You are not logged in.
- Topics: Active | Unanswered
#1 2025-11-26 18:14:28
- ua4000
- Member
- Registered: 2015-10-14
- Posts: 554
[SOLVED] PCManFM-Qt : copy instead of move inside same filesystem
After last update I noticed a new bug in PCManFM-Qt while moving big files, because it took so long:
PCManFM-Qt does not move, but instead copy the data on the disk inside the same file-system.
Bug behavior:
- occurs on ext4 and btrfs
- not with "mv" command, only with PCManFM-Qt
- not with single files, but with folders which have with files
- occurs with drag+drop, and CTRL-X /CTRL-V
I suspect libfm-qt or pcmanfm-qt ?
Does anyone have this issue too ?
Updates:
Package (58) Old Version New Version Net Change Download Size
core/archlinux-keyring 20251027-3 20251116-1 0.00 MiB 1.19 MiB
extra/at-spi2-core 2.58.1-1 2.58.1-2 -0.01 MiB 0.56 MiB
extra/breeze-icons 6.20.0-1 82.70 MiB 7.89 MiB
core/ca-certificates-mozilla 3.117-1 3.118.1-1 -0.02 MiB 0.39 MiB
extra/chromium 142.0.7444.134-1 142.0.7444.175-1 0.01 MiB 117.11 MiB
extra/cmake 4.1.2-1 4.2.0-1 5.27 MiB 13.77 MiB
extra/dhcpcd 10.2.4-2 10.3.0-1 0.00 MiB 0.21 MiB
core/e2fsprogs 1.47.3-1 1.47.3-2 0.00 MiB 1.24 MiB
extra/ffmpeg 2:8.0-3 2:8.0.1-1 -0.02 MiB 14.08 MiB
extra/firefox 145.0-1 145.0.1-1 -0.26 MiB 78.34 MiB
extra/freeglut 3.6.0-3 3.8.0-1 0.07 MiB 0.18 MiB
extra/git 2.51.2-2 2.52.0-1 0.37 MiB 6.82 MiB
core/glib2 2.86.1-1 2.86.2-1 0.00 MiB 4.93 MiB
extra/gtk-update-icon-cache 1:4.20.2-3 1:4.20.3-1 0.00 MiB 0.02 MiB
extra/gtk4 1:4.20.2-3 1:4.20.3-1 0.18 MiB 8.91 MiB
extra/kwindowsystem 6.19.0-1 6.20.0-1 0.00 MiB 0.23 MiB
extra/layer-shell-qt 6.5.2-1 6.5.3-1 0.00 MiB 0.03 MiB
extra/libadwaita 1:1.8.1-1 1:1.8.2-1 0.03 MiB 0.73 MiB
core/libarchive 3.8.2-1 3.8.3-1 0.00 MiB 0.55 MiB
extra/libblockdev-smart 3.4.0-1 0.12 MiB 0.02 MiB
extra/libdrm 2.4.128-1 2.4.129-1 0.01 MiB 0.34 MiB
extra/libfm-qt 2.2.0-4 2.3.0-1 0.04 MiB 0.67 MiB
extra/libkscreen 6.5.2-1 6.5.3-1 0.00 MiB 0.28 MiB
extra/liblxqt 2.2.0-1 2.3.0-1 0.01 MiB 0.16 MiB
extra/libnm 1.54.1-1 1.54.2-1 0.01 MiB 0.88 MiB
extra/libqtxdg 4.2.0-5 4.3.0-2 0.00 MiB 0.17 MiB
extra/libreoffice-still 25.2.7-2 25.2.7-3 0.00 MiB 143.41 MiB
extra/libtommath 1.3.0-1 1.3.0-2 0.00 MiB 0.05 MiB
core/libxml2 2.15.1-3 2.15.1-4 0.00 MiB 0.75 MiB
core/linux 6.17.7.arch1-2 6.17.8.arch1-1 0.04 MiB 142.65 MiB
extra/llvm-libs 21.1.5-1 21.1.6-1 0.00 MiB 38.45 MiB
extra/luajit 2.1.1762795099-1 2.1.1763318511+e17ee83-1 0.00 MiB 0.32 MiB
extra/lximage-qt 2.2.0-2 2.3.0-1 0.04 MiB 0.26 MiB
extra/lxqt-build-tools 2.2.1-1 2.3.0-1 0.00 MiB 0.02 MiB
extra/lxqt-config 2.2.0-1 2.3.0-1 0.07 MiB 0.53 MiB
extra/lxqt-globalkeys 2.2.0-1 2.3.0-1 0.02 MiB 0.25 MiB
extra/lxqt-menu-data 2.2.0-1 2.3.0-1 0.01 MiB 0.05 MiB
extra/lxqt-notificationd 2.2.0-1 2.3.0-1 0.02 MiB 0.10 MiB
extra/lxqt-panel 2.2.2-1 2.3.0-1 0.32 MiB 1.25 MiB
extra/lxqt-qtplugin 2.2.0-4 2.3.0-1 0.00 MiB 0.04 MiB
extra/lxqt-runner 2.2.0-1 2.3.0-1 0.02 MiB 0.23 MiB
extra/lxqt-session 2.2.0-1 2.3.0-2 0.03 MiB 0.21 MiB
extra/lxqt-themes 2.2.0-1 2.3.0-1 0.13 MiB 25.99 MiB
extra/networkmanager 1.54.1-1 1.54.2-1 0.01 MiB 3.63 MiB
core/nss 3.117-1 3.118.1-1 0.04 MiB 1.64 MiB
extra/obconf-qt 0.16.5-2 0.16.6-1 0.04 MiB 0.15 MiB
extra/openexr 3.4.3-1 3.4.4-1 -0.50 MiB 1.03 MiB
extra/pavucontrol-qt 2.2.0-1 2.3.0-1 0.01 MiB 0.16 MiB
extra/pcmanfm-qt 2.2.0-1 2.3.0-2 0.07 MiB 0.54 MiB
extra/poppler 25.10.0-1 25.11.0-1 0.00 MiB 1.66 MiB
extra/poppler-glib 25.10.0-1 25.11.0-1 0.00 MiB 0.35 MiB
extra/qterminal 2.2.1-1 2.3.0-1 0.06 MiB 0.30 MiB
extra/qtermwidget 2.2.0-1 2.3.0-1 0.02 MiB 0.25 MiB
extra/qtxdg-tools 4.2.0-1 4.3.0-1 0.01 MiB 0.03 MiB
extra/solid 6.19.0-1 6.20.0-1 -0.02 MiB 0.41 MiB
extra/thunderbird 144.0.1-4 145.0-1 2.02 MiB 73.94 MiB
extra/udisks2 2.10.2-1 2.11.0-1 0.43 MiB 0.76 MiB
extra/xdg-desktop-portal-lxqt 1.2.0-1 1.3.0-2 0.00 MiB 0.05 MiBtest case,
- a "folder" with a 2GB "bigfile" inside, the folder is moved from folder a to b on the same file-system.
observation of inodes, which should not change on the file at least:
mv : good
# ls -i .; ls -i ./folder
# before
261 folder
262 bigfile
# after "mv"
261 folder
262 bigfilePCManFM : fail
# ls -i .; ls -i ./folder
# before
261 folder
262 bigfile
# after "PCManFM-Qt move"
263 folder
264 bigfileThanks !
Last edited by ua4000 (2025-11-28 17:25:32)
Offline
#2 2025-11-26 21:01:40
- seth
- Member
- From: Won't reply 2 private help req
- Registered: 2012-09-03
- Posts: 75,085
Re: [SOLVED] PCManFM-Qt : copy instead of move inside same filesystem
https://github.com/lxqt/libfm-qt/commit … fd98c8326b looks eerily reelvant - you could try to build libfm-qt w/ it reverted.
nb. there's also a rebuild for Qt 6.10.1 in testing so iff reverting the above commit fixes it you should verify that re-introducing it re-introduces the bug as well.
Offline
#3 2025-11-27 16:49:52
- ua4000
- Member
- Registered: 2015-10-14
- Posts: 554
Re: [SOLVED] PCManFM-Qt : copy instead of move inside same filesystem
Many thanks seth!
You found the right spot, the linked commit has an extra condition missing in the code.
The issue got now a bug label: https://github.com/lxqt/libfm-qt/issues/1085
Offline
#4 2025-11-27 19:56:03
- seth
- Member
- From: Won't reply 2 private help req
- Registered: 2012-09-03
- Posts: 75,085
Re: [SOLVED] PCManFM-Qt : copy instead of move inside same filesystem
\o/
Please always remember to mark resolved threads by editing your initial posts subject - so others will know that there's no task left, but maybe a solution to find.
Thanks.
(You might have to shorten the present subject a bit)
Offline
#5 2025-11-28 17:32:58
- ua4000
- Member
- Registered: 2015-10-14
- Posts: 554
Re: [SOLVED] PCManFM-Qt : copy instead of move inside same filesystem
yes,yes, I know :-)
I wanted to take my time to perform a rebuild and do a real test with the patch today.
But I was too slow, libfm-qt-2.3.1 was released fast and contains the patch, and reached already the extra repo and solved the issue 100% :-)
Offline