On 6/5/2017 12:09 μμ, Nikolaos Milas wrote:
The VM booted fine after /etc/fstab update!
I did another test, which was also successful.
Below follows the output from the process (after booting in
troubleshooting mode using the CentOS 7 media disk):
1) Continue
2) Read-only mount
3) Skip to shell
4) Quit (Reboot)
Please make a selection from the above: 1
=======================================================
=======================================================
Rescue Mount
Your system has been mounted under /mmt/sysimage.
If you would like to make your system the root environment, run the
command:
chroot /mnt/sysimage
Please press <return> to get a shell.
When finished, please exit from the shell and your system will reboot.
sh-4.2# umount /dev/vda1
sh-4.2# xfs_admin -U restore /dev/vda1
Clearing log and setting UUID
writing all SBs
new UUID = b05227b2-7c86-4ccf-81ff-204a9a80f789
sh-4.2# mount /dev/vda1 /mmt/sysimage/boot
sh-4.2# chroot /mnt/sysimage
bash-4.2# grub2-install /dev/vda
Installing for i386-pc platform.
Installation finished. No error reported.
bash-4.2# nano /etc/fstab
bash-4.2# exit
sh-4.2#
Note also that after logging into the (finally bootable) OS, we should
follow the directions: "Resetting and Reinstalling GRUB 2".
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/System_Administrators_Guide/sec-Reinstalling_GRUB_2.html#sec-Resetting_and_Reinstalling_GRUB_2
Best regards,
Nick
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