First, Let me clarify, POS should have been PCLinuxOS...
Second, I DID install PCLinuxOS on my computer. During the installation, PCLinuxOS was installed on sdb, i.e. Drive "D"...sda, which is my WindowsXP drive, I would presume would be Drive "C". T hese drives are 500GB. The only partitions are on sdb for home, root, swap, the default locations and sizes as set up during the install for PCLinuxOS.
Third, after install, where everything went very smoothly, I changed the repository to the correct one to be able to install LibreOffice from the PCLinuxOS repositories. LibreOffice was not installed as it called for a Lib dependency.
Fourth, in checking in the PCLinuxOS forums guides or somewhere, the instructions said after an install, the user should update PCLinuxOS and select "all" to bring the installation up to current, which I did. I went to have dinner since the update would take about 45-60 min. When I got back to my computer, there was a message window with several (4-5) messages saying something about "default c:\" being used for installing some of the updates, after the install finished. I then rebooted my computer and could not boot into either PCLinuxOS nor WindowsXP. There was no error listed when selecting either PCLinuxOS or Windows, the computer just rebooted and came back to Grub. I never got to the point of being able to try and install LibreOffice, so LibreOffice is not part of this problem.
Since I did want to help the PCLinuxOS team with any installation problems, I have not touched sdb yet, in order to recover any "log" files, if desired, and I can use the PCLinuxOS live CD to access sdb for that purpose if it would help.
Whether or not anyone believes that PCLinuxOS would NO WAY alter a windows partition does not apply to this situation since my Windows install is on a different drive, i.e. the "C:" drive, not a partition. So it seems to me that if there is a problem with any installation using a default of "C:" for any reason, I would think the development team would want to know about this potential problem of multiple drive installations. If not, that is fine, I will go ahead and reformat the drive.
1. There is no problem beyond user error on your part.
2. There is no reason to change your repo mirror to install LibreOffice, that's done with the LibreOffice Manager;
PC --> Office --> LibreOffice Manager.
3. Your Windows installation may be on a different drive, but it's still on a partition.
4. The procedure for upgrading is clicking the following, in Synaptic, in this order;
Reload --> Mark All Upgrades --> Apply then again
Apply in the confirmation window. This is to be done on first boot, immediately after logging in as your normal user for the first time, before any other procedure, and should also be done before installing any additional applications. Any future application installations should only be done after first doing the upgrade procedure, before selecting the specific application/s to be installed.
5. Actually it doesn't matter what you believe happened, the upgrade procedure only affects packages installed in the / partition of your PCLinuxOS installation. No Windows partition on any hard drive is ever touched. No partition from any other Linux installation is ever touched.
6. Linux, any brand, doesn't recognize the C:\ designation in any form. That's a Windows designation. All Linux hard drives take the designation /dev/sda, /dev/sdb, /dev/sdc, etc. Partition designations take the form /dev/sda1, /dev/sda2, /dev/sdb1, /dev/sdb2, etc. C:\ is a different language, and Linux doesn't speak that language.
7. There is no problem for the PCLinuxOS development team to address, as there are literally thousands of dual boot Windows - PCLinuxOS installations that are upgraded every day and what you describe simply does not happen.
If you wish to have Windows on a separate hard drive from your Linux installation, the correct procedure is to make the drive that is to receive the Linux installation the boot drive, in BIOS, then boot to the liveCD, install Linux, then install grub to the MBR of the same drive as the Linux installation. Grub will write a stanza to boot Windows from the second drive during the installation process, and a Windows option will appear in the boot menu. The Windows drive will remain intact, and totally untouched. Done this way, if the Linux drive fails, and is completely removed from the computer, the Windows drive will still boot in its normal fashion.
If you wish help with trying to fix whatever you've broken, first you need to provide accurate information, not tell us a story about what you think happened. The first thing we need is the
specs for your machine, then the
exact name of the .iso image you used to do the installation. You will undoubtedly be asked for other information, and if you don't know how to provide what is asked for, we will give instructions as to how to get it. If you don't know why a specific question is asked, answer it anyway. The person asking does know. If you want to
learn why the question was asked, provide the asked for information, and ask your question in the same reply.