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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 10001279549440
[ 21.733817] BTRFS: device label 7c6e49a2:data devid 2 transid 2314880 /dev/md126
[ 22.163521] e1000e: eth0 NIC Link is Down
[ 22.231465] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 22.231468] 8021q: adding VLAN 0 to HW filter on device eth0
[ 25.777082] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: None
[ 25.777430] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 85.293620] BTRFS info (device md126): checking UUID tree
[ 86.713928] traps: leafp2p[3685] general protection ip:7fa1a2ad0c04 sp:7fa1a0fe8bd8 error:0 in
libc-2.19.so[7fa1a2a3a000+1a1000]
[ 119.047893] BTRFS error (device md126): parent transid verify failed on 35255717134336 wanted 2
123812 found 2314881
[ 119.058391] BTRFS error (device md126): parent transid verify failed on 35255717134336 wanted 2
123812 found 2314881
[ 119.058396] BTRFS warning (device md126): Skipping commit of aborted transaction.
[ 119.058400] BTRFS: error (device md126) in cleanup_transaction:1864: errno=-5 IO failure
[ 119.058401] BTRFS info (device md126): forced readonly
[ 119.058407] BTRFS info (device md126): delayed_refs has NO entry
[ 119.058427] BTRFS warning (device md126): btrfs_uuid_scan_kthread failed -30
[ 125.956296] NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery directory
[ 125.956303] NFSD: starting 90-second grace period (net ffffffff88f2f5c0)
[ 146.045372] nfsd: last server has exited, flushing export cache
[ 188.511468] NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery directory
[ 188.511480] NFSD: starting 90-second grace period (net ffffffff88f2f5c0)
BR gerd
7 Replies
Replies have been turned off for this discussion
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?
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