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Forum Discussion
Volume Read Only - OS 6.9.3
Hi, after a reboot my volume is now read only. Disks are ok, everything is backuped what can i do to solve it? dmesg shows: 21.497390] md126: detected capacity change from 0 to 10001279549...
Clearly there's an issue with BTRFS in your log. Options are to
(a) use paid netgear support (my.netgear.com), and see if they can solve it short of a factory reset
(b) bite the bullet- do a factory reset, reconfigure, and restore data from your backup.
Any idea on what might have caused this? For instance, was there an unexpected power cut?
There was no power cut. I did i simple reboot out of the gui because i had problems with the timemashine share. Rebiulding the device will take a week I habe 20TB data on it and it would mean a lost my installtion the second time in 2 years because of btfrs problems.
That is verry bad I would never gain buy an netgear device!
Whats about the repair options? I umount all btfrs mounts and tried the command:
btrfs check --repair /dev/md127
The command answered with "/dev/md126 busy or in use"
Trying btrfs check --repair /dev/md126, I get "/dev/md127 busy or in use"!
aequus wrote:
Whats about the repair options? I umount all btfrs mounts and tried the command:
btrfs check --repair /dev/md127
The command answered with "/dev/md126 busy or in use"
Trying btrfs check --repair /dev/md126, I get "/dev/md127 busy or in use"!
I haven't used --repair, and it is considered a "dangerous" option in the btrfs wiki. I'd start w/o the --repair, and see what problems it finds.
Did you unmount /apps?
yes apps was dismounted, everything exect md0 and md1. In the end I have to (try to9 repair to avoid a new installation. What caused the error message "/dev/md127 busy or in use" amd what can i od?
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