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Re: Questions after doing update and upgrade on Stretch

On 05/21/2017 09:31 AM, Dejan Jocic wrote:
On 21-05-17, Richard Owlett wrote:

My questions:

1. In the first run, I don't understand:
     Processing triggers for initramfs-tools (0.130) ...
     update-initramfs: Generating /boot/initrd.img-4.9.0-2-686-pae
     I: The initramfs will attempt to resume from /dev/sda5
     I: (UUID=5d0c821b-26b2-4d38-b7fe-dc7db1b72576)
     I: Set the RESUME variable to override this.
 As /dev/sda5 is my SWAP.

2. I don't understand any implications of:
     The following packages have been kept back:
       linux-image-686-pae xorg xserver-xorg


As for number 1 can't say much about it, I do not get it either. But 2
happens because you've used apt-get upgrade instead of apt-get
dist-upgrade. Packages that will uninstall some packages already
installed on your system and that will change some dependencies
require dist-upgrade. It happens always in case of linux-image packages.
It will leave your previous working linux-image on though, but will
uninstall one older than that, so you will always end up with chance
to  boot in working kernel, if new one messes up some things.

If I had problems after doing apt-get dist-upgrade,
  1. how would I distinguish a kernel problem from other problems?
  2. how would I boot with the previous kernel?
  3. is there some specific documentation I should be reading?

I've done online upgrades before having relied on purchased DVD sets of point releases due to bandwidth constraints.

Thank you.

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