Re: rsync to ext2 filesystem issues

[Ramiro Aceves <ea1abz%gmail.com@localhost>]

Thanks so much for your comments regarding this subject.

I have fsck the ext2  filesystem using Linux and repeated the rsync.
Now rsync stopped into another file among the Mozilla firefox
directory that owns trillions of files.

I noticed that when I fixed the filesystem with  fsck under Linux it
output the following  "Invalid HTREE directory" message:

sep 06 11:47:53 debian-nuc8i7 systemd-fsck[1293]: /dev/sdb1: Invalid
HTREE directory inode 38723585
(/COPIA_NETBSD_8I7/home/ramiro/.mozilla/firefox/527cpmj0.default-default-2/storage/permanent/chrome/idb/3870112724rsegmnoittet-es.files)

Do you think it is  a bug in NetBSD ext2 filesystem implementation? I
am a total ignorant in this subject, just in case clue persons can
extract information from this finding.

Anyway, I have excluded from the rsync backup all the offending files
and it seems to finish just fine. All those files are not important
for my backup.

Not a fix, a workaround but if it works....

Regards.







El dom, 6 sept 2026 a las 0:26, beaker (<beaker%sdf.org@localhost>) escribió:
>
> Ramiro Aceves <ea1abz%gmail.com@localhost> wrote:
>
> > Hello,
> >
> > I have an external USB hard disk partitioned with ext2 filesystem
> > (/dev/sd0e mounted in /mnt/datos for file sharing between NetBSD and
> > Linux) and I have had recurrent problems when rsync-ing files from the
> > NetBSD  FFS filesystem to the EXT2 filesystem.
> >
> <snip
> >
> > After killing rsync commands I cannot umount sd0e partition. It normally
> > ends in having to fsck the partition in the next reboot (about 1 hour of
> > fsck)
> >
> > Why does it stop and stay for ever? Is it a problem with rsync command?
> > or is it a problem with ext2 filesystem?
>
> I don't have an answer for you other than to say I've also had system hangs
> when trying to rsync *from* an ext2 partition mounted on NetBSD.  I generally
> make use of the 'log' mount option so no long fscking needed.  I regularly
> run rsync from NetBSD (FFS) -> Linux (BTRFS) without issue.  In my case the
> ext2 filesystem is a common area for a dual-boot machine (NetBSD & Debian)
> so I just do the rsync with the ext2 mounted on Debian.
>
> I recall a past related thread regarding use of ext2 on NetBSD and I believe
> the advice was to create said ext2 filesystem using newfs_ext2fs(8) instead
> of from within Linux.  I see there is a fsck_ext2fs(8) which you might want
> to run to see if there's any issues with your setup.
>
> -B