====== Virtualbox ====== ==== SHRINKING ==== $ telinit 1 $ mount -o remount,ro /dev/sda1 /mnt $ zerofree -v /dev/sda1 OR $ sudo apt-get install zerofree $ df Filesystem ... Mounted on /dev/sda6 / $ mount -n -o remount,ro -t ext3 /dev/sda6 / $ zerofree /dev/sda6 $ shutdown -h now THEN ## decrease physical disk image size (size of image seen on host OS) does not change the size of the logical disk size $ VBoxManage.exe modifyhd c:\path\to\thedisk.vdi --compact ## before: 13,739,008 KB ## increase but not decrease the logical size of disk image (size seen by guest OS) ## $ vboxmanage clonehd "original.vmdk" "new.vdi" --format vdi $ VBoxManage.exe modifyhd c:\path\to\thedisk.vdi --resize ## if error: $ VBoxManage.exe modifyhd {UUID} --compact ## linux host $ vboxmanage modifyhd /path/to/thedisk.vdi --compact ## windows host $ VBoxManage.exe modifyhd C:\Users\USER55\VirtualBox VMs\Linux - Local only\Linux - Local only.vdi --compact $ VBoxManage.exe modifyhd C:\Users\USER55\VirtualBox VMs\Linux - Local only\Linux - Local only.vdi --resize 42000 ==== INCREASING SIZE ==== 1. clone with snapshots 2. resize clone to 30 GB $ vboxmanage modifyhd *.vdi --resize 30000 3. resize partition ## keeping the same format from previous BIOS ## Partition File System Mount Point Flags ## sdx1 ext4 / boot ## sdx2 extended ## sdx3 linux-swap ## fdisk -l /dev/sdx ## Device Boot Size Type ## /dev/sdx1 * 30.3G Linux ## /dev/sdx2 3.9G Extended ## /dev/sdx5 3.9G Linux swap / Solaris ## OR NEW Partition Format ## Disklabel type: dos ## Diskidentifier: 0x634c0b50 ## Partition File System Size Flags ## sdx1 linux-swap 4.00 GiB ## sdx2 extended 44.83 GiB ## sdx5 ext4 44.83 GiB boot ## fdisk -l /dev/sdx ## Device Boot Size Type ## /dev/sdx1 4G Linux swap / Solaris ## /dev/sdx2 44.8G Extended ## /dev/sdx5 * 44.8G Linux ## Mount old and new *.vdi to SATA controller ## Mount any Linux *.iso to IDE ## $ sudo dd if=/dev/sda1 | pv | sudo dd of=/dev/sdb1 4. reinstall grub $ dd bs=512 count=1 if=/dev/sdx 2>/dev/null | strings $ sudo mount /dev/sdx5 ~/temp $ sudo grub-install --root-directory=~/temp /dev/sdx $ sudo umount -a ## verify UUID in ~/temp/boot/grub/grub.cfg and gparted UUID ## mounting LUKS encrypted partition $ cryptsetup luksOpen /dev/sdb2 crypted_sdb2 $ mount /dev/mapper/crypted_sdb2 temp ## check size of new disk $ sudo fdisk -l ==== MOUNTING ==== ## mount the shared directory $ sudo mount -t vboxsf VirtualBox_Local ~/host ## unmount $ sudo umount ~/host ==== AUTOMOUNT ==== Device > Shared Folders > Machine Folders VirtualBox C:\... > Edit + Auto-mount + Make Permanent ## add user to group vboxsf $ groups user1 user1 : user1 cdrom floppy sudo audio dip video plugdev netdev bluetooth $ sudo usermod -a -G vboxsf user1 $ groups user1 user1 : user1 cdrom floppy sudo audio dip video plugdev netdev bluetooth vboxsf ## $ sudo nano /etc/rc.local ## ## mount --bind /media/sf_VirtualBox_WorkBL /home/user1/host ## mount -t vboxsf -o rw,uid=33,gid=33 VirtualBox_WorkBL /media/sf_VirtualBox_WorkBL $ sudo vi /etc/fstab /media/sf_VirtualBox_WorkBL /home/user1/host vboxsf bind,uid=10001,rw,umask=0000 0 0 ## optional $ sudo vi /etc/modules vboxsf ## $ sudo nano /etc/fstab ## ## ## VirtualBox_Local /home/user1/host vboxsf defaults,_netdev 0 0 ## VirtualBox_Local /home/user1/host vboxsf rw, noauto 0 1 ## $ sudo nano /etc/sudoers ## ## ALL ALL = NOPASSWD: /bin/mount /home/user1/host/ ## $ sudo nano /home/user1/.profile ## ## sudo mount /home/user1/host/ ==== USBS ==== ## download (and replace if necessary) extension pack $ sudo VBoxManage extpack install --replace Oracle_VM_VirtualBox_Extension_Pack-XXX.vbox-extpack $ sudo cp /usr/lib/virtualbox/VBoxCreateUSBNode.sh /usr/local/VBoxCreateUSBNode.sh $ sudo chmod 755 /usr/local/VBoxCreateUSBNode.sh ## find the vboxusers GID and add the rules to udev $ getent group vboxusers | awk -F: '{printf "Group %s with GID=%d\n", $1, $3}' Group vboxusers with GID=106 $ sudo nano /etc/udev/rules.d/vbox.rules SUBSYSTEM=="usb_device", ACTION=="add", RUN+="/usr/local/VBoxCreateUSBNode.sh $major $minor $attr{bDeviceClass} 106" SUBSYSTEM=="usb", ACTION=="add", ENV{DEVTYPE}=="usb_device", RUN+="/usr/local/VBoxCreateUSBNode.sh $major $minor $attr{bDeviceClass} 106" SUBSYSTEM=="usb_device", ACTION=="remove", RUN+="/usr/local/VBoxCreateUSBNode.sh --remove $major $minor" SUBSYSTEM=="usb", ACTION=="remove", ENV{DEVTYPE}=="usb_device", RUN+="/usr/local/VBoxCreateUSBNode.sh --remove $major $minor" ## reload udev $ sudo udevadm control --reload ## reboot and verify usb devices are showing up on VBox $ VBoxManage list usbhost ==== NETWORKING ==== === Exposing Ports === ## guest os: $ sudo ifconfig eth0 Link encap:Ethernet HWaddr 08:00:27:88:7e:b6 inet addr:10.0.2.15 Bcast:10.0.2.255 Mask:255.255.255.0 inet6 addr: fe80::a00:27ff:fe88:7eb6/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:23240 errors:0 dropped:0 overruns:0 frame:0 TX packets:16175 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:13540890 (12.9 MiB) TX bytes:1675587 (1.5 MiB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:5317 errors:0 dropped:0 overruns:0 frame:0 TX packets:5317 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:5997658 (5.7 MiB) TX bytes:5997658 (5.7 MiB) ## forward ports Protocol: TCP Host IP: 127.0.0.1 Host Port: 1001 ## any port Guest IP: 10.0.2.15 Guest Port: 3000 === Network Types === ^ Mode ^ VM -> Host ^ VM <- Host ^ VM <-> VM ^ VM -> Net/LAN ^ VM <- Net/LAN ^ ^ Host-Only | + | + | + | - | - | ^ Internal | - | - | + | - | - | ^ Bridged | + | + | + | + | + | ^ NAT | + | Port Forward | - | + | Port Forward | ^ NAT Network | + | Port Forward | + | + | Port Forward | - Bridged Adapter: wlp4s0: wifi enp0s31f6: ethernet $ ip addr # enp0s8: mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 # link/ether 08:00:27:7f:ab:cc brd ff:ff:ff:ff:ff:ff # inet 192.168.25.251/24 brd 192.168.25.255 scope global dynamic enp0s8 # valid_lft 81241sec preferred_lft 81241sec # inet6 fe80::a00:27ff:fe7f:abcc/64 scope link # valid_lft forever preferred_lft forever - NAT: $ ip addr # enp0s3: mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 # link/ether 08:00:27:73:33:da brd ff:ff:ff:ff:ff:ff # inet 10.0.2.15/24 brd 10.0.2.255 scope global dynamic enp0s3 # valid_lft 81930sec preferred_lft 81930sec # inet6 fe80::a00:27ff:fe73:33da/64 scope link # valid_lft forever preferred_lft forever - NAT Network: File > Preferences > Network > NAT Networks > Create NatNetwork: # enp0s3: mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 # link/ether 08:00:27:f4:36:f9 brd ff:ff:ff:ff:ff:ff # inet 10.0.2.15/24 brd 10.0.2.255 scope global dynamic enp0s3 # valid_lft 1163sec preferred_lft 1163sec # inet6 fe80::a00:27ff:fef4:36f9/64 scope link # valid_lft forever preferred_lft forever - Internal Network: - Host-only Adapter: File > Host Network Manager > Create vboxnet0: Adapter: Manual Ipv4 Address: 192.168.56.1 Ipv4 Network Mask: 255.255.255.0 DHCP Server: [x] enable server Server address: 192.168.56.100 Server Mask: 255.255.255.0 Lower Address Bound: 192.168.56.101 Upper Address Bound: 192.168.56.254 $ ip addr # enp0s8: mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 # link/ether 08:00:27:83:f8:46 brd ff:ff:ff:ff:ff:ff # inet 192.168.56.101/24 brd 192.168.56.255 scope global dynamic enp0s8 # valid_lft 1199sec preferred_lft 1199sec # inet6 fe80::a00:27ff:fe83:f846/64 scope link # valid_lft forever preferred_lft forever ==== MISC ==== ## allow VPN access from guest to host cd C:\Program Files\Oracle\VirtualBox VBoxManage modifyvm BL_002 --natdnshostresolver1 on ## Resolution VBoxManage setextradata "macSierra" VBoxInternal2/EfiHorizontalResolution 1920 VBoxManage setextradata "macSierra" VBoxInternal2/EfiVerticalResolution 1080 ## Monitor Count ## VBoxManage modifyvm "macSierra" --monitorcount 2 ## VBoxManage modifyvm "macSierra" --vrdemulticon on ## Vbox info lsmod | grep -i vbox modinfo vboxguest ## modprobe vboxdrv fails sudo apt update sudo apt install --reinstall linux-headers-$(uname -r) virtualbox-dkms dkms ## rtr3initex failed with rc=-1912 (rc=-1912) Ubuntu $ sudo rcvboxdrv setup Unloading modules: vboxnetadp vboxnetflt vboxdrv Loading modules: modprobe: FATAL: Module vboxnetadp not found in directory /lib/modules/5.7.4-zen1-1-zen modprobe: FATAL: Module vboxnetflt not found in directory /lib/modules/5.7.4-zen1-1-zen modprobe: FATAL: Module vboxdrv not found in directory /lib/modules/5.7.4-zen1-1-zen $ ls /lib/modules/ 5.10.3-zen1-1-zen $ sudo depmod 5.10.3-zen1-1-zen $ sudo pacman -S virtualbox-guest-modules-arch virtualbox-guest-utils $ sudo rcvboxdrv setup $ sudo reboot