Arch Linux

Strike0

Member

From: Germany

Registered: 2011-09-05

Posts: 1,489

I/O errors from libata failing to recognise a sata device

I have a desktop running uptodate Arch only on sda. sdb can be omitted here and a sdc is connected but is configured not to be accessed during boot. The problem is that the kernel libata probing (?) tries to access it resulting in heaps of dmesg errors:

..snip.. (multiples of this)
[   43.687975] sd 3:0:0:0: [sdc] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 08 00
[   43.687980] end_request: I/O error, dev sdc, sector 0
[   43.699191] sd 3:0:0:0: [sdc]  Result: hostbyte=0x00 driverbyte=0x08
[   43.699193] sd 3:0:0:0: [sdc]  Sense Key : 0xb [current] [descriptor]
[   43.699203] sd 3:0:0:0: [sdc]  ASC=0x0 ASCQ=0x0
[   43.699205] sd 3:0:0:0: [sdc] CDB: cdb[0]=0x28: 28 00 00 00 00 00 00 00 08 00
[   43.699209] end_request: I/O error, dev sdc, sector 0

I read the wikis on the boot process, grub, etc. But the only thing I could come up with really was a /dev/sdc=noprobe /dev/sdc=none kernel option, which has no apparent effect.

How can I get the kernel to ignore that drive during boot?