Difference between revisions of "ASL installation"

Revision as of 17:29, 9 April 2007 (view source) Tomkerswill (Talk | contribs) m (Tidied up my lilo.conf info) ← Older edit		Revision as of 13:13, 18 April 2007 (view source) Scott (Talk | contribs) Newer edit →
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		+	'''Note for SELinux environments'''
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		+	SELinux policies can interfere with RPM updates. This manifests in mystereious failures in %pre and %post macros (confirmed on RHEL4). Disable SELinux if you encounter any issues of this nature by setting selinux=0 in the kernel boot parameters. setenable 0, and disabling SELinux with sysctl have thus far proved ineffective.

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Revision as of 13:13, 18 April 2007

These are rough notes for the ASL 2.0 pre-release

Note for SELinux environments

SELinux policies can interfere with RPM updates. This manifests in mystereious failures in %pre and %post macros (confirmed on RHEL4). Disable SELinux if you encounter any issues of this nature by setting selinux=0 in the kernel boot parameters. setenable 0, and disabling SELinux with sysctl have thus far proved ineffective.

automated installer (not for VPS's):

wget -q -O - http://www.atomicorp.com/installer/install-asl.sh |sh

manual installation (VPS users, or anyone that wants to do this manually)

1) vim /etc/yum.repos.d/asl.repo

2) add the following:

[asl-bleeding]
name=ASL Bleeding
baseurl=http://USERNAME:PASSWORD@atomicorp.com/asl-bleeding/DISTRO/$releasever/$basearch

3) replace DISTRO with fedora, centos, redhat, and USERNAME/PASSWORD with your username and password from the signup page

4) yum install asl

5) vim /etc/asl/config

6) change USERNAME="USERNAME" to USERNAME="<your username>"

7) change PASSWORD="PASSWORD" to USERNAME="<your password>"

Testing the Kernel (Not for VPS users)

Grub Users

1) Once the Atomic kernel is installed, determine which position the Atomic kernel has been installed.

Example:

[root@ac3 ~]# cat /etc/grub.conf

# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd0,0)
#          kernel /vmlinuz-version ro root=/dev/hda3
#          initrd /initrd-version.img
#boot=/dev/hda
default=1
timeout=5
serial --unit=0 --speed=57600
terminal --timeout=5 serial console
title CentOS (2.6.17-1.art)
       root (hd0,0)
       kernel /vmlinuz-2.6.17-1.art ro root=LABEL=/ console=ttyS0,57600n8 selinux=0
       initrd /initrd-2.6.17-1.art.img
title CentOS (2.6.9-34.0.2.ELsmp)
       root (hd0,0)
       kernel /vmlinuz-2.6.9-34.0.2.ELsmp ro root=LABEL=/ console=ttyS0,57600n8
       initrd /initrd-2.6.9-34.0.2.ELsmp.img

Note the line: default=1, this indicates the kernel the system will boot by default, starting at position 0. Position 0 is "title CentOS (2.6.17-1.art)", and position 1 is "title CentOS (2.6.9-34.0.2.ELsmp)" in this example, indicating the system is configured to boot into the default CentOS kernel.

2) Type: grub

the following will be displayed:

GNU GRUB  version 0.97  (640K lower / 3072K upper memory)
[ Minimal BASH-like line editing is supported.  For the first word, TAB
  lists possible command completions.  Anywhere else TAB lists the possible
  completions of a device/filename.]
grub>

3) At the grub prompt set the default kernel to 0, and to only boot once with the following:

grub> savedefault --default=0 --once

4) type: quit

5) reboot the system. If for some reason the kernel does not work with the Atomic kernel, or is otherwise non-responsive, powercycling the system will restore the system to the default kernel.

Lilo Users

1) The art kernel should be listed in /boot - for example:

       /boot/vmlinuz-2.6.19-7.art

2) Create a symbolic link to this:

       ln -s  /boot/vmlinuz-2.6.19-7.art   /boot/vmlinuz-art

3) edit /etc/lilo.conf to add a section for the art kernel. Eg:

       image=/boot/vmlinuz-art
       label=lxart
       append="console=tty0 console=ttyS0,57600 panic=30"

4) Type: lilo to make the change permanent. Then to test that you can boot into the new kernel do

      lilo -R lxart
      shutdown -r now

5) When it's rebooted, doing a uname -r should show the new art kernel. Now you can make it permanent. Edit /etc/lilo.conf so that it has the line:

      default=lxart

6) type lilo. Then reboot.