installed new hard drive - now can't find it

[Dana Holland]

This is a RAID-5, and this would be the 5th drive.

# cat fstab
LABEL=/                 /                       ext3    defaults        1 1
LABEL=/boot             /boot                   ext3    defaults        1 2
none                    /dev/pts                devpts  gid=5,mode=620  0 0
LABEL=/home             /home                   ext3    defaults        1 2
LABEL=/opt              /opt                    ext3    defaults        1 2
none                    /proc                   proc    defaults        0 0
none                    /dev/shm                tmpfs   defaults        0 0
LABEL=/tmp              /tmp                    ext3    defaults        1 2
LABEL=/usr              /usr                    ext3    defaults        1 2
LABEL=/usr/local        /usr/local              ext3    defaults        1 2
LABEL=/var              /var                    ext3    defaults        1 2
/dev/sda11              /bb                      ext3    defaults        1 2
/dev/sda10              swap                    swap    defaults        0 0
/dev/cdrom              /mnt/cdrom              iso9660 
noauto,owner,kudzu,ro 0 0
/dev/fd0                /mnt/floppy             auto 
noauto,owner,kudzu 0 0


Mark Knecht wrote:

> Dana Holland wrote:
> 
>> When I do a fdisk /dev/sda I get:
>>
>> # fdisk /dev/sda
>>
>> The number of cylinders for this disk is set to 6637.
>> There is nothing wrong with that, but this is larger than 1024,
>> and could in certain setups cause problems with:
>> 1) software that runs at boot time (e.g., old versions of LILO)
>> 2) booting and partitioning software from other OSs
>>    (e.g., DOS FDISK, OS/2 FDISK)
>>
>> But if I issue the command on anything above that:
>>
>> ]# fdisk /dev/sdb
>>
>> Unable to open /dev/sdb
> 
> 
> First, I am not a SCSI user under Linux, so take this with a grain of 
> salt...
> 
> I would have thought that the 4th SCSI drive would have been
> 
> fdisk /dev/sdd
> 
> a=1
> b=2
> c=3
> d=4
> etc...
> 
> However, it's possible that if you manually set up SCSI IDs that one of 
> two things happened:
> 
> 1) You have the new drive on SCSI ID=2 and an older drive also on ID=2. 
> In this case neither drive will work. Check to make sure they are not 
> assigned to the same value.
> 
> 2) If you assigned the drive manually to a high value, like ID=7, then 
> the drive might be at /dev/sdg. Adjust the /sdX part as needed.
> 
> 3) If the drive is automagically assigned its ID then you jsut have to 
> fine it.
> 
> NOTE: You cannout mount the drive until fdisk can find it, you partition 
> it  and probably you want to label it to keep things straight in the 
> future.
> 
>>
>> My confusion is that I already have partitions (devices?) that start 
>> with sda...
>>
>>
>> # fdisk -l
>>
>> Disk /dev/sda: 255 heads, 63 sectors, 6637 cylinders
>> Units = cylinders of 16065 * 512 bytes
>>
>>    Device Boot    Start       End    Blocks   Id  System
>> /dev/sda1   *         1        13    104391   83  Linux
> 
> 
> Are these not partitions on the same drive?
> 
> Possibly you have a more complicated fstab file than I am used to. Can 
> you post that back for us to look at?
> 
> I'm just guessing here....
> 
> Sorry,
> Mark
> 
> 
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