Kernel sees scsi information, but cannot fdisk the drives

bojo

I have a spare machine here at work that I am attempting to install Gentoo on. I have installed Gentoo on machines with IDE drives, but this is my first attempt at a machine with SCSI.

dmesg reports the fact that it sees my controller card on bootup, as well as the cdrom and harddrive attatched to it. This is verified when I cat /proc/scsi/scsi

The problem is the fact that I cannot fdisk any /dev/sd* drives (no such devices exist), and when I follow all the paths within /dev/scsi/ there's no device to attatch to at the end.

I think I am overlooking something, and appreciate any help I can find.

pjp · Administrator Joined: 16 Apr 2002 Posts: 20067

Does the SCSI CD drive work?
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bojo · Posted: Fri Jun 28, 2002 9:12 pm Post subject:

Yes, the cd drive boots the disk fine, but there is no cdrom device to mount (which creates a problem further on into the installation obviously).

Is there a method to make scsi devices register in /dev that I am missing?

pjp · Administrator Joined: 16 Apr 2002 Posts: 20067

Is this at all helpful?
Note: I found MAKEDEV under /usr/sbin/MAKEDEV
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bojo · Posted: Fri Jun 28, 2002 9:41 pm Post subject:

Unfortunately, MAKEDEV doesn't appear to exist on the initial 16mb boot system. Earlier I thought it would be in /dev should it exist, but the command 'which MAKEDEV' returns nothing. I also verified that it does not live in any of the bin or sbin directories (just to be sure that which was actually behaving correctly).

mknod does exist however, and I may have to figure out how to create my scsi hard disk and cdrom fs devices in order to use them during the install itself. I think if I can get that far, and build a new kernel, things might go more smoothly.

Thank you for the help so far.

bojo · Posted: Fri Jun 28, 2002 9:49 pm Post subject:

Through a little google research, I was able to build /dev/sda with the following:

mknod /dev/sda b 8 0

From there fdisk recognized the complete drive, and I am now able to partition it, and mount it. I will try the same for the scsi cdrom.

Thanks for pointing me in the right direction.

pjp · Administrator Joined: 16 Apr 2002 Posts: 20067

No problem, glad it was helpful. You'd think the install would do this though. Anyone think this might be a 'bug'?
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Guest · Posted: Fri Jun 28, 2002 10:24 pm Post subject:

I had this very same problem tonight. The same command worked for me, thanks!!! Now, when I reboot will I still have that node???

bojo · Posted: Fri Jun 28, 2002 10:42 pm Post subject:

rommel · Posted: Sat Jun 29, 2002 5:29 am Post subject:

did you try to modprobe the driver for your host adapter adn load the sd_mod before trying fdisk?