On 6/15/20 12:57 AM, Samuel Sieb wrote:
On 6/14/20 9:40 PM, Robert McBroom via users wrote:
On 6/14/20 3:12 PM, Samuel Sieb wrote:
On 6/14/20 9:39 AM, Robert McBroom via users wrote:
Copied my fedora 29 system to an SSD partition. Booting takes me to
Grub-rescue>
SuperGrub2 2.04s1 finds the system and boots it but it is read
only.?? Knoppix reads and writes to the system with no problem.
Used Knoppix to fix /etc/fstab and grub.cfg. I think grub-install
is needed from fedora but have to be able to write to the drive.
You need to provide more details. What do you mean it's read only?
And grub-install write to the raw hard drive, not to a filesystem.
A Fedora live boot or a net install rescue boot is a good way to fix
things.
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Any attempt to write to the system gets a message that the file
system is read only. grub2-install /dev/sda fails trying writes to
/boot/grub2/i386-pc. ls -l gives a list that looks completely normal
with the expected permissions owners and groups.
Oh, right, it wants to set up the modules too.
What does "mount" show? Try running "mount -o rw,remount /". Or use
"/boot" instead if you have a separate partition for it.
The simplest method though is still to download a Fedora net install
image and use the rescue mode. It sets everything up for you to
chroot to the installed system and run whatever you want. Just be
aware that it will do a full relabel on reboot. If you're sure you
didn't change anything important, you can remove the /.autorelabel
file before rebooting.
Found my problem and it is a curiosity on how the disk designations
interact. In entering the / UUID in fstab a 6 became a b. The entries
in grub.cfg were correct and apparently allowed the system to boot and
run as long as there was nothing needing to be written to the drive. I
boot to a terminal and then start the graphical display which could not
happen without writing to the .serverauth.xxx and .Xauthority files
among others. Corrected, the system is working without problems and
upgraded from f29 to f32. Didn't have to dig out the warranty on the
drive after all.
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