Marcin

I did a few test on 5GB .vma files. If you add `-3 -B 2147483648 ` options to xdelta3 you should get noticeably smaller diff copies. Disadvantage is more memory...

Change shebang to ```#!/usr/bin/python2```

On Gentoo it is configurable, admin can choose which implementation of python is run by symlink /usr/bin/python.

> @marcin-github Would it be possible for you to try this out? Something is not going well and reliable. After reboot all device fses mounted but one. I can't mount...

According to talk on irc: LIBBLKID_DEBUG=all blkid -p /dev/vg-ZA1C3NKP/burp ``` 11472: libblkid: INIT: library debug mask: 0xffff 11472: libblkid: INIT: library version: 2.39.3 [04-Dec-2023] Available "LIBBLKID_DEBUG=[,...]|" debug masks: all [0x00ffff]...

@tasleson I tried attached blkid, no change: ``` 9745: libblkid: INIT: library debug mask: 0xffff 9745: libblkid: INIT: library version: 2.41.0 [24-Jan-2024] Available "LIBBLKID_DEBUG=[,...]|" debug masks: all [0x00ffff] : info...

Another debug output of old fs: ``` bcachefs show-super /dev/vg-ogolny/rrd Device: (unknown device) External UUID: fdbff015-b9bd-41db-81dc-18e4780a9ef5 Internal UUID: 4f1069e4-8b8c-4827-a474-86b94dd5f224 Magic number: c68573f6-4e1a-45ca-8265-f57f48ba6d81 Device index: 0 Label: rrd Version: 1.6: btree_subvolume_children...

Still something is going wrong: ``` bcachefs fsck -n /dev/vg-ZA1C3NKP/burp mounting version 1.3: rebalance_work opts=metadata_replicas=2,compression=lz4,background_compression=zstd:6,degraded,journal_reclaim_delay=1000,fsck,fix_errors=no,nochanges,nodirect_io recovering from clean shutdown, journal seq 23255615 journal read done, replaying entries 23255615-23255615 alloc_read... done...

``` bcachefs: libbcachefs/errcode.c:27: bch2_err_str: Assertion `!(err >= BCH_ERR_MAX)' failed. Aborted (core dumped) ``` (different line number because I updated -tools)

fsck on other fs throws: ``` bcachefs: libbcachefs/errcode.c:43: __bch2_err_matches: Assertion `!(err >= BCH_ERR_MAX)' failed. ```