On Sun, Sep 22, 2002 at 04:44:04PM +0530, S Gantayet wrote:
>
> Tried the capturing screen command using setterm as per
> LOST #142 (see below)
>
[snipped]
>
> Am getting the message:
> couldn't read /dev/vcsa0, and cannot iocntl dump.There is
> no vcsa0 in /dev. created a directory vcsa0 in /dev. it
> did not list in ls -a, though it was created as when I
> tried to make another vcsa0, it said cannot create direc-
> tory as file exists!
>
> Read the man pages for vcs - virtual console memory, but
> could not sort out the problem.
[snipped]
> Can someone please help explain.
>
---end quoted text---
o LOST #142 uses setterm for screen capture. As a matter of
fact it merely captures the output of your vcsN devices,
(with --dump option). The man page of setterm states:
<snip>
In this case, if the terminal type is "con", or "linux"
the string that invokes the specified capabilities on
the PC Minix virtual console driver is output.
<snip>
o For every "linux" console (/dev/ttyN), there is a corres-
ponding "virtual console" (/dev/vcsN). If you have some-
thing on tty1, you can log into tty6, and view the screen
of tty1 by merely typing "cat /dev/vcs1" from tty6.
o setterm --dump just does exactly that.
o There seems to be some problem in your distro installation
since entries in /dev are made during installation. What
is your distro ?
o Entries in /dev are made with "mknod" and not "mkdir". The
entries here may be changed in different distros, but as a
rule, vcsN devices are owned by root.tty. These are char-
acter devices, having a major number of 7 and minor of 0
through 24 for devices vcs0 through vcs24. Permission 666.
On an ls -al, they look like:
crw-rw-rw- 1 root tty 7, 0 May 6 1996 /dev/vcs0
crw-rw-rw- 1 root tty 7, 1 May 6 1996 /dev/vcs1
....
o Similarly there is vcsaN (1 through 24), similar to above
with same ownership and major 7, minor 128 through 152.
o To create such devices, you need to use the mknod command,
or, use the /dev/MAKEDEV script. Try "man 8 MAKEDEV".
o Please come back on personal mail if you have any further
difficulty creating these /dev entries.
HTH
Bish
--
:
####[ GNU/Linux One Stanza Tip (LOST) ]#######################
Sub : Accessing ext2 through Windows LOST #186
Download a program called "explore2fs" from:
http://uranus.it.swin.edu.au/~jn/linux/explore2fs.htm
and install it in win9x partition ... It gives explorer like
interface. WARNING! Write to ext2 is still alpha .. use with
caution ... ext2 partition read is 100% safe.
####<[EMAIL PROTECTED]>################################
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