Reputation
1,957
Top tag
Next privilege 2,000 Rep.
Edit questions and answers
Badges
5 24 44
Newest
 Nice Answer
Impact
~487k people reached

Aug
18
awarded  Nice Answer
Jul
2
revised How to transfer my SSH keys to another machine?
not the best solution, added notes about that
Jun
22
awarded  Notable Question
May
2
awarded  Popular Question
Apr
19
comment USB Hardware Raid 1 useless with vendor lock-in?
There is no much to do in hardware controller for RAID 0 and RAID 1. Hardware controller was good for high RAID types (RAID 5, RAID 6) to offload XOR computations from CPU. I think software controller is ok for RAID 1, and it also need no special hard drives.
Apr
19
comment Chrome pdf viewer left/right arrow key does not work
Fixed in Chrome 42 (april 2015) - bug code.google.com/p/chromium/issues/detail?id=455902 cr codereview.chromium.org/959443003 commit chromium.googlesource.com/chromium/src/+/…
Apr
19
accepted Chrome - change page navigation keys in pdf viewer
Apr
19
answered Chrome - change page navigation keys in pdf viewer
Mar
26
comment Linux kernel - can't access sda16 & sda17
Newer kernels of Linux allow to access sda16, sda17 and more by using additional major id for block device. Tested on 3.19 from ubuntu Vivid with udev/systemd; documentation was not updated kernel.org/doc/Documentation/devices.txt "the limit on partitions is 15." and I don't know when this was patched.
Mar
23
comment Chrome pdf viewer left/right arrow key does not work
zbycz, Can you upload the correct pdf.dll to some online internet site?
Mar
23
comment Chrome pdf viewer left/right arrow key does not work
It was implemented in the builtin pdf viewer of chrome (pdfium) at 40 and earlier. Page Up and Page Down works for scrolling, but they don't align start of page with top of the screen. With arrow keys I can work with pdf like with book - single key press gives me whole new page (very comfortable for 100+ page pdf presentations); and PgUp/PgDown are like rolling the (vertical) scroll of papyrus with several keypresses to align every new page.
Mar
14
comment How to see a list of available filesystems that I can use for the mkfs command?
Ok, my answer was to the title of the question.
Mar
14
comment Docker containers have their own kernel or not?
"It is the Ubuntu user land processes," - not only processes, but also libraries.
Mar
14
comment Docker containers have their own kernel or not?
JeremiahBarrar, Got it, thank you for explanation. Is running virtualization software from inside of Docker container documented and is it supported by Docker? What kind of virtualization will work from Docker (software qemu, qemu+kvm, xen,...)?
Mar
14
comment Docker containers have their own kernel or not?
What is package? Docker container has no kernel inside it; it just installed and started on the kernel which is used on the host. So: one Docker = one server = one kernel, just as shown in picture. No way to use two kernels with single Docker engine; all containers inside this engine will use same kernel. I think correct answer is "No, Docker containers can't use different kernels within single instance of Docker Engine"
Mar
14
answered How to see a list of available filesystems that I can use for the mkfs command?
Mar
14
comment How to see a list of available filesystems that I can use for the mkfs command?
It will list filesystems supported by kernel, no FUSE fs (?); and no information about fs formatting tools. ardabro may grep for files named like mkfs in /usr/bin and /usr/sbin.
Mar
14
comment Docker containers have their own kernel or not?
Any source for "Packages may use different kernels" ??? Docker itself can't use several kernels, there is always only single host kernel. Only when combined with hypervisor (virtualization) we can start several hosts each with own kernel version and run one Docker per virtual host; but for any host there will be only one kernel for host and for its Docked containers)
Mar
14
comment Between xz, gzip, and bzip2, which compression algorithim is the most efficient?
Student, what was options of rar? Why not try lrzip by kolivas, it should work good for virtual disk images.
Mar
14
comment Difference between pixz and xz with -T option
What kind of difference did you check? Compressed file size or compression time? I think, pixz was started before xz implemented parallel variant. PS: try lrzip by kolivas, it can find duplicated parts of file and compress better.