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Unable to rexec to gentoo client from other linux client.
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sreelakshmi.madisetty
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PostPosted: Wed Nov 28, 2012 9:44 am    Post subject: Unable to rexec to gentoo client from other linux client. Reply with quote

Hi,

I have installed gentoo. I am able to do rexec to gentoo succesfully but unable to do rexec to gentoo client from other linux client.

Please help me in resolving this.
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Veldrin
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PostPosted: Wed Nov 28, 2012 5:13 pm    Post subject: Reply with quote

welcome to gentoo.

a few questions:
is there a particular reason for using rexec? why not use ssh?
which way does not work? from gentoo? or to gentoo?
what did you install/emerge?


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sreelakshmi.madisetty
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PostPosted: Thu Nov 29, 2012 8:36 am    Post subject: Reply with quote

Hi Veldrin

Thanks for you reply.

I am not able to rexec to gentoo.

I emerged net-misc/netkit-rsh.
Even ssh is not working so i wanted to use rexec.
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Veldrin
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PostPosted: Thu Nov 29, 2012 9:39 am    Post subject: Reply with quote

you need to start the daemon the target machine in order to get it working.
Run as root the following commands for ssh and rexec respectively
Code:
/etc/init.d/sshd start
/etc/init.d/rexecd start


if you want the system to start a daemon automatically us the following commands for ssh and rexec respectively
Code:
rc-update add sshd default
rc-update add rexec default


like i mentioned my the initial post, if there is no good reason to use rexec, I strongly recommend to use ssh.
if you haven't done so, you have to emerge openssh (or dropbear) for ssh to work.

HTH
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sreelakshmi.madisetty
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PostPosted: Thu Nov 29, 2012 10:11 am    Post subject: Reply with quote

Hi,

When i restart sshd it throws the following error:

gentoo / # /etc/init.d/sshd restart
* stopping sshd
* starting udev
* start-stop-daemon: /sbin/udevd already running
* Failed to start udev
* ERROR: udev failed to start
* starting sshd

if i give.. ssh hostname date, it throws error saying connection refused.
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Veldrin
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PostPosted: Thu Nov 29, 2012 11:11 am    Post subject: Reply with quote

are you trying this inside a chroot?
are you currently installing gentoo?

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sreelakshmi.madisetty
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PostPosted: Thu Nov 29, 2012 12:04 pm    Post subject: Reply with quote

yes i am inside chroot.
I installed gentoo, but after compiling i didnt reboot the gentoo due to fear it will go to kernel panic.

So i am trying all the commands without rebooting itself.
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sreelakshmi.madisetty
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PostPosted: Thu Nov 29, 2012 12:54 pm    Post subject: Reply with quote

Hi Veldrin,

After compiling the kernel and configuring the grub, when i reboot my gentoo it throws the following error

VFS: Cannot open root device sda3 or unknown-block(0,0)
Please apend a correct "root=" boot option:here are the avilable partitions:

sr0 driver:sr
Kernel panic-not syncing: VFS:unable to mount root fs on unknown-block(0,0)


I am not understanding where i am going wrong. Appreciate ur help in solving this.

Let me know if you have any link for installing gentoo properly.

Sree...
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Veldrin
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PostPosted: Thu Nov 29, 2012 1:10 pm    Post subject: Reply with quote

ok, that would explain the message.

from the later error message, I can read, that it is able to boot the kernel, but unable to mount /
please post /etc/fstab and your grub.conf.

are you using a custom kernel? are you using genkernel?
for a custom kernel, http://kernel-seeds.org/ is a good source.
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John R. Graham
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PostPosted: Thu Nov 29, 2012 2:45 pm    Post subject: Reply with quote

Moved from Gentoo Chat to Installing Gentoo.

- John
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sreelakshmi.madisetty
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PostPosted: Fri Nov 30, 2012 5:14 am    Post subject: Reply with quote

Hi Veldrin,

I am using custom kernel.

Please find the /etc/fstab and grub.conf entries:

/etc/fstab entries:
============

/dev/sda1 /boot ext2 defaults,noatime 0 2
/dev/sda2 none swap sw 0 0
/dev/sda3 / ext3 noatime 0 1

/dev/cdrom /mnt/cdrom auto noauto,user 0 0


grub.conf entries:
============
default 0
title Gentoo Linux 3.5.7
root (hd0,0)
kernel /boot/kernel-3.5.7-gentoo root=/dev/sda3

title Gentoo Linux 3.5.7 (rescue)
root (hd0,0)
kernel /boot/kernel-3.5.7-gentoo root=/dev/sda3 init=/bin/bb
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