I've been considering the upgrade from Snow Leopard to Lion, but will probably wait just a little while longer. I have a (Sept 2010) MacBook Pro, it has been an excellent machine - I also have a 21" iMac and a standard MacBook all of which perform.
The issue that I have is that on the MacBook Pro I run Virtual Box and Solaris 11 among others, as does one of the guys that I work with. He has recently come across an interesting feature - which we have not been able to resolve so far.
Once he upgraded to Lion and when running the Solaris Virtual Machine, if he left the Macbook and it went into hibernate the following happened.
1 The MacBook got very hot.
2 If the power cube was plugged in it became too hot to touch.
3 When you eventually got onto the Virtual machine typing was near impossible due to repeating keys.
4 When you could have a look around - the 15 min Load Average on the Solaris Virtual M/C could be well up into the 2000's.
I'm guessing that this is actually a Virtual Box problem, just high lighted by Lion. We are going to go to Mountain Lion on his machine, to see if that resolves the problem.
I have been in touch with Oracle as the latest version of VBox was used as was a downloaded virtual machine from them. I'll keep people posted if there are any changes.
I do like the look of Mountain Lion, really getting towards what Sun's Project Looking Glass was all about - just you don't need an enterprise class server to run it!
I am thinking to purchase a new MacBook Air, 13 inch.
Anyone have a MacBook Air? What do you think about it? Seems expensive, a bit. Is it worth it? (9 Replies)
REDHAT-UPGRADE-TOOL(8) redhat-upgrade-tool User Manual REDHAT-UPGRADE-TOOL(8)NAME
redhat-upgrade-tool - Red Hat Upgrade tool
SYNOPSIS
redhat-upgrade-tool [OPTIONS] SOURCE
DESCRIPTION
redhat-upgrade-tool is the Red Hat Upgrade tool.
The redhat-upgrade-tool client runs on the system to be upgraded. It determines what packages are needed for upgrade and gathers them from
the source(s) given. It also fetches and sets up the boot images needed to run the upgrade and sets up the system to perform the upgrade at
next boot.
The actual upgrade takes place when the system is rebooted, using the boot images set up by redhat-upgrade-tool. The upgrade initrd starts
the existing system (mostly) as normal, lets it mount all the local filesystems, then starts the upgrade.
When the upgrade finishes, it reboots the system into the newly-upgraded OS.
OPTIONS
Optional arguments
-h, --help
Show a help message and exit.
-v, --verbose
Print more info.
-d, --debug
Print lots of debugging info.
--debuglog DEBUGLOG
Write debugging output to the given file. Defaults to /var/log/redhat-upgrade-tool.log.
--reboot
Automatically reboot to start the upgrade when ready.
SOURCE
These options tell redhat-upgrade-tool where to look for the packages and boot images needed to run the upgrade. At least one of these
options is required.
--device [DEV]
Device or mountpoint of mounted install media. If DEV is omitted, redhat-upgrade-tool will scan all currently-mounted removable devices
(USB disks, optical media, etc.)
--iso ISO
Installation image file.
--network VERSION
Online repos matching VERSION (a number or "rawhide")
Multiple sources may be used, if desired.
Additional options for --network
--enablerepo REPOID
Enable one or more repos (wildcards allowed).
--disablerepo REPOID
Disable one or more repos (wildcards allowed).
--addrepo REPOID=[@]URL
Add the repo at URL. Prefix URL with @ to indicate that the URL is a mirrorlist.
--instrepo REPOID
Get upgrader boot images from the repo named REPOID. The repo must contain a valid .treeinfo file which points to the location of
usable kernel and upgrade images.
Cleanup commands
--resetbootloader
Remove any modifications made to bootloader configuration.
--clean
Clean up everything written by redhat-upgrade-tool.
EXAMPLES
redhat-upgrade-tool --network 7.0 --instrepo <repo URL>
Upgrade to RHEL 7.0 by downloading all needed packages and data from the specified repository.
redhat-upgrade-tool --device --network 7.0
Upgrade to RHEL 7.0 using install media mounted somewhere on the system, fetching updates from the network if needed.
EXIT STATUS
0
Success.
1
Cancelled by user, failure writing files to disk, or other unknown error
2
Failed to download/copy files from the given SOURCE
3
RPM upgrade transaction test failed
BUGS
The --iso image must be on a filesystem listed in /etc/fstab.
AUTHORS
Will Woods <wwoods@redhat.com>
redhat-upgrade-tool 11/08/2013 REDHAT-UPGRADE-TOOL(8)
