sdb but no sdb1?

Moebius · 02-01-2004, 08:42 PM

Two of my NTFS formatted hard drives aren't showing up right in linux. sda1 is working great, and when I ls /dev as root I see sdb and sdc but no sdb1 or sdc1. How can I mount these partitions? Any ideas why the other sda1 works and these don't? They're all on the same controller.

Thanks.

finegan · 02-02-2004, 02:20 AM

the /dev/ directory is full of mount points for drives that may or may not have been recognized by the kernel.

dmesg | more

And page through until you see the scsi device scan. Is the second drive on a different card?

Paste in the chunks of dmesg that are appropriate here.

Cheers,

Finegan

Moebius · 02-14-2004, 09:26 PM

OK I've been crazy busy lately, but I finally had some time to invest in Linux agian. I did the "dmesg | more" and the only relevant stuff I could find was:

Code:

Attached scsi disk sdb at scsi5, channel 0, id 0, lun 0
SCSI device sdb: 240121728 512-byte hdwr sectors (122942 MB)
 /dev/scsi/host5/bus0/target0/lun0: p1

I have the entire readout here if you think there's any more info in there that I didn't catch.

OK, another change. I switched the HDs around so now the one that was sda is now sdb. and visa versa. The new sda is working fine now and I can access it's file and now I see sdb1 listed in /dev. I tried to mount it and this is what happened:

Code:

[root@localhost dev]# mount /dev/sdb1 /mnt/sdb1
mount: /dev/sdb1 already mounted or /mnt/sdb1 busy

I don't see how /mnt/sdb1 could possibly be busy and I don't see anything in the folder either.

Thanks bunch for the help...

michaelk · 02-15-2004, 06:16 AM

Is there an entry for sdb or sdc in the /etc/fstab file
If sdb is indeed already mounted just using the mount command with no options will display all mounted filesystems and where they are mounted.

/dev/sdb1 will be a symlink to /dev/scsi/host5....
You can use the ln command to create a /dev/sdb1