[SOLVED] linux wo(uld)nt mount disk in virtual pc

[RJ.]

hello everyone,


I joined this forum because I'm very new to linux and learing from a book i bought at the library.
I do it like that because i like my data to be as structured as possible.

Im using CentOS at the moment, but any linux will do.

All was going well for a while untill I got into trouble when I got to a chapte about mounting media.
the book says it should be done like this.

mount /what /where

For 2 days it didnt work , BUT now all of a sudden it does.
I have no idea what I was doing wrong :S.

I've already told my computer I hate him, any other suggestions?

I think i was working with the wrong device,

Anyway, its nice to be here, and I hope to learn a lot.

[elija]

I've already told my computer I hate him

Well that's a good start but without more information I don't think we can suggest anything.

If you post the output of

fdisk -l

that's a small L after the dash and you may need to run it as root. That will give us a list of hard disks. If you can also post the mount command you use(d) we can have a look for you.

[RJ.]

If you post the output of

fdisk -l

that's a small L after the dash and you may need to run it as root. That will give us a list of hard disks.

Thank you, that command makes everything much clearer.
The book does mention fdisk, only a few chapters further.
It just assumes the first mount will succeed.

but I dont know how to coppy the text from my virtual machine.

If you can also post the mount command you use(d) we can have a look for you.

that would be Mount /dev/sdb1 /mnt for my usb stick (works)
and Mount /dev/sda1 /media for a new virtual hard disk (doesn"t work)

gives: unable to find HFS+ superblock, need to enter filesystem (or something like that , its in dutch for me)

I tryed entering many different ones , dut it doesnt seem to work.

[CMXIV]

but I dont know how to coppy the text from my virtual machine.

If you have an X server running the the VM, (if you have a mouse cursur) then highlight and right click should work. Or....

 cd ~
sudo fdisk -l > fdisk.log

That will create a file with the output. Just open that file, and copy paste like usual.

gives: unable to find HFS+ superblock, need to enter filesystem (or something like that , its in dutch for me)

Odd that it thinks the file system is HFS+, but you can play its game.

Depending on the Distro, you can try

sudo modprobe hfsplus
sudo modprobe hfs
sudo fdisk -l

to make sure it didnt change the location.

You may want to make its own directory to mount in:

sudo mkdir /media/hd

And try mounting it again.

sudo mount /dev/sda1 /media/hd

[elija]

If sda1 is your primary hard disk (the one you put / on when you installed) it will already be mounted when you boot. You can see what file systems are mounted at boot time by looking in the fstab

cat /etc/fstab

and you can change what files are mounted by editing this file. To see what file systems are actually mounted just run

mount

.

Is the new virtual hard disk a second vdi file, assuming virtual box or whatever extension is used by your VM because you'll probably have to add it to the VM using the manager before you boot to have access to it.

[RJ.]

thanks for your answers.

If sda1 is your primary hard disk (the one you put / on when you installed) it will already be mounted when you boot

it isn't.

I already tryed fstab and it gives me the same "cant find superblock" error message.
I also used the mount command, and my new disk isnt in the list.

sudo modprobe hfsplus
sudo modprobe hfs
sudo fdisk -l

I'm not sure what this is supposed to do but when I type "sudo modprobe hfsplus" or "sudo modprobe hfs" nothing happens.

I did find something on the web.

mkfs -t ext3 /dev/sdb1

this worked on whole disks, but not on partitions.
When I use it on partitions it starts to complain about the HFS+ superblock again.

[CMXIV]

I'm not sure what [modprobe hfsplus] is supposed to do but when I type "sudo modprobe hfsplus" or "sudo modprobe hfs" nothing happens.

The modprobe command inject modules into the kernel to be able to run certain things without restarting. modprobe hfsplus would basically load any drivers the system had related to HFS+ to enable HFS/HFS+ support.

After thinking about it, I have no idea why it would say there is a problem with HFS superblock. There shouldn't be a HFS file system there at all. (its the apple FS)

Post the exact output of

fdisk -l

I think that would help all of us right now.

[RJ.]

Post the exact output of Code:fdisk -l. I think that would help all of us right now.

Okay, but how do I copy-paste from my vmware machine to my real pc?

like I said, I'm toatly new to linux. I have no idea how it works in VMWare as well. should I install geust additions?

[CMXIV]

Copying should be the same.. It should move it over. If not, open a browser in the VM? Create a text file? Memorize it? lol

[RJ.]

okay i got it.

Schijf /dev/sda: 21.5 GB, 21474836480 bytes
255 koppen, 63 sectoren/spoor, 2610 cilinders
Eenheid = cilinders van 16065 * 512 = 8225280 bytes

Sector size (logical/physical):
 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Schijf-ID: 0x0001549f

 

Apparaat Opstart   Begin       Einde     Blokken   ID  Systeem

/dev/sda1   *         1              64      512000       83    Linux       Partitie 1 eindigt niet op een cilindergrens.
/dev/sda2             64           2611    20458496     8e    Linux LVM

Schijf 

/dev/sdb: 1073 MB, 1073741824 bytes
255 koppen, 63 sectoren/spoor, 130 cilinders

Eenheid = cilinders van 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Schijf-ID: 0x3747f1ff



Apparaat Opstart   Begin       Einde     Blokken   ID  

Systeem
/dev/sdb1               1         130     1044193+   5  Uitgebreid
/dev/sdb5               1         130     1044162   83  Linux

Schijf 

/dev/mapper/vg_test-lv_root: 18.8 GB, 18832424960 bytes
255 koppen, 63 sectoren/spoor, 2289 cilinders
Eenheid = cilinders van 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Schijf-ID: 0x00000000


Schijf 
/dev/mapper/vg_test-lv_swap: 2113 MB, 2113929216 bytes
255 koppen, 63 sectoren/spoor, 257 cilinders
Eenheid = cilinders van 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Schijf-ID: 0x00000000


Schijf 

/dev/sdc: 4008 MB, 4008706048 bytes
118 koppen, 54 sectoren/spoor, 1228 cilinders
Eenheid = cilinders van 6372 * 512 = 3262464 bytes

Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Schijf-ID: 0xc3072e18



Apparaat Opstart   Begin       Einde    Blokken   ID  Systeem

/dev/sdc1  *          2        1229     3910720    b  W95 FAT32

sdc1 is my usb that used to transport the file out of my vm.
sdb5 is a partition of another virtual disk. I cant mount it because it gives:
unknown filesystem sort 'LVM2_member'.
and if I mount sdb1 it tells me i have to specify a filesystem.

any ideas?