[CentOS] Minicom capture file

2008-10-12 Thread Dean Maluski
I'm trying to capture text data coming in on serial port to put into a
plot on a web page.
Running minicom 2.3 on a Fedora 9 box the capture file is updated
immediately. Running minicom 2.1, stock on a Centos 5.x box the capture
file doesn't update until you exit capture mode.
Is there any way to have it update immediately or is there an
alternative application to write incoming data to a text file. Likely
many ways to accomplish this but my brain is out of ideas today.
Dean

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[CentOS] Failed boot drive

2008-05-22 Thread Dean Maluski
Unclear on how to recover from failed boot drive?
SDA has failed but I'm still able to boot.
I need to replace primary boot drive. Upon initial build I created a
RAID 1 mirror of /boot dir/partition.
How do I get system to boot off second or third drive so that I can
replace /sda?
I've successfully replaced /sdb & sdc raid 5 drives in the past but have
always struggled to get primary boot drive replaced.
Read HOWTO's in the past but it's been an unsuccessful pain and
eventually just did a full rebuild.


I just read another HOWTO and as confused as I was several months ago,
nothing on getting system to boot from alternate drive.

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Re: [CentOS] CentOS 5.1 php-curl

2008-02-09 Thread Dean Maluski
On Sat, 2008-02-09 at 11:46 -0500, Dean Maluski wrote:
> I have two boxes nearly identical.
> I must have a package installed on one and not on the other.
> I cannot run a php-curl statement on one, and the other I can.
> Doing a google I find that I simply need to install php-common.
> According to box that does not work php-common is installed.
> What did I miss?
Problem solved
I had my proxy set for outside world, My queries were being routed
through proxy.

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[CentOS] CentOS 5.1 php-curl

2008-02-09 Thread Dean Maluski
I have two boxes nearly identical.
I must have a package installed on one and not on the other.
I cannot run a php-curl statement on one, and the other I can.
Doing a google I find that I simply need to install php-common.
According to box that does not work php-common is installed.
What did I miss?

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[CentOS] Samba GUI interface

2008-02-06 Thread Dean Maluski
CentOS 5.1
I was just trying to add users and shares to Samba from GUI interface.
I've already added users from command line.
Regardless, when I go to select users the existing users is blank.
When I add a user if it already exists I get a complaint that user
exists. If I add a new user from GUI it does not get added to the blank
list.
OK I just added a user from gui, applied it [HIT OK]
went back and tried to add user again but when hitting [OK] complained
that user exists. Seems things are working except listing existing users
in interface.
I can live with this but I'm about to upgrade a server at work and
ultimately I was hoping my Windows Sys Admin could manage to
administrate Samba. I don't think this will be possible without a GUI.

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Re: [CentOS] RAID Hot Spare

2008-02-01 Thread Dean Maluski
On Fri, 2008-02-01 at 16:11 -0800, nate wrote:
> Dean Maluski wrote:
> > I've googled this question without a great deal of information.
> 
> > Of couse will be creating RAID0 swap but leaving that out of the
> > question for obvious reasons.
> 
> You really should use anything but RAID 0 for swap. If you need
> to swap and that device is dead then your system is hosed.
> 
> At one point I read that you can get RAID0-"like" performance
> by having multiple swap partitions on multiple devices and mounting
> them with the same priority(mount option pri=(some number)). It
> (was/is) supposed to stripe the swap partitions. Not sure if that
> ever worked, though I have configured systems over the years to
> use matching swap priorities, never really looked to see if it
> was doing what I expected though.
> 
> Yeah, from swapon(2):
> [..]
> If two or more areas have the same priority, and it is the
> high-est priority available, pages are allocated on a
> round-robin basis between them.
> 
> nate
OK, not really an answer to my hot spare question.
What I read sounds similar to what you state that if you create multiple
swap partions the system will create a raid0 of it.
So what is the recommendation? create 1 swap partition on one drive?

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[CentOS] RAID Hot Spare

2008-02-01 Thread Dean Maluski
I've googled this question without a great deal of information.
Monday I'm rebuilding a Linux server at work. Instead of purchasing 3
drives for this system I purchased 4 with intent to create a hot spare.
Here is my usual setup which I'll do again but with a hot spare for each
partion.
Create /dev/md0 mount point /boot RAID1 3 drives with 1 hot spare
Create two more raid setups
/dev/md1 mount point /  RAID5 3 drives with 1 hot spare
/dev/md2 mount point /home  RAID5 3 drives with 1 hot spare
Now do I create partions of equal size for each set then if I remember
correctly when creation the RAID there is a check box for hot spare. Do
I just marry the 3 equal partions, click the check box and assume the
system will find the partition of equal size and use it when needed?
Makes no sense to me.
Of couse will be creating RAID0 swap but leaving that out of the
question for obvious reasons.


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