# virtualbox image

Published articles for virtualbox image.

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## GSoC 2018 weeks 3-4 - understanding BTRFS internals

DevFeed: [GSoC 2018 weeks 3-4 - understanding BTRFS internals](<https://devfeed.tech/articles/gsoc-2018-weeks-3-4-understanding-btrfs-internals-32801.md>)

Original publisher: [Read original article](<https://reactos.org/blogs/gsoc-2018-weeks-3-4-understanding-btrfs-internals/>)

Published: 2018-06-14T00:00:00Z

Content type: article

Language: en

Sources: [Front Page on ReactOS Website](<https://devfeed.tech/sources/front-page-on-reactos-website.md>)

Topics: [btrfs](<https://devfeed.tech/topics/btrfs.md>), [Python](<https://devfeed.tech/topics/python.md>), [virtualbox image](<https://devfeed.tech/topics/virtualbox-image.md>)

Tags: [btrfs](<https://devfeed.tech/tags/btrfs.md>), [free](<https://devfeed.tech/tags/free.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [os](<https://devfeed.tech/tags/os.md>), [python](<https://devfeed.tech/tags/python.md>), [react](<https://devfeed.tech/tags/react.md>), [reactos](<https://devfeed.tech/tags/reactos.md>), [virtualbox-image](<https://devfeed.tech/tags/virtualbox-image.md>), [win32](<https://devfeed.tech/tags/win32.md>), [winapi](<https://devfeed.tech/tags/winapi.md>)

### AI overview

A GSoC progress post describing work to understand Btrfs on-disk structures. The author wrote a Python parser for basic Btrfs structures, item types, B-tree searches, and logical-to-physical address translation, then used it to read freeldr.sys from a filesystem blob.

### Source excerpt

Hi all! This two weeks I was diving into btrfs structures and on-disk layout. Writing an ASM program from scratch is not that simple so I decided to convert a VirtualBox image with BTRFS filesystem in it to raw file and write a python script to parse and show internal filesystem structures. It was also useful for understanding how files are stored in FS, because information on btrfs.wiki.kernel.org was not enough for me to understand some corner cases.

## Ubuntu Server 15.04 Virtualbox Image

DevFeed: [Ubuntu Server 15.04 Virtualbox Image](<https://devfeed.tech/articles/ubuntu-server-15-04-virtualbox-image-21698.md>)

Original publisher: [Read original article](<https://nativeguru.wordpress.com/2015/05/09/ubuntu-server-15-04-virtualbox-image/>)

Author: Ramon

Published: 2015-05-09T19:43:06Z

Content type: release

Language: en

Sources: [Ramon Fried](<https://devfeed.tech/sources/ramon-fried.md>)

Topics: [Ubuntu](<https://devfeed.tech/topics/ubuntu.md>), [Oracle-VM-VirtualBox](<https://devfeed.tech/topics/vm-box.md>), [OpenSSH](<https://devfeed.tech/topics/openssh.md>), [Server](<https://devfeed.tech/topics/server.md>)

Tags: [keyboard](<https://devfeed.tech/tags/keyboard.md>), [linux](<https://devfeed.tech/tags/linux.md>), [openssh](<https://devfeed.tech/tags/openssh.md>), [password](<https://devfeed.tech/tags/password.md>), [security](<https://devfeed.tech/tags/security.md>), [time](<https://devfeed.tech/tags/time.md>), [ubuntu](<https://devfeed.tech/tags/ubuntu.md>), [ubuntu-15-04](<https://devfeed.tech/tags/ubuntu-15-04.md>), [ubuntu-15-04-virtualbox-image](<https://devfeed.tech/tags/ubuntu-15-04-virtualbox-image.md>), [ubuntu-server](<https://devfeed.tech/tags/ubuntu-server.md>), [ubuntu-server-virtual-box-image](<https://devfeed.tech/tags/ubuntu-server-virtual-box-image.md>), [usb](<https://devfeed.tech/tags/usb.md>), [virtualbox](<https://devfeed.tech/tags/virtualbox.md>), [virtualbox-image](<https://devfeed.tech/tags/virtualbox-image.md>)

### AI overview

The article provides a pre-installed 64-bit Ubuntu Server 15.04 VirtualBox image for server-side setups. It states that packages were updated on May 9, 2015, OpenSSH was installed, and the image can be downloaded with listed credentials and configuration notes.

### Source excerpt

I created pre-installed Ubuntu Server 15.04 64bit Virtualbox image to be used for various server side setups. It can be freely downloaded and used by you. all packages were updated to the current date (9/5/15). openssh server was installed and set to default port File can be downloaded from here: Link: UbuntuServer1504VboxImage.tar.bz2 MD5: eff64b08b8e2fc4ceb668a4e1a62b82d The [...]