Hi all,
I updated the Stefan's program btrfs-show-super. Now it prints the results of
some sanity checks (about checksum and superblock magic string), allow
more than one dovice as argument and a '-a' switch which dumps all the
device superblocks.
# btrfs-show-super /dev/sdh1
superblock: bytenr=65536, device=../sysfs/disks/disk-02.img
---------------------------------------------------------
csum 0x64d9fdb9 [match]
bytenr 65536
flags 0x1
magic _BHRfS_M [match]
fsid 6d6141a6-5440-4f75-9c85-6d0ec7450187
label test2
generation 15
root 29396992
sys_array_size 355
chunk_root_generation 15
root_level 0
chunk_root 20975616
chunk_root_level 0
log_root 0
log_root_transid 0
log_root_level 0
total_bytes 117041005568
bytes_used 290816
sectorsize 4096
nodesize 4096
leafsize 4096
stripesize 4096
root_dir 6
num_devices 4
compat_flags 0x0
compat_ro_flags 0x0
incompat_flags 0x1
csum_type 0
csum_size 4
cache_generation 15
dev_item.uuid 421d2bdb-c9d9-41f8-a966-57248605f18c
dev_item.fsid 6d6141a6-5440-4f75-9c85-6d0ec7450187 [match]
dev_item.type 0
dev_item.total_bytes 3222274048
dev_item.bytes_used 1900216320
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
You can pull the source from:
http://cassiopea.homelinux.net/git/btrfs-progs-unstable.git
branch
super-block-dump
Changelog:
v1->v2 Patch cleanup (removed unnecessary spaces to be compliant to the
kernel coding style)
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gpg @keyserver.linux.it: Goffredo Baroncelli (kreijackATinwind.it>
Key fingerprint BBF5 1610 0B64 DAC6 5F7D 17B2 0EDA 9B37 8B82 E0B5
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