[Gllug] Disappearing drive device (PATA)

[Adrian McMenamin]

I have a box with the /boot partition on /dev/hda1 - the BIOS sees it
and the grub menu, which lives there, comes up at boot time.

But then the boot sequence reports /dev/hda1 cannot be found and that I
should use fdisk on it. Fdisk cannot find it, indeed there appear to be
no device nodes for any /dev/hda* devices at all.

The box will boot as more or less anything important lives on /dev/sda*
(ie a SATA disk)


This problem has just appeared following an update from Ubuntu 7.10 to
8.04

Any ideas as to what might be wrong? Nothing obvious appears in the
Ubuntu forums.

This might help...

dmesg | grep ata
[    0.000000]  BIOS-e820: 000000005fff3000 - 0000000060000000 (ACPI
data)
[   49.579630] Memory: 1546280k/1572800k available (2157k kernel code,
25324k reserved, 998k data, 364k init, 655296k highmem)
[   49.579778]       .data : 0xc031b5a4 - 0xc0414dc4   ( 998 kB)
[   54.462463] libata version 3.00 loaded.
[   73.181212] sata_via 0000:00:0f.0: version 2.3
[   73.181287] sata_via 0000:00:0f.0: routed to hard irq line 11
[   73.187108] scsi2 : sata_via
[   73.195664] scsi3 : sata_via
[   73.195746] ata1: SATA max UDMA/133 cmd 0xb000 ctl 0xb400 bmdma
0xc000 irq 11
[   73.195749] ata2: SATA max UDMA/133 cmd 0xb800 ctl 0xbc00 bmdma
0xc008 irq 11
[   73.399267] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[   73.564471] ata1.00: ATA-6: WDC WD2000JD-22HBB0, 08.02D08, max
UDMA/133
[   73.564478] ata1.00: 390721968 sectors, multi 1: LBA48 
[   73.580454] ata1.00: configured for UDMA/133
[   73.782597] ata2: SATA link down 1.5 Gbps (SStatus 0 SControl 300)
[   76.302655] pata_via 0000:00:0f.1: version 0.3.3
[   76.304447] scsi4 : pata_via
[   76.305406] scsi5 : pata_via
[   76.306881] ata3: PATA max UDMA/133 cmd 0x1f0 ctl 0x3f6 bmdma 0xc800
irq 14
[   76.306884] ata4: PATA max UDMA/133 cmd 0x170 ctl 0x376 bmdma 0xc808
irq 15
[   76.478510] ata3.00: ATA-7: HDS728080PLAT20, PF2OA21B, max UDMA/133
[   76.478518] ata3.00: 160836480 sectors, multi 1: LBA48 
[   76.502285] ata3.00: configured for UDMA/133
[   76.821633] ata4.00: ATAPI: HL-DT-STDVD-ROM GDR8163B, 0L23, max
UDMA/33
[   76.993219] ata4.00: configured for UDMA/33
[   78.057855] EXT3-fs: mounted filesystem with ordered data mode.

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