Archive for May, 2006

JavaScript Slideshow

2006-May-23 at 5:04 pm · Filed under JavaScript

This javascript slideshow is my choice from many others.

http://www.barelyfitz.com/projects/slideshow/index.php 

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VHCS2 newest patch applied

2006-May-22 at 2:38 pm · Filed under PHP, VHCS

after reviewed the post http://vhcs.net/new/modules/newbb/viewtopic.php?topic_id=5310&forum=21

I applied the newest patch immedieatly to the 2 production server and 1 dev server at 1and1.

also, I'd changed the permission of /var/www/vhcs2/gui/admin/change_password.php, as I'm not likely to change my password everyday, I'd changed it to 000 so no one can execute it. 

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Filesystems (ext3, reiser, xfs, jfs) comparison on Debian

2006-May-19 at 7:49 pm · Filed under Linux

link to the original article:

http://www.debian-administration.org/start/368

from the original article:

OVERALL CONCLUSION
While recognizing the relative merits of each filesystem, only one filesystem can be install for each partition/disk. Based on all testing done for this benchmark essay, XFS appears to be the most appropriate filesystem to install on a file server for home or small-business needs :

  • It uses the maximum capacity of your server hard disk(s)
  • It is the quickest FS to create, mount and unmount
  • It is the quickest FS for operations on large files (>500MB)
  • This FS gets a good second place for operations on a large number of small to moderate-size files and directories
  • It constitutes a good CPU vs time compromise for large directory listing or file search
  • It is not the least CPU demanding FS but its use of system ressources is quite acceptable for older generation hardware

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install SLAX to a USB pen drive

2006-May-19 at 2:59 pm · Filed under Linux, SLAX

Finally I decide to install SLAX onto my 2G USB pen drive. I record my steps for further reference.

  1. Desktop computer
    1. Model: HP Pavilion a1117cl
    2. OS: Fecora Core 5
  2. USB Pen Drive Model: Sandisk
  3. SLAX version: 5.1.4

Here's the preprations:

  • download SLAX ISO image from http://slax.linux-live.org
  • mount the ISO image:
    • mount -o loop -t iso9660 /home/hkai/software/slax-5.1.4.iso /mnt/cdrom
  • insert USB pen drive
    • My Fedora automatically mounted it to /media/disk
    • run this command if need mount manually: mount /dev/sde1 /mdeia/disk
  • copy the files from CD to USB
    • cp -ra /mnt/cdrom/* /media/disk/
    • you may notice there's some error messages like this: cp: failed to preserve ownership for `/media/disk/autorun.inf': Operation not permitted
    • that's caused linux want to set the file ownerships on a fat32 file system, should be no problem
  • now, move some files on USB drive
    • cd /mdeia/disk
    • mv boot/*.gz .
    • mv boot/spash.* .
    • mv boot/vmlinuz .
  • we need to edit some files to allow slax boot from the pen drive
    • cd /media/disk
    • mv isolinux.cfg syslinux.cfg
    • vi syslinux.cfg
    • change syslinux.cfg like the following, basically, remove some boot/ reference

display splash.cfg
default slax
prompt 1
timeout 40
F1 splash.txt
F2 splash.cfg

label slax
kernel vmlinuz
append vga=769 max_loop=255 initrd=initrd.gz init=linuxrc load_ramdisk=1 prompt_ramdisk=0 ramdisk_size=4444 root=/dev/ram0 rw

label linux
kernel boot/vmlinuz
append vga=769 max_loop=255 initrd=initrd.gz init=linuxrc load_ramdisk=1 prompt_ramdisk=0 ramdisk_size=4444 root=/dev/ram0 rw

label memtest
kernel boot/memtest

  • now, we need to edit spash.cfg
    • vi spash.cfg
    • remove the boot/ as well
  • all set for the editing, umount the USB drive
    • umount /media/disk
  • we need a tool to make the USB drive bootable: syslinux
    • install syslinux if required
      • on Fedora: yum install syslinux
    • syslinux -s /dev/sde1
  • now you should able to boot SLAX from the USB drive

However, my PC don't support boot from USB directly, so I have to burn a slax CD, and use it to boot from USB drive.

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