Mount: you must specify the filesystem type

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I had mapped 500GB Lun from storage to my rhel 6.5 host and created the partition using below steps: [ email@removed ~]# pvcreate /dev/sdb Physical volume "/dev/sdb" successfully created [ email@removed ~]# vgcreate myvg /dev/sdb Volume group "myvg" successfully created [ email@removed ~]# lvcreate -L 200G -n mylv myvg Logical volume "mylv" created [ email@removed ~]# mkfs.ext4 /dev/myvg/mylv/ [ email@removed ~]# mkdir -pv /myfs mkdir: created directory `/myfs' [ email@removed ~]# mount /dev/myvg/mylv /myfs df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_albctssgdcdb2-lv_root 50G 2.1G 45G 5% / tmpfs 16G 0 16G 0% /dev/shm /dev/sda1 485M 39M 421M 9% /boot /dev/mapper/vg_albctssgdcdb2-lv_home 485G 6.9G 454G 2% /home /dev/mapper/myvg-mylv 197G 188M 187G 1% /myfs but after restart when I am trying to mount created filesystem /myfs I am getting below error [ email@removed ~]# mount /dev/myvg/mylv /myfs mount: you must specify the filesystem type Please help with...

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I'm trying to install Arch onto my laptop, to dual boot alongside Ubuntu, which I'll hopefully eventually replace with Arch as my main OS. So I'm installing it with an SD card, which was partitioned as EXT3 in GParted, and used 'dd' to write the disk image (Downloaded off the website) onto the SD card. This was done on my netbook which is running some eeepc specific linux distro if that's important.

Now I tried to boot by the SD card on my laptop, and after selecting the type of Arch linux I wanted, I got a command prompt, with an error message saying:
mount: you must specify the filesystem type
ERROR; Failed to mount '/dev/disk/by-label/ARCH_201403'
Falling back to interactive prompt
You can try to fix the problem manually, log out when you are finished
sh: can't access tty; job control turned off

And then I'm left in rootfs
I've never used Arch before, but I've had experience in other distros to not be too scared of the command...

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Help recovering GRUB boot "you must specify filesystem type"?

location: ubuntuforums.com - date: April 17, 2010
Help please! I'm very new to linux and ubuntu. I just got an Acer netbook Aspire One. I put the Ubuntu remix on it successfully, and was using it for several days without problems. Now all of a sudden when I turn on my computer I get a grub error message with a command prompt. I've tried following the direction to restore grub but I'm getting stuck right away on the command to mount my ubuntu partition. After I type "sudo mount /dev/sda4 /mnt", I keep getting the error message "mount: you must specify the filesystem type." I can't figure out what to do next?

KERNEL PANIC Mount: you must specify filesystem type

location: ubuntuforums.com - date: August 19, 2009
Hi I am running Intrepid This is after I changed usplash in /etc/splashy folder (to get a Mac look) Somehow the system got corrupt. Now i cant get through. I booted from a Live-Cd Here is...

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Apr 11, 2011

We received some client data on an external USB drive. We plugged it into our CentOS 5.5 machine and I ran an fdisk -l which gave me this new info: Quote: Disk /dev/sdf: 160.0 GB, 160041885696 bytes 255 heads, 63 sectors/track, 19457 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes

[Code]....

OpenSUSE Install :: Unknown Filesystem Type 'reiserfs' Could Not Mount Root Filesystem - Exiting To /bin/sh General :: Detect Filesystem Type (can't Mount Filesystem Image .img) Ubuntu :: Can't Mount The Installer CD: $sudo Mount - Unknown Filesystem Type 'iso9660' Debian Installation :: Mount -unknown Filesystem Type 'xfs' General :: Mount: Unknown Filesystem Type 'ntfs' Red Hat / Fedora :: Preparing A DVD+RW Disc For Writing - Mount: You Must Specify A Filesystem Type Debian :: Can't Mount Ntfs: Unknown Filesystem Type 'LVM2_member' Ubuntu Installation :: Recovering GRUB Boot - Mount: You Must Specify The Filesystem Type Red Hat / Fedora :: Boot...
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cubie@Cubian:~$ sudo nandinstall/install.sh
This will completely destory your data on /dev/nand, Are you sure to continue? yes
spawn /home/cubie/nandinstall/sunxi-tools/nand-part /dev/nand linux 4000000 swap 8000000
check partition table copy 0: OK
check partition table copy 1: OK
check partition table copy 2: OK
check partition table copy 3: OK
partition 0: name = bootloader, partition start = 2048, partition size = 32768
partition 1: name = linux, partition start = 34816, partition size = 4000000
partition 2: name = swap, partition start = 4034816, partition size = 8000000
3 partitions
check partition table copy 0: OK
check partition table copy 1: OK
check partition table copy 2: OK
check partition table copy 3: OK

ready to write new partition tables:
partition 0: name = bootloader, partition start = 2048, partition size = 32768
partition 1: name = linux, partition start = ...

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mount: you must specify the filesystem type

Description:

After reboot the server it is unable to boot and giving the message unable to mount /opt , so skipped and step after that it booted normally. But once enter into the server even auto mount also not updated. Mount partition information updated in fstab entries but no use.while try to mount it is giving the following error,
root@vms:~# mount /dev/sdb /opt
mount: you must specify the filesystem type

Solution:

– In this case never try to format the drive with any file system that will cause of data loss in the attach drive. Many people afraid after seen filesystem error and immediatly try #mkfs ext4 /dev/sdb ofcourse this will also option to mount the drive,

# lshw -C disk ( verify how many disks present in the server mount/unmount)

#mkfs.ext4 /dev/sdb
#mount /dev/sdb /opt

This will mount drive on /opt drive but mkfs will make the file system and format the complete...

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