Mounting USB Device Problem!

JM11 · 02-23-2007, 02:29 PM

Hi, i jus installed slackware 11.0 and i was able to mount my usb drive using "mount /dev/sda /mnt/usb" but after recompiling my kernel this no longer works.

But one thing that is bothering me is that there is only /dev/sda on my system. I thought there should be /dev/sda1 and sda2 etc.. present?

So after recompiling my kernel i cant seem to mount my usb for some reason. It keeps saying "no special device /dev/sda" from what i can recall.

Can anyone help me!

thelastknowngod · 02-23-2007, 03:07 PM

did you use the 2.6.20 kernel when you compiled it? i heard the 2.6.20 kernel only using the sdX form of device labeling. essentially exchanging /dev/hdX for /dev/sdX.

Quote:

Note that the 2.6.20 kernel is used with exclusive libata subsystem that changes the mount setup : all SATA and PATA devices are now called "sdX" instead of "hdX" even for PATA (optical devices are called "srX"). Several Zenwalk system scripts and tools have been modified to comply with this kernel.

here is the source from the Zenwalk 4.4 release notes...

http://www.zenwalk.org/modules/news/...php?storyid=41

JM11 · 02-23-2007, 03:36 PM

Nope. I am using the 2.6.17.13 kernel version that was on the slackware 11 installation cd.

thelastknowngod · 02-23-2007, 03:44 PM

did you compile it or just install the one that was on the disc? did you install the kernel modules for that kernel?

JM11 · 02-23-2007, 03:50 PM

I recompiled it after installing the modules from the /extra directory on cd 2.
But wat i dont understand is that previously wen using fedora core there wer many sdX devices but on slackware there only seems to be the one sda.

rkrishna · 02-24-2007, 03:11 AM

do a dmesg and identify your device.

Quote:

i jus installed slackware 11.0 and i was able to mount my usb drive using "mount /dev/sda /mnt/usb"

i doubt how u were able to mount with this command?? no file system and r u sure this worked well?

have u compiled in the necessary modules for usb?
here is my how to
http://rkrishna.tp.googlepages.com/slackerbasics#usb

after editng fstab you only need to do "mount /mnt/usb " or mount /mnt/memory whatever yu wrote in fstab

duryodhan · 02-24-2007, 05:33 AM

Quote:

Originally Posted by thelastknowngod

did you use the 2.6.20 kernel when you compiled it? i heard the 2.6.20 kernel only using the sdX form of device labeling. essentially exchanging /dev/hdX for /dev/sdX.

I am on 2.6.20 and it uses hda , hdb for IDE devices and sdX for SCSI devices. Essentially no change from previous kernels.

hitest · 02-24-2007, 10:30 AM

I had issues mounting my portable usb card reader in slackware 11 (2.6.18)
gnashley gave me some commands that allowed me to mount my device. As root at a terminal prompt run

#rescan-scsi-bus

then

#fdisk -l

then

#blkid

Then you should see all available scsi devices and be able to mount them:-)

duryodhan · 02-24-2007, 10:45 AM

On running blkid

Quote:

/dev/sda6: TYPE="ntfs"

does anyone know how I can convert the type to ntfs-3g .. so that when I do

Quote:

mount /dev/sda6 /win_d

it mounts the correct driver?

Right now , I use the -t option in mount.

JM11 · 02-25-2007, 11:18 AM

Hey, rkrishna i checked out ur how to (good stuff), and i did:
#rescan-scsi-bus -l

This showed my usb device as sda, not sda1 or anything else. I added the line /dev/sda to fstab with the rest of the options and it works fine.
Only thing that bugs me is that the 2.4 kernel has /dev/sda as a superblock and has sda1 - sda13 or so on my system. Is this something to do with the kernel or jus my system?

Cheerz.

JM11 · 03-03-2007, 11:46 AM

Not to worry, i managed to get it working

Just had to change some options in the /etc/fstab file.

Thanks for the help!

mardanian · 03-03-2007, 12:16 PM

BTW no need to compile kernel which ship with slackware, all you have to do read the README.initrd and follow it. It will hardly takes five minutes to install the kernel.

Thanks.

hitest · 03-03-2007, 12:48 PM

Quote:

Originally Posted by JM11

Not to worry, i managed to get it working

Just had to change some options in the /etc/fstab file.

Thanks for the help!

Cool, glad you got it working:-)
Could you please post your fstab? This will help other users who encounter your problem

JM11 · 03-03-2007, 03:19 PM

Here's my fstab file

Quote:

/dev/hda8 swap swap defaults 0 0
/dev/hda4 / ext2 defaults 1 1
/dev/hda1 /boot ext2 defaults 1 2
/dev/hda9 /home ext2 defaults 1 2
/dev/cdrom /mnt/cdrom auto noauto,owner,ro 0 0
/dev/fd0 /mnt/floppy auto noauto,owner 0 0
/dev/sda1 /mnt/usb vfat auto,user,rw 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
proc /proc proc defaults 0 0

Hope this helps.

thekid · 03-13-2007, 05:33 PM

I thought that SCSI emulation for USB was replaced with normal USB on the 2.6.20 kernel. Am I mistaken? Do I still need the SCSI sub-systems compiled into the kernel?