I was about to give up ..but I was trying older/newer kernels/ other
distros..
Tried multiple but one last try on Linux Mint opened the doors..
I was surprised to see the filesystem mounted fine with no errors..
BTRFS info (device sdd1): disk space caching is enabled
[ 396.259897] BTRFS info (device sdd1): has skinny extents
mint@mint:~$ uname -a
Linux mint 5.4.0-58-generic #64-Ubuntu SMP Wed Dec 9 08:16:25 UTC 2020 x86_64
x86_64 x86_64 GNU/Linux
mint@mint:~$ btrfs version
btrfs-progs v5.4.1
mint@mint:~$ sudo btrfs inspect-internal dump-super
/dev/disk/by-uuid/ae9d1623-f910-4dec-a88f-f762dbdba35e
superblock: bytenr=65536,
device=/dev/disk/by-uuid/ae9d1623-f910-4dec-a88f-f762dbdba35e
---------------------------------------------------------
csum_type 0 (crc32c)
csum_size 4
csum 0x2564561f [match]
bytenr 65536
flags 0x1
( WRITTEN )
magic _BHRfS_M [match]
fsid ae9d1623-f910-4dec-a88f-f762dbdba35e
metadata_uuid ae9d1623-f910-4dec-a88f-f762dbdba35e
label DataNew
generation 10270
root 944046407680
sys_array_size 129
chunk_root_generation 10270
root_level 0
chunk_root 944923213824
chunk_root_level 1
log_root 0
log_root_transid 0
log_root_level 0
total_bytes 2000405643264
bytes_used 955398033408
sectorsize 4096
nodesize 16384
leafsize (deprecated) 16384
stripesize 4096
root_dir 6
num_devices 2
compat_flags 0x0
compat_ro_flags 0x0
incompat_flags 0x161
( MIXED_BACKREF |
BIG_METADATA |
EXTENDED_IREF |
SKINNY_METADATA )
cache_generation 10270
uuid_tree_generation 10270
dev_item.uuid 67a4b867-0d9d-498b-a311-19f7b9bc5c77
dev_item.fsid ae9d1623-f910-4dec-a88f-f762dbdba35e [match]
dev_item.type 0
dev_item.total_bytes 1000201838592
dev_item.bytes_used 957811261440
dev_item.io_align 4096
dev_item.io_width 4096
dev_item.sector_size 4096
dev_item.devid 1
dev_item.dev_group 0
dev_item.seek_speed 0
dev_item.bandwidth 0
dev_item.generation 0
Totally surprised that dev_item.total_bytes is different here...
I will recheck the btrfs version on my Ubuntu hirsute..
Any thoughts..? For now, glad I haven't lost any data.. (yet)
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https://bugs.launchpad.net/bugs/1931790
Title:
Unable to mount btrfs RAID 1 filesystem after reboot - Error - device
total_bytes should be at most X but found Y
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