SATA drive problem

Eric Shubert ejs at shubes.net
Thu Oct 1 10:28:35 MST 2009


I don't know the answer, but I believe that it's due to how udev does 
its thing. This might shed a little light: 
http://wiki.archlinux.org/index.php/Using_udev_to_map_multiple_entries_to_a_device

I'd like to find a nice little udev tutorial, if someone knows of one.

Mark Jarvis wrote:
> 
> OOPS! the first question should read:
>     1) Why did a SATA drive on Channel 2 show up as sda?
> 
> Mark Jarvis wrote:
>>
>> Up until a couple of days ago, I had 3 EIDE drives and POST reported 
>> my hard drives:
>>
>>     IDE Channel 0 Master     a 120 GB drive
>>     IDE Channel 0 Slave       a 120 GB drive
>>     IDE Channel 1 Master     a 160 GB drive
>>     IDE Channel 1 Slave        a DVD
>>     IDE Channel 2 Master     None
>>     IDE Channel 3 Master     None
>>
>> Simplifying things, channel 0 Master has my Windows Installation, 
>> Channel 0 Slave my Linux stuff, and Channel 1 Master is a backup/clone 
>> of Channel 0 Master. Ubuntu sees the three drives as sda, sdb, and sdc.
>>
>> Monday I picked up a couple of 1.0 TB  SATA drives. Starting slowly, I 
>> added one to Channel 2. I cloned the Windows drive (Channel 0 Master) 
>> to it, pulled the power plug on Channel 0 Master, and changed the boot 
>> sequence in Setup. I also changed the label on one of the partitions 
>> on the new drive. POST reports:
>>
>>     IDE Channel 0 Master     None
>>     IDE Channel 0 Slave       a 120 GB drive
>>     IDE Channel 1 Master     a 160 GB drive
>>     IDE Channel 1 Slave       a  DVD
>>     IDE Channel 2 Master     a SATA 1 TB drive
>>     IDE Channel 3 Master     None
>>
>> Windows works pretty much OK. Booting into Ubuntu 9.04, I was 
>> surprised that Gnome's File Browser shows ghosts of the old channel 0 
>> Master--complete with the labels of the old partitions, and does not 
>> show the new drive. I brought up Gnome's gparted. It saw the new drive 
>> just fine--as sda! I had expected almost anything--except sda. This is 
>> not a "real work" Linux installation and besides, /home is in a 
>> different partition, so I could just re-install and that would 
>> probably fix things, but I'd rather make what's there work correctly.
>>
>> Questions:
>>     1) Why did a SATA drive on Channel 3 show up as sda?
>>     2) How can I kick Gnome's File Browser into dropping the ghosts 
>> and showing the contents of the new drive?
>>
>> I guess that all of my admin/reference books are out of date, because 
>> I can't find anything in them that helps. The MAN pages would probably 
>> help, but I don't know where to start.
>>
>> Any help, pointers to where I can find explanations, etc. will be much 
>> appreciated.
>>
>> Thanks,
>>
>> Mark Jarvis
>>


-- 
-Eric 'shubes'



More information about the PLUG-discuss mailing list