I get an I-O error, if Selinux is active('enforcing') . . .
Jeff Schaller wrote:
"It's been several years, since OP asked this question, but I have stumbled upon this today as well... And since both me and him were using Fedora when this happened, I believe this is caused by the SELinux itself...
Thank You so much for this useful information !
A minute ago I finished rebuilding my Fedora 34:
1. tar-restore of Fedora 33, correcting the UUIDs in grub.cfg and /etc/fstab, do a "touch ./autorelabel" ;) - reboot and WAIT . . . :eek:
2. system-upgrade to 34
3. recompiling the...
The latter . . . ;)
As btrfs is "work in development", I think snapshots aren't already available for Fedora 34 ?!
In the beginning of this year I first read about btrfs-snapshots, tried to do one, but failed . . ...
Thank You for Your reply, I had a look to it already BEFORE I formatted the broken btrfs-partition . . . :-(
Since the partition coudn't be mounted, there's no other help as do a format !?
My above mentioned "dd-method" isn't functional at all in that case!
I'M SORRY FOR MISGUIDING @aug7744...
I agree . . .
This happened for Fedora 34 in my case . . .
I was able to draw a backup of the affected btrfs-partiton via "testdisk" or by
dd if=/dev/btrfs-partition of=image.dd
then do
mkfs.btrfs -f /dev/btrfs-partition
and restore by
dd if=image.dd of=/dev/btrfs-partition
I put the new...