I have a 16GB USB stick which I want to format to f2fs
. On Linux, the format command itself can succeed. However, if I try to copy files to that stick, I got IO error. However, I can not mount it.
But the same stick works fine when formatted into other formats, say vfat
or ext4
. So I guess my USB stick is not faulty.
Any idea what might cause the error?
Update
I just tried again, and here's the output.
➜ /mnt sudo mkfs -t f2fs /dev/sdb1
F2FS-tools: mkfs.f2fs Ver: 1.4.0 (2014-09-18)
Info: sector size = 512
Info: total sectors = 32765952 (in 512bytes)
Info: zone aligned segment0 blkaddr: 256
Info: Discarding device
Info: This device doesn't support TRIM
Info: format successful
➜ /mnt sudo mount /dev/sdb1 usb
mount: /dev/sdb1: can't read superblock
Notice: I cannot read the superblock, even thought the format succeed.
Update 2
I tried to do fsck
, and I got
fsck from util-linux 2.25.2
Info: sector size = 512
Info: total sectors = 32765952 (in 512bytes)
[ASSERT] (sanity_check_nid: 225) --> nid[0x3] blk_addr[0x3e7d00] footer.nid[0x0]
NID[0x3] is unreachable
[FSCK] Unreachable nat entries [Fail] [0x1]
[FSCK] SIT valid block bitmap checking [Fail]
[FSCK] Hard link checking for regular file [Ok..] [0x0]
[FSCK] valid_block_count matching with CP [Fail] [0x0]
[FSCK] valid_node_count matcing with CP (de lookup) [Fail] [0x0]
[FSCK] valid_node_count matcing with CP (nat lookup) [Ok..] [0x1]
[FSCK] valid_inode_count matched with CP [Fail] [0x0]
[FSCK] free segment_count matched with CP [Ok..] [0x1f01]
[FSCK] next block offset is free [Ok..]
[FSCK] other corrupted bugs [Fail]
I tried to format the partition again, and still got this error.