Comments for Mostly Ramblings

Comment on Virtualization Stuff by otheus

otheus — Wed, 01 Jul 2009 19:27:34 +0000

A heartfelt *thankyou* for the tips on grub usage. I tried the device (hd0) /dev/loop thing (per lamontg), but this always got “no such partition”.

Comment on New books! by silverseason

silverseason — Sat, 02 May 2009 09:02:12 +0000

I just posted a comment on The Box http://silverseason.wordpress.com/.

Comment on Tar through ssh by oletange

oletange — Fri, 13 Mar 2009 06:15:11 +0000

Learn:

rsync -Havessh /path/to/stuff/ bob@wendy.no.where.com:/destination/

Comment on Sort unique shell trickery by oletange

oletange — Fri, 13 Mar 2009 05:58:23 +0000

Did you know ’sort -u’?

Comment on for loop (bash) with spaces in filenames by oletange

oletange — Fri, 13 Mar 2009 05:42:50 +0000

You may want to have a look at parallel:

cat goodones.txt | parallel echo

cat goodones.txt | parallel echo {}

https://savannah.nongnu.org/projects/parallel

Comment on My fixed gear by jonmccune

jonmccune — Mon, 19 Jan 2009 19:15:25 +0000

Hi vicp,

I have tipped over numerous times such as you describe, and I agree that it’s an inherent risk of using clipless pedals. I’m sorry to hear about your injuries. For me, the gain in power and control outweighs the risk of the occasional tip-over. Also, clipless pedals are much safer than using toe-clips and fully tightening them.

That said, this article is about a fixed-gear bicycle. It’s been nearly 10 years since I began commuting with one, and it is far, far more dangerous than an ordinary bicycle. However, I am an experienced cyclist, and I choose the risk to heighten my awareness and improve my bike-handling skills. It also stops my commute from being boring.

Comment on My fixed gear by vicp

vicp — Mon, 19 Jan 2009 18:38:14 +0000

Warning!!!
Clipless pedals are very dangerous.
I’ve been riding bicycles continuously since I was 5. Have even commuted to work year-round in suburb north of NYC, Had been using Shimno clipless pedals for about 10 years and had several occasions when I couldn’t release from the pedal and dumped over. The last time, at age 58, caused my right hip to fracture. I needed 2 surgeries and 6 months of rehab. After the accident I found out about two other cyclists who suffered hip fractures because they couldn’t release from their pedals.
Needless to say I took them off my Trek and will never use them again.
The Pain was not worth the gain.

Comment on Symbian OS V9.1+ C++ Cryptography APIs available! by kirk81

kirk81 — Wed, 08 Oct 2008 13:41:16 +0000

I haven’t yet taken the time to dig into the specs and figure out exactly what the purpose of ASN1_HASH_SHA1 is meant to be. For now, I’ve included it in my code as a literal…

I’ve done the same..but what does it mean? Did u find it out?

thanks

Manuel

Comment on Libraries with Ocaml by yoric

yoric — Fri, 18 Apr 2008 16:08:20 +0000

You could also write a one-line configuration file called _tags containing
<*>: use_graphics
and then write
$ ocamlbuild grtest1.byte

OCamlBuild rocks seriously.

Comment on Virtualization Stuff by lamontg

lamontg — Tue, 04 Mar 2008 19:16:36 +0000

with respect to:

“Now we want to unmount the loopback device and install the grub bootloader on the MBR of our virtual disk (grub is supposed to be able to handle giving it /dev/loop0 when the disk.img is mounted via the loopback system, but it gives me “error 22: no such partition”).”

check out the instructions at:

http://wiki.xensource.com/xenwiki/InstallGuestImage

the way to do it is:

losetup /dev/loop0 disk.img
losetup -o32256 /dev/loop1 disk.img
ln -s /dev/loop0 /dev/loop
grub
grub> device (hd0) /dev/loop
grub> root (hd0,0)
grub> setup (hd0)
grub> quit
rm /dev/loop
losetup -d /dev/loop0
losetup -d /dev/loop1

grub expects something like /dev/hda (where the MBR+partition table is) and /dev/hda1 (where the filesystem partition is). this sets it up so that /dev/loop is where the MBR+partition table are, and /dev/loop1 is where the filesystem is. grub is then happy.