New iMedia Linux Wrap v2.7.4

New iMedia Linux Wrap v2.7.4
 Thu, 1970-01-01 00:00
admin
Posts: 85
 Joined: 2006-07-18

Version 2.7.4 of iMedia WRAP Linux has been released.
Major changes:

  • NEW Updated ndiswrapper to 1.23 version
  • NEW Added madwifi atheros, orinoco and hermes drivers.
  • NEW Acess Point configurations are now possible with the above mentioned drivers.
  • Supports generic i586 CPUs (Geode, VIA, etc).
  • Kernel 2.4.33 with O(1) scheduler, low latency and other patches
  • SSH, FTP, DNS, TELNET, DHCP, TFTP servers
  • NDISWRAPPER which offers the ability to use windows drivers for network cards. This makes this distribution support a big range of wireless, minipci, usb network cards.
  • IPTABLES firewall
  • Samba / NFS support
  • Quick boot times (10 seconds from power on to login prompt)
  • Journaling filesystem based on ext3 with small log and better data preserving for compact flash disks.
  • Embedded logging – logs are kept in memory in a circular buffer. Optionaly logs can be saved to remote linux machines thru syslog daemon
  • Small size from 6 Mb (includes basic networking/routing/commands) to 64 Mb

Changes and download locations on product webpage


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 Tue, 2007-01-02 17:45 circular memory buffers for logging
mike4all
Posts: 4
 Joined: 2007-01-02

Hi,

i am new with iMedia-WRAP. I installed it on a WRAP board. Now i try to understand some things.
Most curious i am about the circular logging. I have seen, that the files cron, messages and secure
are special files of type character. They have major 241
(which is reserved for local or experimental use, which i have found in Documentation/devices.txt of
the kernel sources) and the minor of 64 which indicates a buffer size of 64 KB.

Am i right until here?

I tried to create a file on my workstation "mknod test.log c 241 64" The file was created. The usage failed.

"ls -l /" > /var/tmp/test.log
-su: test.log: No such device or address

If i do this in the WRAP box, i can redirect any output to the file.

How did you realized this circular logging?

Kind regards,
Mike


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 Tue, 2007-01-02 17:53 circular memory buffers for logging
mike4all
Posts: 4
 Joined: 2007-01-02

Hi,

ok i found it by myself. I took a look into /proc/devices and unter 241 was emlog.
A short search in google pointed me to http://www.circlemud.org/~jelson/software/emlog/
The rest was easy to understand.

But anyway: Cool!

Best regards,
Mike


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 Sat, 2007-01-06 10:56 Circular logs
pando
Posts: 36
 Joined: 2006-12-04

As you probably found on emlog page creating a circular log is pretty easy:
mknod /var/log/mylog c 241 64
The most important thing here is the last argument that define how many K will store you log file before cycling data. We have compiled and it should be on base distribution nbcat utility that helps you see log file.

PS. Using cat on a emlog file acts just like tail -f, this is pretty useful for many users.


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