Re: [CentOS] CentOS-7 re-install
On Friday 07 November 2014 13:43:42 James B. Byrne wrote: > On Thu, November 6, 2014 10:02, Tony Molloy wrote: > > Hi James, > > > > From an old email of mine to the list. > > > >> Hi Tony > >> > >> Did you receive an answer to your question ? I didn't see > >> anything on the list ! I'm interested too. > >> > >> Thank you > > > > No but I sorted it out myself. I just took a chance, it was on a > > test server anyway ;-) > > > > In the disk partitioning screen you will see the old 6.5 > > installation. Clicking on it will bring up the existing 6.5 > > partitions. Then select each of the existing partitions and a > > configuration menu comes up which allows you to reformat the > > partition if required. So just don't reformat the partitions you > > want to keep .They then become part of the new 7.0 installation. > > > > Hope this helps. > > That is exactly what I ended up doing. It just seems a little odd > to me to require that amount of manual effort when one wants to > reuse the entire disk for a fresh install. I seem to recall that > in 6.5 one could simply tell the installer to do exactly that. It's called progress ;-) > > In any case, somehow I experienced the situation that, even though > I had 'deleted' each of the old mount points, the CentOS-7 > installer would not reuse the original boot partition space but > instead created a new one. I am not sure what was going on or > what I did that caused this. In the end I rebooted from the > liveCD and used the disk utility to manually remove all of the > partitions on the HDD and then re-installed from the minimal DVD. > That seems to have returned the partition table to something I am > more comfortable with. > -- Linux nogs.tonyshome.ie 2.6.32-504.el6.x86_64 #1 SMP Wed Oct 15 04:27:16 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS-7 re-install
On Thu, November 6, 2014 10:02, Tony Molloy wrote: > Hi James, > > From an old email of mine to the list. > >> > >> Hi Tony >> >> Did you receive an answer to your question ? I didn't see anything >> on the list ! I'm interested too. >> >> Thank you > > > No but I sorted it out myself. I just took a chance, it was on a test > server anyway ;-) > > In the disk partitioning screen you will see the old 6.5 installation. > Clicking on it will bring up the existing 6.5 partitions. Then select > each of the existing partitions and a configuration menu comes up which > allows you to reformat the partition if required. So just don't > reformat the partitions you want to keep .They then become part of the > new 7.0 installation. > > Hope this helps. > That is exactly what I ended up doing. It just seems a little odd to me to require that amount of manual effort when one wants to reuse the entire disk for a fresh install. I seem to recall that in 6.5 one could simply tell the installer to do exactly that. In any case, somehow I experienced the situation that, even though I had 'deleted' each of the old mount points, the CentOS-7 installer would not reuse the original boot partition space but instead created a new one. I am not sure what was going on or what I did that caused this. In the end I rebooted from the liveCD and used the disk utility to manually remove all of the partitions on the HDD and then re-installed from the minimal DVD. That seems to have returned the partition table to something I am more comfortable with. -- *** E-Mail is NOT a SECURE channel *** James B. Byrnemailto:byrn...@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 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS-7 re-install
On Thursday 06 November 2014 14:27:31 James B. Byrne wrote: > On Wed, November 5, 2014 19:41, Richard wrote: > > Original Message > > > >> Date: Wednesday, November 05, 2014 15:53:53 -0500 > >> From: "James B. Byrne" > >> To: centos@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 Hi James, >From an old email of mine to the list. > > > Hi Tony > > Did you receive an answer to your question ? I didn't see anything > on the list ! I'm interested too. > > Thank you No but I sorted it out myself. I just took a chance, it was on a test server anyway ;-) In the disk partitioning screen you will see the old 6.5 installation. Clicking on it will bring up the existing 6.5 partitions. Then select each of the existing partitions and a configuration menu comes up which allows you to reformat the partition if required. So just don't reformat the partitions you want to keep .They then become part of the new 7.0 installation. Hope this helps. Regards, Tony -- Linux nogs.tonyshome.ie 2.6.32-431.23.3.el6.x86_64 #1 SMP Thu Jul 31 17:20:51 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos -- Linux nogs.tonyshome.ie 2.6.32-504.el6.x86_64 #1 SMP Wed Oct 15 04:27:16 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS-7 re-install
On Wed, November 5, 2014 19:41, Richard wrote: > > > Original Message >> Date: Wednesday, November 05, 2014 15:53:53 -0500 >> From: "James B. Byrne" >> To: centos@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. Byrnemailto:byrn...@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 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[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? -- *** E-Mail is NOT a SECURE channel *** James B. Byrnemailto:byrn...@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 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS-7 re-install
Ok, how is this supposed to work? I have re-installed CentOS-7 over the first install. On the "Installation Destination" (JHC can they make these name any more pretentious? What happened to boot disk?) I have exactly one ATA WD5000. I chose 'I will configure partitioning'. On the Manual Partitioning page I see the previous installation file-system. I select each of the mount points and delete them using the (-) button (said metaphor also lifted directly from Apple OSX). This gives me the entire disk back. I then add mount points for /. /swap, /var/log, /tmp (probably unnecessarily but force of habit will out), and /var/spool (no users so no /home). Now when I reboot I get nothing but a flashing underscore in the top left hand corner of the monitor. Nothing else. What gives? -- *** E-Mail is NOT a SECURE channel *** James B. Byrnemailto:byrn...@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 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
