Re: In-place upgrade from i386
Joerg Dorchain [EMAIL PROTECTED] writes:
Hello,
I have a system with an intel core 2 dou CPU, which currently runs fine
Debian-i386.
I want to change it to amd64 with certain conditions:
- Same package selection
- Same debconf
- Same config files
- Same disk afterwards
as on current i386 when it runs amd64.
So far I managed to run an amd64 kernel.
For the user space I though an
apt-get -o APT::Architecture=amd64 {update|-f install}
would do it, but stop immediately with
E: Internal Error, Could not perform immediate configuration (2) on
libc6
Any other ideas?
Is an in-place debootstrap possible? Or can I hook the disk on another
system and do a debboostrap there without loosing the above mentioned
information?
TIA,
Joerg
You can do an in-place upgarde with some hacks and I would rather you
won't even try.
- Create a copy of the libc6 and ld.so and add the dir to
/etc/ld.so.conf. Worst case you have to run the ld with full path
and pass the binary you need as argument. E.g.:
/backup/ld-2.3.6.so /bin/ls
Also add /lib32, /usr/lib32 to ld.so.conf and make them links to
/emul/ia32-linux/lib and /emul/ia32-linux/usr/lib.
- Rename maintainer files in /var/lib/dpkg/info.
You need to rename any package that contains a library, e.g. prefix
them with ia32-. E.g. zlib1g - ia32-zlib1g.
- Move libraries and docs.
You need to move all libraries from /lib to /lib32 and /usr/lib to
/usr/lib32. But dont't move subdirs.
For /usr/share/doc you need to rename the directories to match the
renaming done in the last step. Beware that some dirs are links.
Also look out for diversions.
- Fix diversions and status file
You need to change the package names in diversions and status files
to match the names chosen above (ia32-zlib1g). This includes
especially the Depends, Conflicts, Pre-Depends lines.
Also change the Architecture field to amd64.
If you have done all this and you still have a running system then you
can start to upgrade.
Now install libc6 (the old 32bit one is now ia32-libc6), perl, dpkg,
apt in that order while forcing the arch to amd64. This is the big
test if you did everything right above.
Reinstall every not renamed package on your system (everything not
ia32-...). This causes each of them to be upgraded to the 64bit
version. If you upgarde from sarge to etch at the same time then
upgrade, dist-upgrade will do most of them automatically.
Now you should have a full 64bit system with some unused 32bit cruft
left behind. Purge all ia32-* packages to get rid of cruft.
Enjoy or despair, your choice.
MfG
Goswin
PS: Doesn't reinstalling sound so much simpler?
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Re: In-place upgrade from i386
On Fri, Feb 15, 2008 at 03:16:20PM +0100, Joerg Dorchain wrote: I found that webpage: http://www.digitalkingdom.org/~rlpowell/hobbies/debian_arch_up/index.html At first glance, it looks sane to me. Comments are welcome ;) Ok, this basically works. Some comments by my: - I used bash-static to be on the save side. - The crucial point is the 64bit libc install. This only runs without error with the ld-linux.so link. I have the impression that some install scripts keep setting this link to the wrong place, so the 64bit libc does not install. It makes no sense to continue without it, so set this link immediately before the dpkg command. - Keep the 32bit selections file around. Apt-get upgrade installed about 30 additional packages + libraries. You might want to trim that down. - An archive or a fast network connection comes in handy - For getting the packages + dependencies before the 64bit apt works, apt-get -o Apt::Architecture=amd64 -d works well. - This all goes with minimal downtime. Services are only stopped and restarted with the normal upgrade process. Of course, X, firefox and the usual suspects are very confused when you change their .so modules while they are running, but I do not consider this specific to the architecture change. Bye, Joerg signature.asc Description: Digital signature
In-place upgrade from i386
Hello,
I have a system with an intel core 2 dou CPU, which currently runs fine
Debian-i386.
I want to change it to amd64 with certain conditions:
- Same package selection
- Same debconf
- Same config files
- Same disk afterwards
as on current i386 when it runs amd64.
So far I managed to run an amd64 kernel.
For the user space I though an
apt-get -o APT::Architecture=amd64 {update|-f install}
would do it, but stop immediately with
E: Internal Error, Could not perform immediate configuration (2) on
libc6
Any other ideas?
Is an in-place debootstrap possible? Or can I hook the disk on another
system and do a debboostrap there without loosing the above mentioned
information?
TIA,
Joerg
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Description: Digital signature
Re: In-place upgrade from i386
On Fri, 2008-02-15 at 10:17 +0100, Joerg Dorchain wrote: Hello, I have a system with an intel core 2 dou CPU, which currently runs fine Debian-i386. I want to change it to amd64 with certain conditions: - Same package selection - Same debconf - Same config files - Same disk afterwards as on current i386 when it runs amd64. --snip-- There was a thread on here a month or two ago about this same topic. The short version is that it IS possible to do this. However, I wouldn't recommend it as it's more trouble than its worth. Your best bet would be something simple like dpkg --get-selections selections.list tar czf etc.tar.gz /etc/ Then just do a clean install of amd64 on a separate disk/partition, and then dpkg --set-selections selections.list apt-get -f install cd / tar xzf etc.tar.gz Note that the commands above are just off the top of my head. If you use them and your system launches a nuclear weapon at your house, I'm not responsible. :) Make sure you know what each of them does before you do it. If you don't know and can't figure it out, don't do it. If you happen to have /home on a separate partition, you can just remount it later and you'll be all set. I did almost the exact above procedure about a year ago due to a corrupted root partition. I thankfully had both /etc and /home on a separate partition, so it was quite straightforward. It just took a couple of hours for all of the packages to install and I was up and running good as new. -- Alex Malinovich Support Free Software, delete your Windows partition TODAY! Encrypted mail preferred. You can get my public key from any of the pgp.net keyservers. Key ID: A6D24837 signature.asc Description: This is a digitally signed message part
Re: In-place upgrade from i386
On Fri, Feb 15, 2008 at 01:52:52AM -0800, Alex Malinovich wrote: There was a thread on here a month or two ago about this same topic. The short version is that it IS possible to do this. However, I wouldn't recommend it as it's more trouble than its worth. Your best bet would be something simple like dpkg --get-selections selections.list tar czf etc.tar.gz /etc/ Then just do a clean install of amd64 on a separate disk/partition, and then dpkg --set-selections selections.list apt-get -f install cd / tar xzf etc.tar.gz I would back up at least /var/lib, and selectively restore at least things like /var/lib/mysql. Also /var/mail might be worth saving... If you have /home on a separate partition, and have (or can make) enough space there, back up the whole system partition there! There will always be something you need to restore later... or use a USB stick or disc for the backup (ipod? camera? what ever works). - Heikki -- Heikki Levanto In Murphy We Turst heikki (at) lsd (dot) dk -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: In-place upgrade from i386
On Fri, Feb 15, 2008 at 01:52:52AM -0800, Alex Malinovich wrote: There was a thread on here a month or two ago about this same topic. The I found it. IMHO it helps, thanks. short version is that it IS possible to do this. However, I wouldn't recommend it as it's more trouble than its worth. Your best bet would be something simple like dpkg --get-selections selections.list tar czf etc.tar.gz /etc/ Then just do a clean install of amd64 on a separate disk/partition, and then dpkg --set-selections selections.list apt-get -f install cd / tar xzf etc.tar.gz Note that the commands above are just off the top of my head. If you use them and your system launches a nuclear weapon at your house, I'm not responsible. :) Make sure you know what each of them does before you do it. If you don't know and can't figure it out, don't do it. I found that webpage: http://www.digitalkingdom.org/~rlpowell/hobbies/debian_arch_up/index.html At first glance, it looks sane to me. Comments are welcome ;) Bye, Joerg signature.asc Description: Digital signature
Re: In-place upgrade from i386
On Fri, Feb 15, 2008 at 10:17:32AM +0100, Joerg Dorchain wrote: I have a system with an intel core 2 dou CPU, which currently runs fine Debian-i386. I want to change it to amd64 with certain conditions: - Same package selection - Same debconf - Same config files - Same disk afterwards as on current i386 when it runs amd64. So far I managed to run an amd64 kernel. See the thread from last month. Here are some ideas: You can't just change sources list and go. The libs are in the wrong place. Assuming that you want to avoid downtime, I see a couple of possibilities. 1. Add a drive to the box, use debootstrap to install amd64 to that while you still run i386. Then install a kernel, change grub, and reboot. 2. If you have free space on the drive, install to that. 3. With either a free drive or a free partition, if you can tolerate a bit of downtime, use the instaler, set up LVM on the spare partitions and do a minimal install (no tasks selected), and ensure that it boots. Then reboot back to your i386 to carry on with life while you finish installing and configuring the amd64 install. Once this is done, chang grub so that amd64 is the default boot. You can then either leave the i386 install as is to use as a chroot or just remove it, make the partition a PV for your amd64 LVM system and use the space as you want. Doug. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
