: irq 177, io mem 0xffa80800
PCI: cache line size of 32 is not supported by device 0000:00:1d.7
ehci_hcd 0000:00:1d.7: USB 2.0 initialized, EHCI 1.00, driver 10 Dec 2004
hub 5-0:1.0: USB hub found
hub 5-0:1.0: 8 ports detected
ACPI: PCI Interrupt 0000:00:1e.3[B] -> GSI 17 (level, low) -> IRQ 169
PCI: Setting latency timer of device 0000:00:1e.3 to 64
MC'97 1 converters and GPIO not ready (0xff00)
ACPI: PCI Interrupt 0000:00:1e.2[A] -> GSI 16 (level, low) -> IRQ 177
PCI: Setting latency timer of device 0000:00:1e.2 to 64
codec_semaphore: semaphore is not ready [0x1][0x700300]
codec_write 1: semaphore is not ready for register 0x54
intel8x0_measure_ac97_clock: measured 49270 usecs
intel8x0: clocking to 48000
PCI: Enabling device 0000:03:01.0 (0000 -> 0002)
ACPI: PCI Interrupt 0000:03:01.0[A] -> GSI 19 (level, low) -> IRQ 193
Yenta: CardBus bridge found at 0000:03:01.0 [1028:0188]
Yenta: ISA IRQ mask 0x04b8, PCI irq 193
Socket status: 30000006
b44.c:v0.95 (Aug 3, 2004)
ACPI: PCI Interrupt 0000:03:00.0[A] -> GSI 18 (level, low) -> IRQ 185
eth0: Broadcom 4400 10/100BaseT Ethernet 00:12:3f:e0:76:ce
ohci1394: $Rev: 1250 $ Ben Collins <bcollins@debian.org>
ACPI: PCI Interrupt 0000:03:01.1[B] -> GSI 18 (level, low) -> IRQ 185
ohci1394: fw-host0: OHCI-1394 1.1 (PCI): IRQ=[185]  MMIO=[dfdfc800-dfdfcfff]  Max Packet=[2048]
usb 4-2: new low speed USB device using uhci_hcd and address 2
usbcore: registered new driver hiddev
input: USB HID v1.10 Mouse [Logitech Optical USB Mouse] on usb-0000:00:1d.3-2
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.01:USB HID core driver
Adding 626492k swap on /dev/sda6.  Priority:-1 extents:1
EXT3 FS on sda5, internal journal
ieee1394: Host added: ID:BUS[0-00:1023]  GUID[384fc000006f5c30]
eth1394: $Rev: 1247 $ Ben Collins <bcollins@debian.org>
eth1394: eth1: IEEE-1394 IPv4 over 1394 Ethernet (fw-host0)
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ide0: I/O resource 0x1F0-0x1F7 not free.
ide0: ports already in use, skipping probe
ide1: I/O resource 0x170-0x177 not free.
ide1: ports already in use, skipping probe
Probing IDE interface ide2...
Probing IDE interface ide3...
Probing IDE interface ide4...
Probing IDE interface ide5...
sbp2: $Rev: 1219 $ Ben Collins <bcollins@debian.org>
NTFS driver 2.1.22 [Flags: R/O MODULE].
NTFS volume version 3.1.
b44: eth0: Link is down.
NET: Registered protocol family 17
b44: eth0: Link is up at 100 Mbps, full duplex.
b44: eth0: Flow control is off for TX and off for RX.
cs: IO port probe 0x100-0x4ff: excluding 0x370-0x377 0x3f0-0x3f7
cs: IO port probe 0x800-0x8ff: clean.
cs: IO port probe 0xc00-0xcff: excluding 0xcf8-0xcff
cs: IO port probe 0xa00-0xaff: clean.
codec_semaphore: semaphore is not ready [0x1][0x700300]
codec_write 1: semaphore is not ready for register 0x54
codec_semaphore: semaphore is not ready [0x1][0x700300]
codec_write 1: semaphore is not ready for register 0x54
codec_semaphore: semaphore is not ready [0x1][0x700300]
codec_read 1: semaphore is not ready for register 0x54
codec_semaphore: semaphore is not ready [0x1][0x700300]
codec_read 1: semaphore is not ready for register 0x54
codec_semaphore: semaphore is not ready [0x1][0x700300]
codec_read 1: semaphore is not ready for register 0x54
codec_semaphore: semaphore is not ready [0x1][0x700300]
codec_read 1: semaphore is not ready for register 0x54
codec_semaphore: semaphore is not ready [0x1][0x700300]
codec_read 1: semaphore is not ready for register 0x54
codec_semaphore: semaphore is not ready [0x1][0x700300]
codec_read 1: semaphore is not ready for register 0x54
codec_semaphore: semaphore is not ready [0x1][0x700300]
codec_read 1: semaphore is not ready for register 0x54
codec_semaphore: semaphore is not ready [0x1][0x700300]
codec_read 1: semaphore is not ready for register 0x54
codec_semaphore: semaphore is not ready [0x1][0x700300]
codec_read 1: semaphore is not ready for register 0x54
codec_semaphore: semaphore is not ready [0x1][0x700300]
codec_read 1: semaphore is not ready for register 0x54
codec_semaphore: semaphore is not ready [0x1][0x700300]
codec_write 1: semaphore is not ready for register 0x54
codec_semaphore: semaphore is not ready [0x1][0x700300]
codec_write 1: semaphore is not ready for register 0x54
ACPI: Battery Slot [BAT0] (battery present)
ACPI: AC Adapter [AC] (on-line)
ACPI: CPU0 (power states: C1[C1] C2[C2] C3[C3] C4[C3])
ACPI: Processor [CPU0] (supports 8 throttling states)
ACPI: Lid Switch [LID]
ACPI: Power Button (CM) [PBTN]
ACPI: Sleep Button (CM) [SBTN]
ACPI: Thermal Zone [THM] (44 C)
NET: Registered protocol family 10
Disabled Privacy Extensions on device c030c060(lo)
IPv6 over IPv4 tunneling driver
[drm] Initialized drm 1.0.0 20040925
ACPI: PCI Interrupt 0000:00:02.0[A] -> GSI 16 (level, low) -> IRQ 177
[drm] Initialized i915 1.1.0 20040405 on minor 0: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller
mtrr: base(0xc0020000) is not aligned on a size(0x640000) boundary
eth0: no IPv6 routers present
codec_semaphore: semaphore is not ready [0x1][0x700300]
codec_read 1: semaphore is not ready for register 0x54
codec_semaphore: semaphore is not ready [0x1][0x700300]
codec_read 1: semaphore is not ready for register 0x54
codec_semaphore: semaphore is not ready [0x1][0x700300]
codec_read 1: semaphore is not ready for register 0x54
codec_semaphore: semaphore is not ready [0x1][0x700300]
codec_read 0: semaphore is not ready for register 0x2c
b44: eth0: Link is up at 100 Mbps, full duplex.
b44: eth0: Flow control is off for TX and off for RX.
eth0: no IPv6 routers present
NETDEV WATCHDOG: eth0: transmit timed out
b44: eth0: transmit timed out, resetting
b44: eth0: Link is down.
b44: eth0: Link is up at 100 Mbps, full duplex.
b44: eth0: Flow control is off for TX and off for RX.

EDIT: I've been trying to do a MAKEDEV -v hdc to no avail - which makes me wonder if all the correct modules have been loaded. During the installation, I was initally forced to deselect loading the ata_piix module - could that have anything to do with my problem?

Conjurer · 01-22-2006, 11:10 PM

SOLVED!

First I found out how to have my CD/DVD-drive recognized in the first place, the solution available here http://kerneltrap.org/node/3971 and here:

Quote:

Bug with ata_piix module prevent loading ide driver. You have to rebuild initrd image. Just add following to /etc/mkinitrd/modules:
ide-generic
ata_piix
sd_mod

Backup your old initrd:
cp /boot/initrd.img.2.6.8-1-686 /boot/initrd.img.2.6.8-1-686.bak

Make new initrd image:
mkinitrd -o /boot/initrd.img.2.6.8-1-686

Reboot
In case of failure boot from old image - grub way:
initrd /boot/initrd.img.2.6.8-1-686.bak

Wait for fix in ata_piix

Best regards

Pavel Tavoda

Now my drive was properly detected as revealed by a 'dmesg | grep hdc'
- but I still needed to create a device file in /dev/ to access it.

MAKEDEV wouldn't play along, so I downloaded the kernel documentation and found the so-called major and minor numbers in the devices.txt, as these numbers are required by mknod.
Then I just had to type as root: 'mknod hdc b 22 0' and voilá! A quick mount, and it's working!