On Tue, Aug 21, 2018 at 5:53 PM Yasha Karant <[log in to unmask]> wrote: > > During the upgrade of a SL 7 non-current system to SL 7 (via yum update > as root from the Internet), the campus network "glitched" and the system > hung. The 7.5 partially installed system panics; it has not recovered. > The 7 non-current will boot but no X (no GUI), only a scrolling text > terminal, presumably from which yum can be executed. If you want to keep this beastie alive, I urge you to: * Boot from a live USB or DVD image with networking enabled * Mount the old partitions at /mnt/sysimage, with subpartitions appropriately under that * chroot to /mnt/sysimage * Run "rpm --rebuilddb", because it is probably corrupt * Get the list of installed packages with "rpm -qa --qf '%{name}.%{arch}\n'" * For every package, use "yum upgrade $name" and "yum reinstall $name" * * yum reinstall may require enabling the obsolete repositories * One or more are likely to balk due to two distinct versions of the same package. Resolve that balking package manually, downloading the current version and using "rpm -U --replacepkgs $name" > I have downloaded Scientific-7.5-Install-Dual-Layer-DVD-x86_64.iso and > then put this onto an USB flash "thumb" drive that I have confirmed is > bootable and will start the installation steps. I do not want to do a > new install but rather an upgrade, not touching /home , /opt and the like. > > I have found old upstream vendor instructions for a previous upstream > vendor major release of the enterprise (not enthusiast) system; please > see below. How are these to > be modified for SL 7.5? If I boot the Install ISO image (from the USB > drive), is there a way to get to the old GUI upgrade option that seems > no longer available? It's nearly impossible to tell which components got messed up in a mass upgrade. Start from a cleaned up upgrade process, as described above. > Please reply to [log in to unmask] Any assistance would be appreciated. > > Yasha Karant