Maybe I was a little too stingy with my information. I thought I had provided
enough but maybe not for every reader, especially when trying to cross from
English to another language more familiar to a reader.
Let me rehash it....
The original installation was Ubuntu 10.0.4. Last week I upgraded it from
14.04 LTS to 16.04 LTS using the do-release-upgrade while online. This is the
recommended method.
It worked for previous release upgrades, such as up to the 14.04 release on
that PC, and on a few others likely from 12.04 and earlier on several Ubuntu PCs.
All filesystems were and are reiserfs. This filesystem was created during the
original installs, for Ubuntu and Debian.
Why Reiser? I run a Usenet server farm, and the reiserfs was faster than ext2
when I built the multi-server farm. Reiserfs has never lost one bit, and I can
say I've never had a Linux system crash. I have no reason to change the
multiple PCs now, which would be a big job.
https://en.wikipedia.org/wiki/ReiserFS#Performance
I also run HTTP and mail servers, and am a believer in "if it ain't broke,
don't fix it!" I'm 72, have forgotten a lot of what I once knew, and don't
care to start over building systems just to keep up with progress.
Some of these Ubuntu PCs were changed to Debian in the past, using the minimal
or small optical media installation method (not from the complete set of
dozens of CDs/DVDs). Debian calls it the Network Install, "
https://www.debian.org/CD/live/index.en.html " This time specifically from the
downloaded CD created from the "debian-8.7.1-amd64-netinst.iso" image (in case
the reiserfs omission was in an earlier Debian 8 release).
I use the Advanced Options then select Expert Install in the Installer Boot
Menu, where the first 18 or so lines are:
Installer boot menu : Advanced Options
Expert Install
Choose language : English
Area : US
LOCALE : en.US.UTF-8
No additional locales
Keyboard layout : PC-Style
Keymap : American English
Detect and mount CD-ROM
Keep usb-storage kernel module
PCMCIA : Blank
Load Installer Components :
Choose Mirror
portmem-reiserfs
reiserfs-modules
Detect Network Hardware
Configure the Network
Auto-configure with DHCP? : No
Specifically these two lines (taken from a Debian 6.0.2.1 installation log)
were not available on the debian-8.7.1-amd64-netinst CD:
portmem-reiserfs
reiserfs-modules
Without these the reiserfs cannot be installed from this media for a new system.
I could have used something like a GParted_live CD to partition the hard drive
for reiserfs, then reboot using the debian-8.7.1-amd64-netinst, CD but without
those two reiserfs installer components shown above, I doubt that the Debian
installer would have recognized the partition(s).
I did try but could not progress beyond the partitioning screen without
choosing a filesystem that was offered. Both the reiserfs and reiser4 were not
on the list.
So I chose the next-best which was ext3/ext4, and only for the root (/)
partition, knowing I didn't need anything from the previous Ubuntu system,
except for data in the separate /home partition (a reiserfs partition).
Accessing files on the reiserfs partition is not the issue. I can do that, and
have done that.
I also have the /home partition backed up (with rsync) to another Ubuntu
8.04/4 PC in the basement. It has a 1.5 TB HDD. Plus I have copied the whole
/home directory up to this Debian 7.11, which sits next to the Debian 8.7.1,
making work easier.
Pascal, I have what I need, so there is no reason to continue this discussion.
Unless you can point me to documentation that announces the end of reiserfs
support in Debian 8, or one of the point releases, and why they decided to
drop reiserfs. Perhaps it was an unintended omission, a bug in the Debian
installer, or whatever, and maybe will be reinstated in a later release. My
guess is since Hans Reiser is behind bars, and Namesys is no longer, Debian
felt that there would be no path for upgrades in the future.
https://en.wikipedia.org/wiki/Namesys
I've also located some information that I will check out for a future system
upgrade:
https://www.debian.org/releases/stable/amd64/ch03s05.html.en
https://www.debian.org/releases/stable/amd64/apds03.html.en
Thanks for your offer to assist, and have a nice week.