How to mount ext3, ext4 partition sitting on "Fixed-Size VDI" VirtualBox HardDisk ?
To be more specific, I ma interested in case when VM is not running.
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I've found very helpful answer on:
The tip is to use
offset option of ext4 mount (to be more specific, in back scenes it uses
offset as option for loopback device
offDatainfo from VDI image
Here is my way of automating it:
VDIfile=VirtData.vdi mountingpoint=/mnt/VDI offData=$( VBoxManage internalcommands dumphdinfo "$VDIfile" |grep offData | sed 's:.*offData=\([0-9]*\).*:\1:' ) offset=$(( $offData + 32256 )) mount -t ext4 -o rw,noatime,noexec,loop,offset="$offset" "$VDIfile" "$mountingpoint"
/etc/fstab you might like to add: (
123456789 is counted previously offset)
/path/VirtData.vdi /mnt/VDI ext4 rw,noatime,noexec,loop,offset=123456789,user,noauto
rw can be changed to
ro or you might not need
noexec - taylor them to your needs
Btw. if your path contains spaces there is a trick of changing
\040 (source: https://wiki.archlinux.org/index.php/Fstab )
virtualbox-fuse installs the
vdfuse command which can be used to mount either dynamic or fixed VDI files.
apt-get install virtualbox-fuse mkdir /mnt/point mkdir /mnt/p1 vdfuse -f file.vdi /mnt/point mount /mnt/point/Partition1 /mnt/p1