Linked by Jordan Spencer Cunningham on Tue 11th Aug 2009 00:47 UTC
Linux Hot off the compilation press, Arch Linux comes to its full 2009.08 grandeur with a myriad of new and updated features, including exciting new additions to be utilized in the AIF (Arch Linux Installation Framework) and more, detailed within.
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Ford Prefect
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Well, the toughest that can happen to you is that some services stop working because the configs you had are not compatible any more. Warnings about this are normally printed during the update and can also be found in the pacman (package manager) log file.

Back in the early days, there was a lot going on with udev as a replacement of devfs etc. which could even make your system fail to boot. Here, crucial changes had to be made, like editing grub config. All the changes needed to stay compatible in general have to be done manually.

So every time you do an update: Watch out the messages printed and perhaps gather additional information on the website/forums.

Situation has improved a lot in the last years:
1. big changes like the transition to udev which led to "breakage" of the whole system are over
2. pacman and packaging policies have been improved to make life easier for the user (compatibility warnings were not common back then, you had to read them on the website)
3. for really tricky cases, even Arch starts using transition scripts (lately: change from vt* to tty -- nothing to be done by the user to keep the system booting/running)

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