Hello Ryusuke,
I changed the code some to:
diff -u --ignore-all-space fsck0.nilfs2.c ~/nilfs/nilfs-utils.git/nilfs2-utils/sbin/fsck
--- fsck0.nilfs2.c 2011-06-14 11:03:49.000000000 -0700
+++ /root/nilfs/nilfs-utils.git/nilfs2-utils/sbin/fsck/fsck0.nilfs2.c 2011-06-14 11:01:34.000000000 -0700
@@ -172,10 +172,14 @@
static void read_block(int fd, __u64 blocknr, void *buf,
unsigned long size)
{
+ int num_read;
if (lseek64(fd, blocknr * blocksize, SEEK_SET) < 0 ||
- read(fd, buf, size) < size)
- die("cannot read block (blocknr = %llu): %s",
- (unsigned long long)blocknr, strerror(errno));
+ (num_read = read(fd, buf, size) < size)) {
+ fprintf(stderr, "Read size was: %d\tNum read: %d\tStrerror: %s\n",
+ size, num_read, strerror(errno));
+ die("cannot read block (blocknr = %llu)",
+ (unsigned long long)blocknr);
+ }
}
static inline __u64 segment_start_blocknr(unsigned long segnum)
and I got this as output:
./fsck0.nilfs2 -f -v /dev/sda2
Super-block:
revision = 2.0
blocksize = 4096
write time = 2011-06-11 23:22:03
indicated log: blocknr = 1648528
segnum = 804, seq = 401758, cno=3250953
Unclean FS.
The latest log is lost. Trying rollback recovery..
......
Searching the latest checkpoint.
Read size was: 4096 Num read: 1 Strerror: Success
fsck0.nilfs2: cannot read block (blocknr = 2696911)
The mount error is:
$ mount -t nilfs2 /dev/sda2 /writable
Jun 14 10:52:13 _Lab kernel: NILFS warning: mounting unchecked fs
Jun 14 10:52:13 _Lab kernel: NILFS warning: Checksum error in segment payload
Jun 14 10:52:13 _Lab kernel: NILFS: error searching super root.
mount.nilfs2: Error while mounting /dev/sda2 on /writable: Invalid argument
Will it still be possible to recover the partition or is this error fatal? Thanks all.
Zahid
-----Original Message-----
From: Ryusuke Konishi [mailto:konishi.ryusuke@xxxxxxxxxxxxx]
Sent: Monday, June 13, 2011 4:52 PM
To: Zahid Chowdhury
Cc: dexen.devries@xxxxxxxxx; linux-nilfs@xxxxxxxxxxxxxxx
Subject: Re: mount & fsck of nilfs partition fail.
On Mon, 13 Jun 2011 16:28:19 -0700, Zahid Chowdhury wrote:
> Hello Dexen/Ryusuke,
> Thanks both for your help. I tried this:
> [quadcore:~/nilfs/nilfs-utils.git/nilfs2-utils] git fetch
> http://git.nilfs.org/nilfs2-utils-devel.git fsck0:fsck0
> fatal: Refusing to fetch into current branch
> [quadcore:~/nilfs/nilfs-utils.git/nilfs2-utils] git checkout fsck0
> Already on "fsck0"
> I also tried from scratch with your commands below (not co, but checkout) -
> there were no changes to the file with diff:
> nilfs2-utils-devel/sbin/fsck/fsck0.nilfs2.c
Sorry, the fsck0 branch was not propery updated.
I just fixed the problem in the git repo.
Regards,
Ryusuke Konishi
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