New 64-bit Fedora Will Not Mount Similar 32-bit Filesystem

Sun Nov 4 19:20:29 UTC 2012

On 4 Nov 2012 at 14:02, Alan Feuerbacher wrote:

Date sent:      	Sun, 04 Nov 2012 14:02:55 -0500
From:           	Alan Feuerbacher <alanf00 at comcast.net>
To:             	users at lists.fedoraproject.org
Subject:        	Re: New 64-bit Fedora Will Not Mount Similar 
32-bit Filesystem

> On 11/4/2012 1:33 PM, Alchemist wrote:
> 
> > Try with lsblk -f
> >
> 
> >     I did a pvscan and it came up with this:
> >
> >     #########
> >       PV /dev/sdb3   VG vg_alan-fedora   lvm2 [2.73 TiB / 0    free]
> >       Total: 1 [2.73 TiB] in use: 1 [2.73 TiB] / in no VG: 0 [0   ]
> >     #########
> >
> >     Why is /dev/sdc not displayed? Even when fdisk shows it as an
> >     LVM volume?
> 
> Here's the output:
> 
> ###############
> [root at alan-fedora lvmdump.dump1]# lsblk -f
> NAME                               FSTYPE      LABEL            UUID
> MOUNTPOINT sda 
> 
> sdb 
> 
> ├─sdb1 
> 
> ├─sdb2                             ext4
> f3ef71bf-f58d-4312-abcb-7dd514aab661   /boot
> └─sdb3                             LVM2_member
> z00IIw-k1Ie-y8Uy-9ovN-pqZz-k2GR-kDItHD
>    ├─vg_alan--fedora-lv_swap (dm-0) swap
> b4c7d2e0-cafd-4527-8e69-b9c883e579e9   [SWAP]
>    ├─vg_alan--fedora-lv_root (dm-1) ext4        _Fedora-17-x86_6
> 423b85c7-4a96-4699-8ff0-4a0b5c643d26   /
>    └─vg_alan--fedora-lv_home (dm-2) ext4
> 05aa4b62-5c63-4ee3-aa7c-f742c7d971cb   /home
> sdc 
> 
> ├─sdc1                             ext4
> 1878d5d2-9135-470d-bc57-634fe7f979e8   /mnt/fedora32
> └─sdc2 
> 
> sr0
> ###############
> 
> As you can see, lsblk displays information about /dev/sdc, and shows
> the mount that I did earlier ("mount /dev/sdc1 /mnt/fedora32"), and
> shows sdc1 as an ext4 filesystem, but shows nothing about sdc2 other
> than that it exists. Any suggestions?
> 
> Alan

Since the sdc2 is an lvm partition, you don't mount it via the mount 
command. You need to mount the lvm partitions within it.

What does cat /proc/partitions show. 

On my system I get this.
major minor  #blocks  name

   8        0  488386584 sda
   8        1     204800 sda1
   8        2   32696288 sda2
   8        3  455482912 sda3
 253        0   27123712 dm-0
 253        1    5570560 dm-1

sda is the disk
sda1 is the boot partition
sda2 is the lvm partition
sda3 os another partition
dm-0 is the root partition of the LVM
dm-1 is the swap partition

sfdisk -l 
will report on the disk 

Another command that shows info.

blkid

/dev/sda1: UUID="4cf2b9e4-4c23-4060-be46-811b4a62c4a5" 
SEC_TYPE="ext2" TYPE="ext3" 
/dev/sda2: UUID="Vcje2C-yBVj-BucG-979I-aVYF-sKMt-rvEi4X" 
TYPE="LVM2_member" 
/dev/dm-0: UUID="77b3e1ee-3302-4a1d-83c1-7fd84399bf2f" 
TYPE="ext4" 
/dev/dm-1: TYPE="swap" 
UUID="55dba510-1d21-4c4d-b80c-878d709c3192" 
/dev/mapper/vg_setzco-lv_swap: TYPE="swap" 
UUID="55dba510-1d21-4c4d-b80c-878d709c3192" 
/dev/mapper/vg_setzco-lv_root: 
UUID="77b3e1ee-3302-4a1d-83c1-7fd84399bf2f" TYPE="ext4" 
/dev/sda3: UUID="5e369c30-713b-4d7a-9bce-10ddaefb41f5" 
SEC_TYPE="ext2" TYPE="ext3" 
/dev/root: UUID="77b3e1ee-3302-4a1d-83c1-7fd84399bf2f" 
TYPE="ext4" 

You might be able to mount the partition by doing something like.
mount /dev/dm-0 /mnt/mountpoint

There may be an issue if both lvm partitions have the same 
names as you current systems. I don't think it will allow that, you 
have to jump thru some hops to make the names different. On my 
newer systems I don't use LVM.

> 
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+----------------------------------------------------------+
  Michael D. Setzer II -  Computer Science Instructor      
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