acogitosis

I have /tmp and /home on different partitions. When trying to move a file from /tmp to /home using File.renameTo() — it fails. Turns out one has to copy and delete the file himself, renameTo works only inside single partition.

It turns out that Internet Explorer caches AJAX requests (how clever). If you’re using $.ajax(), you can pass cache: false option to it, but if - like me - you’re using $.get() and $.post(), just use

$.ajaxSetup({cache: false});

somewhere at the start of your script.

Mostly for my future reference. -threads 8 should be changed to the number of CPU cores (my i7 has 4 with HT, thus I set it to 8).

ffmpeg -i input.avi -acodec libfaac -ab 48k -vcodec libx264 -vpre fast -vb 500k -threads 8 -f flv output.flv

Mostly note to my self for future reference.

What they don’t tell You in the tar backup tutorial is that it’s not enough to edit /etc/fstab (and their instructions for grub are for grub-legacy).

Because after restoring you probably have new partition UUIDs, you must:

• boot livecd
• mount your root fs
• mount -B /dev /rootfs/dev, etc. (with proc and sys at least) to be able to chroot from livecd to your root fs
• chroot /rootfs
• edit /etc/fstab and change UUIDs there (new ones you can get using blkid
• do sudo dpkg-reconfigure -plow grub-pc to automatically upgrade grub config files, just let it install to the drive(s) it was on
• do update-initramfs -u so UUID stored inside initramfs get updated, too

Then you should be able to boot it.

Install VirtualBox Guest Additions in Windows’ safe-mode so system file protection doesn’t interfere with the installation, it’s that simple and fixed all my VirtualBox performance problems.