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Problems with SATA and Mondo



Hello,
sorry for this post but I don't find any valid information to solve my problem.

I have installed a Debian Etch on an AMD64 computer.
The system has three hard disc: 1 PATA and 2 SATA.
With the 2 SATA disc I have build RAID 1 with "mdadm" and mounted LVM partitions on RAID 1 arrays.
The system runs very fine.
I want an efective system backup and I want to use Mondo Rescue. I have installed the official debian package mondo 2.20-1.1 from ftp://ftp.de.debian.org/debian/ stable

I generate the ISO image apparently well and after burn it to DVD.
I boot well from DVD until "boot:" prompt.
Here I choose "expert" and the system takes approximately 5 minutes to arrive to BusyBox Built-in shell promt. During this time the system try to access to hard discs (leds on) and in the display appears many messages like this:

ata1: SATA max UDMA/133 cmd 0x9F0 ctl 0XBF2 bmdma 0xD400 irq 5
ata2: SATA max UDMA/133 cmd 0x970 ctl 0XB72 bmdma 0xD408 irq 5
scsi0: sata_nv
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata1.00: qc timeout (cmd 0exec)
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata1.00: qc timeout (cmd 0exec)
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata1.00: qc timeout (cmd 0exec)
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
scsi1: sata_nv
ata2: SATA link down (SStatus 0 SControl 300)
ata3: SATA max UDMA/133 cmd 0x9F0 ctl 0xBE2 bmdma 0xC000 irq 11
ata4: SATA max UDMA/133 cmd 0x960 ctl 0xB62 bmdma 0xC008 irq 11
scsi2: sata_nv
ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
irq5: nobody cared (try booting with the "irqpoll" option)

When I arrive to the BusyBox Built-in shell promt and i try to execute commands like "fdisk -s /dev/sda" or like "sfdisk -d /dev/sda", the system ask "Unable to open /dev/sda/". I have the same problem with the 2 SATA disks (/dev/sda & /dev/sdb) and I can't to access to them.
I don't have any problem with PATA disc (/dev/hda).

What can I do ?
Somebody has any idea ?

I thank any information.

Thanks a lot,
Joan Carles.

--
Joan Carles
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