Lucid Install - /dev devices missing?

[doktorOblivion]

I installed Lucid last night after having much trouble with Karmic. In any case, it appears to be much better than 9.10 on my system. One major problem I do see though is that not all devices show up under /dev. This means I cannot mount them! Any ideas? Here is the parted information along with my /dev ls.

(parted) print partition
Model: ATA WDC WD2500KS-00M (scsi)
Disk /dev/sda: 250GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number Start End Size Type File system Flags
1 32.3kB 52.4GB 52.4GB primary ntfs boot
2 160GB 250GB 90.0GB primary ext3


~$ ls /dev/sd*
/dev/sda /dev/sdb /dev/sdb1 /dev/sdb2 /dev/sdb5 /dev/sdc /dev/sdd /dev/sde /dev/sdf /dev/sdf1

[doktorOblivion]

So my next question is, is this because the system is using ext4 and not ext3? That is, are /proc/modules missing to support ext3 devices and that is the reason they are not recognized?

:~$ sudo fdisk -l /dev/sda

Platte /dev/sda: 250.1 GByte, 250059350016 Byte
255 Köpfe, 63 Sektoren/Spur, 30401 Zylinder
Einheiten = Zylinder von 16065 × 512 = 8225280 Bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x52a76317

Gerät boot. Anfang Ende Blöcke Id System
/dev/sda1 * 1 6374 51199123+ 7 HPFS/NTFS
/dev/sda2 19458 30401 87907680 83 Linux

:~$ sudo mount -t ext3 /dev/sda2 d1
mount: Gerätedatei /dev/sda2 existiert nicht

[Jose Catre-Vandis]

Its not clear (to me) from what you have posted as to which devices you cannot access/mount? Are these additional internal HDDs, external HDDs, USB sticks, other?

There is an issue with thunar not automounting external USB HDDs and sticks. Is this the problem?

[doktorOblivion]

The problem is, there are ext3 devices as shown by fsck and parted that do NOT show up under the /dev dir.

/dev/sda1 * 1 6374 51199123+ 7 HPFS/NTFS
/dev/sda2 19458 30401 87907680 83 Linux

When I try to mount one, it says it does not exist.

:~$ sudo mount -t ext3 /dev/sda2 d1
mount: device /dev/sda2 does not exist

When I ls the /dev dir for sd*, it only shows those top level devices I guess it thinks are important.

:~$ ls /dev/sd*
/dev/sda /dev/sdb /dev/sdc /dev/sdc1 /dev/sdc2 /dev/sdc5 /dev/sdd /dev/sde

I had thought that XUbuntu and its f/s subsystem would continue to report sub-devices for EVERY HDD, but apparently not. Is this due to LVM or some other f/s upgrade? Any way to get those devices gen'd? They are there otherwise fsck and parted would not see them.

Thanks.

[Jose Catre-Vandis]

Your fdisk shows that on your sda HDD you have two partitions an NTFS ( @ 50GB) and a Linux (@ 85GB) with a gap between the two (Why?).

What other partitions were you expecting to find on your HDD?

Also if you are in /dev/sda2 your linux partition (e.g. running Linux/Ubuntu) you won't be able to mount it with that command as a) it is already mounted and b) you will have trouble mounting it on itself.

I have a mix of ntfs, ext4, and ext3 partition on my PC they all show, and it is odd that sda1 and sda2 are not showing with ls /dev/sd*

Also do you mean ext3 partitions and not ext3 devices?

[doktorOblivion]

So, here is the results of those missing file system. They are they, just under /dev/mapper, instead of as HD SCSI drives in /dev. Go figure. Today, for some strange reason they just appeared all mounted as names using the UUID under /media. E.g.


/dev/mapper/nvidia_ibdadbgd1 on /media/1814E10C14E0EE26 type fuseblk (rw,nosuid,nodev,allow_other,blksize=4096,default_ permissions)
/dev/mapper/nvidia_ibdadbgd2 on /media/22aebe25-ce73-4281-b6a8-cd38720540a9 type ext3 (rw,nosuid,nodev,uhelper=udisks)
/dev/mapper/nvidia_edibebag1 on /media/Anwendungen type fuseblk (rw,nosuid,nodev,allow_other,blksize=4096,default_ permissions)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)

To me its still kind of a mystery, I would like to understand why this was implemented in such a obfuscatory way, but at least its working now.:confused: