On Wed, November 5, 2014 19:41, Richard wrote: > > > ------------ Original Message ------------ >> Date: Wednesday, November 05, 2014 15:53:53 -0500 >> From: "James B. Byrne" <byrnejb at harte-lyne.ca> >> To: centos at centos.org >> Subject: [CentOS] CentOS-7 re-install >> >> I have booted the system from a live cd. I am looking at a 1.1GB >> volume that I presume is the /boot partition I created in the >> installer. Inside I see this: >> >> config-3.10.0-123.el.x86_64 >> /grub >> /grub2 >> initramfs-0-rescue-[md5. . .].img >> initramfs-3.10.0-123.el.x86_64 >> initrd-plymouth.img >> symvers-3.10.0-123.el.x86_64 >> System-map-3.10.0-123.el.x86_64 >> vmlinuz-0-rescue-[md5 as above] >> vmlinuz-3.10.0-123.el.x86_64 >> >> /grub contains: >> splash.xpm.gz >> >> /grub2 contains: >> /themes >> >> /grub2/themes contains: >> /system >> >> /grub2/themes/system contains: >> >> nothing at all >> >> So, what does CentOS-7 boot from? I take it that this is not >> normal? So where are the boot configuration files? Note, that I >> have only been working on this system through the GUI and I I did >> was install, update, played around with Gnome3, installed KDE, >> shutdown and re-installed over the original. >> >> So, whatever happened it is not because of anything one can only >> screw up from the cli. Since the re-install I have not been able >> to boot from the HDD. Seeing as there are no boot configuration >> files I can see why booting is a problem. But, how does the >> installer operate such that these critical files were not >> provided? > > The /boot/grub2 directory should have the files: > > device.map > grub.cfg > grubenv > > The grub.cfg looks kind of like grub/grub.conf and can be generated > using grub2-mkconfig (based on the files in /etc/grub.d and > /etc/default/grub). > > If you booted from a live cd I suspect that the full boot setup > isn't completed on the installed system, which would be why you > don't seem to be seeing the grub2 boot files. > I booted from the liveCD simply to see what the regular installer had done to the HDD. Eventually I did install from the liveCD and that has allowed the system to boot from the HDD again. I am sort of perplexed as to why there is no simple provision to reuse the entire disk as I recall was the case with previous versions of CentOS. Why the laborious requirement to delete each mount point from an install one wishes to remove entirely? In any case, I have gotten past the difficulty and have built zfs for 3.10.0-123-9.2. Now to see if I can figure out how to rebuild the system using zfs. -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB at Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3