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VirtualBox: access Windows-host shared folders from Ubuntu-guest

Dùng Vbox hay phải mount shared folder giữa win + ubuntu. Ubuntu guest no X-Server (no Window-UI) hay gặp vđ.
Key 1: Cài VBox guest addtion từ command line.
Key 2: Tên folder share trên windows vd: C:\Users\Desktop\SadHill khi chạy lệnh mount trong ubuntu sẽ là:
sudo mount -t vboxsf SadHill /mnt/Blondie
Thư mục /mnt/Blondie đc tạo từ trước.
vboxsf là kiểu phân vùng như ntfs, fat32 ... ko rõ sao ko là vbox fs ?
Key 3: Có thể cài vbox -guest addition từ apt hay yum bên CentOS. Tuy nhiên nếu cài = ISO trên ubuntu (debian-like) chú ý /media/cdrom đổi thành /dev/sr0

WebRefs:
http://www.giannistsakiris.com/2008/04/09/virtualbox-access-windows-host-shared-folders-from-ubuntu-guest/
Làm thao để biết đã cài Vbox guest:
http://www.binarytides.com/check-virtualbox-guest-additions-installed-linux-guest/
Thực tế thì ko chuẩn lắm. Cài = apt xong ko đc vẫn phải dùng Guest.ISO
Mount cdrom linux guest :
http://superuser.com/questions/270916/mounting-a-cdrom-in-ubuntu
mount /dev/sr0 /mnt/cdrom

You need to use the cd-rom's block device to mount. It's most commonly sr0 on modern distributions.

But if your CD is already mounted to media automatically, you don't need to do this. You just need to point the program to the contents of the CD in /media.

Simple, đã từng làm nhưng cũng khiến m messing mấy ngày cho việc mount. Thậm chí cả tuần xong bỏ đấy.

Update: Nếu bạn nào chưa biết ssh host windows vào máy ảo linux (guest) thì search port forưarding Virtualbox ssh.
Thường forward cổng 3022 vô 22 của máy ảo.
sau đó ssh -p 3022 blondie@127.0.0.1
hoặc ssh -p 3022 blondie@192.168.56.1
56.1 là ip máy ảo, bạn có thể xem từ màn console của vbox.
M có 1 bài về port forwarding nhưng để đâu đó ko tìm thấy.


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