Virtualbox shared folder mount from fstab fails; works once bootup is complete

I ran afoul of this problem too. I mount /var/www using VBox shared folders functionality, so this was quite annoying.

The solution I found was to force the vboxsf module to be loaded early, before the mounting of file systems. Just add vboxsf on a line of its own in /etc/modules.

Another solution is to set noauto in /etc/fstab and manually mount drives in /etc/rc.local, but this wasn’t such a good solution for me because by that time Apache has already started and been unable to find anything in /var/www.

https://askubuntu.com/questions/365346/virtualbox-shared-folder-mount-from-fstab-fails-works-once-bootup-is-complete

Virtualbox shared folder mount from fstab fails; works once bootup is complete was last modified: January 16th, 2020 by Jovan Stosic

5 Best Command Line Archive Tools for Linux

tar is the standard UNIX/Linux archiving application tool. In its early stage it used to be a Tape Archiving Program which gradually is developed into General Purpose archiving package which is capable of handling archive files of every kind. tar accepts a lot of archiving filter with options.

tar options

  1. -A : Append tar files to existing archives.
  2. -c : Create a new archive file.
  3. -d : Compare archive with Specified filesystem.
  4. -j : bzip the archive
  5. -r : append files to existing archives.
  6. -t : list contents of existing archives.
  7. -u : Update archive
  8. -x : Extract file from existing archive.
  9. -z : gzip the archive
  10. –delete : Delete files from existing archive.
tar Examples

Create a tar archive file.

# tar -zcvf name_of_tar.tar.gz /path/to/folder

Decompress an tar archive file.

# tar -zxvf Name_of_tar_file.tar.gz

Source: 5 Best Command Line Archive Tools for Linux – Part 1

5 Best Command Line Archive Tools for Linux was last modified: January 16th, 2020 by Jovan Stosic

64 bit – Does VirtualBox run 64-bit guests on a 32-bit host? – Ask Ubuntu

VirtualBox supports 64-bit guest operating systems, even on 32-bit host operating systems, provided that the following conditions are met:

  • You need a 64-bit processor with hardware virtualization support (see Section 10.3, “Hardware vs. software virtualization”).
  • You must enable hardware virtualization for the particular VM for which you want 64-bit support; software virtualization is not supported for 64-bit VMs.
  • If you want to use 64-bit guest support on a 32-bit host operating system, you must also select a 64-bit operating system for the particular VM. Since supporting 64 bits on 32-bit hosts incurs additional overhead, VirtualBox only enables this support upon explicit request.
  • On 64-bit hosts (which typically come with hardware virtualization support), 64-bit guest operating systems are always supported regardless of settings, so you can simply install a 64-bit operating system in the guest.
  • Warning

    On any host, you should enable the I/O APIC for virtual machines that you intend to use in 64-bit mode. This is especially true for 64-bit Windows VMs. See Section 3.3.2, “”Advanced” tab”. In addition, for 64-bit Windows guests, you should make sure that the VM uses the Intel networking device, since there is no 64-bit driver support for the AMD PCNet card; see Section 6.1, “Virtual networking hardware”.

Source: 64 bit – Does VirtualBox run 64-bit guests on a 32-bit host? – Ask Ubuntu

64 bit – Does VirtualBox run 64-bit guests on a 32-bit host? – Ask Ubuntu was last modified: January 15th, 2020 by Jovan Stosic

The New Grove Dictionary of Music and Musicians

The New Grove Dictionary of Music and Musicians is an encyclopedic dictionary of music and musicians. Along with the German-language Die Musik in Geschichte und Gegenwart, it is one of the largest reference works on western music. Originally published under the title A Dictionary of Music and Musicians, and later as Grove’s Dictionary of Music and Musicians, it has gone through several editions since the 19th century and is widely used. In recent years it has been made available as an electronic resource called Grove Music Online, which is now an important part of Oxford Music Online.

https://en.wikipedia.org/wiki/The_New_Grove_Dictionary_of_Music_and_Musicians

The New Grove Dictionary of Music and Musicians was last modified: January 14th, 2020 by Jovan Stosic

Symphony No. 2 (Mahler)

Symphony No. 2 by Gustav Mahler, known as the Resurrection Symphony, was written between 1888 and 1894, and first performed in 1895. This symphony was one of Mahler’s most popular and successful works during his lifetime. It was his first major work that established his lifelong view of the beauty of afterlife and resurrection. In this large work, the composer further developed the creativity of “sound of the distance” and creating a “world of its own”, aspects already seen in his First Symphony. The work has a duration of eighty to ninety minutes and is conventionally labelled as being in the key of C minor; the New Grove Dictionary of Music and Musicians labels the work’s tonality as C minor–E major. It was voted the fifth-greatest symphony of all time in a survey of conductors carried out by the BBC Music Magazine.

https://en.wikipedia.org/wiki/Symphony_No._2_(Mahler)

Symphony No. 2 (Mahler) was last modified: January 14th, 2020 by Jovan Stosic

FDA Advise-ERR: Mefloquine-Not the same as Malarone! | Institute For Safe Medication Practices

Problem: The US Food and Drug Administration (FDA) and ISMP have received reports that describe errors associated with the wrong frequency of administration with mefloquine as well as wrong drug errors in which mefloquine was dispensed instead of the intended MALARONE (atovaquone/proguanil). Both mefloquine (previously marketed as LARIAM*) and Malarone are FDA approved for use in the treatment and prophylaxis of malaria, but they each have different dosing regimens (Table 1).

Mefloquine dosing

Source: FDA Advise-ERR: Mefloquine-Not the same as Malarone! | Institute For Safe Medication Practices

FDA Advise-ERR: Mefloquine-Not the same as Malarone! | Institute For Safe Medication Practices was last modified: January 14th, 2020 by Jovan Stosic