From Fedora Project Wiki

btrfs by default

Date 2020-07-08
Time all day

Website QA/Test Days
IRC #fedora-test-day (webirc)
Mailing list test


Can't make the date?
If you come to this page before or after the test day is completed, your testing is still valuable, and you can use the information on this page to test, file any bugs you find at Bugzilla, and add your results to the results section. If this page is more than a month old when you arrive here, please check the current schedule and see if a similar but more recent Test Day is planned or has already happened.

What to test?[edit]

This Test Day will focus on Btrfs By Default - a proposed Change for Fedora 33 that would make btrfs the default file system. We will be testing using images patched with the proposed Change.

Who's available[edit]

The following cast of characters will be available testing, workarounds, bug fixes, and general discussion:

You can chat with us on IRC. See the infobox on top of the page to learn the right IRC channel.

Prerequisite for Test Day[edit]

How to test?[edit]

Visit the results page and click on the column title links to see the tests that need to be run: most column titles are links to a specific test case. Follow the instructions there, then enter your results by clicking the Enter result button for the test.

The test images for this Test Day are patched to use btrfs by default, so when running the install test cases, you can just install as usual without doing anything special for partitioning and the installed system should use btrfs. You can check this with mount after logging into the installed system, if you like.

Please also try to experiment and explore and perform tasks not mentioned in any of the pre-defined test cases.

Reporting bugs[edit]

All bugs should be reported into Bugzilla, in most cases against the anaconda component. If you are unsure about exactly how to file the report or what other information to include, just ask us on IRC (see instructions above).

Test Results[edit]

Initial[edit]

User Profile Install to Previous KVM References
FlexibleToast KVM Proxmox and oVirt
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Schykle
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Schykle x86_64
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alciregi KVM, x86_64, bios
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alexfinkel
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[1]
  1. The /boot partition is still using ext4.
archmunky KVM, UEFI
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bcgates KVM
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carlwgeorge KVM, x86_64, gnome-boxes
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cmurf KVM
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decathorpe KVM
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devil24g KVM
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gilbus KVM
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ifel KVM
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[1]
  1. Host: Ryzen 5 1600, 48G, 1 Gbit NIC, Ubuntu 18.04.4 LTS, qemu-kvm 1:2.12+dfsg-0~18.04~ppa0. Storage: Synology DS918+, 4x4T Seagate IronWolf in RAID5, 2Gbit bond connection, BTRFS. Guest: 2 Cores, 4GB, UEFI, iSCSI Thin provisioned volume from the storage. Installation took 13 minutes (from "Install to Hard Drive" to "Complete!")
ifel x86_64
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[1]
  1. Lenovo ThinkPad X1 Carbon 3rd, model 20BTS0Y500; Installation took 8 minutes (from "Install to Hard Drive" to "Complete!")
igaldino KVM
Pass pass
jskladan KVM
Pass pass
kanderson KVM
Pass pass
[1]
  1. Installed with Fedora-Everything-netinst-x86_64-Rawhide-20200707.n.0.iso and chose the Workstation package group. Use a custom partition, chose btrfs, and selected to create the default partitions and completed installation.
kartikay1506
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kparal virt-manager
Pass pass
[1]
  1. After seeing lruzicka's comment, I measured installation times for 0707 Workstation (lvm+ext4) and testday 0708 Workstation btrfs images. The installation was long (almost 9 minutes) in both cases. So btrfs doesn't cause any slowdown here. The long times are probably caused by using a debug kernel.
lruzicka KVM, x86_64, bios based
Pass pass
[1]
  1. The installation took longer than I am normally used to.
mcatanzaro KVM
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mhoungbo Virtual Machine Manager 2.2.1
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mzumquadrat KVM
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nasirhm KVM/QEMU x86_64 on Lenovo Thinkpad X1 Carbon
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ondra05 VirtualBox
Pass pass
[1]
  1. Custom partitioning: 600 MiB EFI, 23.4 GiB BtrFS, / and /home subvols
salimma Btrfs, both without encryption and with encryption
Pass pass
[1]
  1. with encryption, two LUKS volumes end up being created (one for swap and one for btrfs). this is transparent as long as the passphrase matches but otherwise makes for an annoying UX -- but should be temporary as the swap-on-zram Change should be landing soon.
salimma Btrfs, no encryption
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sumantrom KVM
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yang Install to Previous KVM
Pass pass
yanqiyu A old HP laptop(HDD), and KVM on SSD
Pass pass
[1]
  1. To add: did a force Compress, all worked fine.

Release-blocking (x86_64)[edit]

User Profile Initial setup Startup Reboot Unmount System Logging Update CLI Package Install/Remove Service Start Selinux Service Manupluation References
FlexibleToast KVM Proxmox and oVirt
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[1]
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Warning warn
[2]
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  1. Initial-setup on install with encryption enabled briefly hung after password was chosen. Before I could click the "wait" button it had already completed.
  2. Both installations had a similar error. oVirt encryption install: kernel: raid6: using avx2x2 recovery algorithm Proxmox install: kernel: raid6: using intx1 recovery algorithm
Iolo x86_64
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[1]
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[2]
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  1. Thinkpad X220, Workstation image, UEFI, LUKS2, Gnome Xorg, Kingston SV300S37A240G SSD; I customized partitioning slightly: 600 MiB /boot/efi (vfat), 1 GiB /boot (xfs), all available space to / (btrfs).
  2. Grep does produce output, but it does not appear to be an error, but a simple notification: heinä 08 21:23:31 localhost.localdomain kernel: raid6: using ssse3x2 recovery algorithm
alciregi KVM, x86_64, bios
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alexfinkel
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[1]
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  1. One line of output from the grep which appears to be informational: Jul 08 18:07:37 localhost.localdomain kernel: raid6: using ssse3x2 recovery algorithm
archmunky KVM, UEFI
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[1]
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[2]
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[3]
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  1. First reboot appeared to hang requiring hard reboot. Volume was marked as dirty but the journal was recovered successfully.
  2. cli update succeed. should consider dnf addon to automatically create snapshots before dnf up
  3. WARNING: possible circular locking dependency detected...
        • DEADLOCK ***....
    Jul 08 23:04:55 fed-btrfs kernel: 3 locks held by systemd-journal/492: Jul 08 23:04:55 fed-btrfs kernel: #0: ffffa0de7b1ec238 (&mm->mmap_lock#2){++++}-{3:3}, at: do_user_addr_fault+0x12e/0x4b0 Jul 08 23:04:55 fed-btrfs kernel: #1: ffffa0de70fbb598 (sb_pagefaults){.+.+}-{0:0}, at: btrfs_page_mkwrite+0x59/0x560 [btrfs] Jul 08 23:04:55 fed-btrfs kernel: #2: ffffa0de70fbb6a8 (sb_internal){.+.+}-{0:0}, at: start_transaction+0x3f8/0x500 [btrfs]
bcgates KVM
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Warning warn
[1]
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  1. I got this: "Jul 08 09:55:15 localhost.localdomain kernel: raid6: using ssse3x2 recovery algorithm" but I don't think this is an error.
bryanquigley HP Chromebook 11 G4 running Coreboot, 16 GB eMMC
Pass pass
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[1]
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  1. got raid6: using message like others - don't believe it's a bug
bryanquigley HP Chromebook 11 G4 running mrchromebox.tech coreboot - EUFI, 16 GB eMMC
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chrimage Lenovo Ideapad Flex 5, AMD Ryzen 4500U
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christian VirtualBox
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cmurf mbp82,hpspectre
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coremodule Raspberry Pi 3B+ Fedora-Workstation-Rawhide-20200706-btrfs.raw.xz
Fail fail
[1]
  1. RHBZ #1855522
dcavalca VMware x86_64 bios
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decathorpe KVM
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[1]
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  1. mcelog.service failed, but I think this is normal in KVM
devil24g KVM
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gamma VBox
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Warning warn
[1]
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  1. Default install with locale de, nothing else changed. on executing 'sudo journalctl -b | grep -E 'dirty bit|data may be corrupt|recovery|unmounted|recovering i get the message: localohst.localdomain kernel: raid6: using avx2x2 recovery algorithm
gilbus KVM
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ifel KVM
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Warning warn
[1]
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Warning warn
[2]
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  1. Testcase_base_reboot_unmount: Jul 08 09:02:13 localhost.localdomain kernel: raid6: using avx2x2 recovery algorithm After reboot: Jul 08 09:24:53 localhost.localdomain kernel: raid6: using avx2x2 recovery algorithm
  2. ● mcelog.service loaded failed failed Machine Check Exception Logging Daemon -- Logs begin at Wed 2020-07-08 09:02:13 PDT, end at Wed 2020-07-08 09:43:13 PDT. -- Jul 08 09:25:00 localhost.localdomain systemd[1]: Started Machine Check Exception Logging Daemon. Jul 08 09:25:00 localhost.localdomain mcelog[598]: mcelog: ERROR: AMD Processor family 23: mcelog does not support this processor. Please use the edac_mce_amd module instead. Jul 08 09:25:00 localhost.localdomain mcelog[598]: CPU is unsupported Jul 08 09:25:00 localhost.localdomain systemd[1]: mcelog.service: Main process exited, code=exited, status=1/FAILURE Jul 08 09:25:00 localhost.localdomain systemd[1]: mcelog.service: Failed with result 'exit-code'.
ifel x86_64
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[1]
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  1. Testcase_base_reboot_unmount: Jul 08 09:14:30 localhost.localdomain kernel: raid6: using avx2x2 recovery algorithm After reboot: Jul 08 09:20:30 localhost.localdomain kernel: raid6: using avx2x2 recovery algorithm
igaldino KVM
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[1]
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  1. $ sudo journalctl -b | grep -E 'dirty bit|data may be corrupt|recovery|unmounted|recovering' jul 09 12:17:00 localhost.localdomain kernel: raid6: using avx2x2 recovery algorithm
jskladan KVM
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kanderson KVM
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kartikay1506
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kparal virt-manager
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[1]
  1. kernel: raid6: using avx2x2 recovery algorithm
lruzicka KVM, x86_64, bios based
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mcatanzaro KVM
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[1]
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  1. I only tested rebooting the installed system, didn't check for errors after rebooting the installer. The grep line is going to need to be adjusted because there is now a false-positive: Jul 08 14:05:26 localhost.localdomain kernel: raid6: using avx2x2 recovery algorithm
mzumquadrat KVM
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nasirhm KVM/QEMU x86_64 on Lenovo Thinkpad X1 Carbon
Pass pass
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Warning warn
[1]
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[2]
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  1. Jul 09 23:22:38 localhost.localdomain kernel: raid6: using avx2x2 recovery algorithm
  2. Tested with i3wm and sway
nielsenb Compaq 8510w Intel T9300 AMD RV630 BIOS
Pass pass
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Warning warn
[1]
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  1. Always shows "raid6: using ssse3x2 recovery algorithm"
pwhalen KVM, AArch64
Pass pass
[1]
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salimma KVM, x86_64, LUKS
Pass pass
[1]
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[2]
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  1. New user created with sudo access. The UX is weird (asking for online accounts before asking for the user name) but that's outside the scope of this test day.
  2. Jul 08 15:05:14 localhost.localdomain kernel: raid6: using avx2x2 recovery algorithm but this is unrelated
steelcowboy HP EliteBook 735 G6, AMD Ryzen Pro 3700U
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sumantrom Baremetal lenovo T580 with Test Day Iso
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Warning warn
Fail fail
[1]
Pass pass
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  1. [sumantro93@localhost ~]$ sudo journalctl -b | grep -E 'dirty bit|data may be corrupt|recovery|unmounted|recovering' [sudo] password for sumantro93: Jul 08 09:30:02 localhost.localdomain kernel: raid6: using avx2x2 recovery algorithm
sumantrom KVM
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tflink x86_64 hardware
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thynkon KVM, x86_64
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thynkon KVM, x86_64, KDE Plasma
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yang KVM
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yanqiyu X86_64,KVM and baremetal
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[1]
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[2]
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  1. I am making /boot as a subvolume
  2. Everything worked fine!
yozaam VirtualBox Ram:4GB installed Fedora-Workstation-Live-x86_64-20200708-btrfsdefault.iso dynamic Virtual Disk Image: 12GB Running & installed on a external hard drive
Pass pass
[1]
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[2]
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  1. Very slow and took more than 30 minutes for the "installing software" stage while installing to hard drive, Have installed multiple workstation iso's in the past, they do not take so much time ( maybe because it is a external hdd (exFAT) / maybe because it is a dynamic .vdi drive
  2. No mount error but recovery raid6 same as user:gamma above Jul 08 17:04:35 localhost.localdomain kernel: raid6: using avx2x2 recovery algorithm I wonder if this is vbox thing?
zbyszek AMD64 KVM UEFI sd-boot, continually upgraded since F31
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Desktop[edit]

User Profile Desktop Browser Desktop Login Audio Basic Desktop Panel Basic Desktop Automount Workstation core Apps Update graphical Virtual Printer Update notif Error Checks References
FlexibleToast KVM Proxmox and oVirt
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Schykle x86_64 (XPS 9370, Inspiron 15 7579)
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alciregi KVM, x86_64, bios
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bcgates KVM
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chrimage Lenovo Ideapad Flex 5, AMD Ryzen 4500U
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christian VirtualBox
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cmurf mbp82,hpspectre
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dcavalca VMware x86_64 bios
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decathorpe KVM
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devil24g KVM
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gamma VBox
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ifel KVM
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ifel x86_64
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kanderson KVM
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kparal virt-manager
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lruzicka KVM, x86_64, bios based
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mberry
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[1]
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[2]
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  1. Works as expected.
  2. Sound is working as expected.
mberry x86_64
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[1]
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  1. Automount of drives works as expected.
mzumquadrat KVM
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[1]
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Warning warn
[2]
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  1. Only tested with USB since my Notebook does not have a CD drive
  2. Not able to test since i updated the system via CLI in an earlier step
nasirhm KVM/QEMU x86_64 on Lenovo Thinkpad X1 Carbon
Pass pass
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nielsenb Compaq 8510w Intel T9300 AMD RV630 BIOS
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steelcowboy HP EliteBook 735 G6, AMD Ryzen Pro 3700U
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Fail fail
[1]
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  1. I think Gutenprint should support my Epson Stylus NX625, but it couldn't find the driver in the software center and failed to add
sumantrom KVM
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tflink x86_64 hardware
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thynkon KVM, x86_64
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thynkon KVM, x86_64, KDE Plasma
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yang KVM
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yanqiyu X86_64,KVM and baremetal
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Modularity[edit]

User Profile Module List Enable/disable module Install Module Update without repos Update Module References
FlexibleToast KVM Proxmox and oVirt
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bcgates KVM
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Warning warn
[1]
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  1. I had to install ruby using "sudo dnf module install ruby/default"
christian VirtualBox
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[1]
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  1. tested with sudo dnf module install ruby:master/default
lruzicka KVM, x86_64, bios based
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[1]
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  1. The dnf works ok, but some modules have broken dependencies and cannot be installed (avocado).
mzumquadrat KVM
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[1]
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[2]
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  1. Tested with cri-o
  2. Used cri-o with default profile
sumantrom KVM + testdayiso without luks,guided automatic partioning
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[1]
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[2]
  1. Enabled and disabled nodejs:14
  2. Works fine tested with mariadb:10.4
sumantrom baremetal t580
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yang KVM
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Guided storage configuration[edit]

User Profile Guided Empty Guided Delete All Guided Multi Select Guided Delete Partial Guided free space Guided encrypted Guided Multi Empty All Guided Shrink References
FlexibleToast KVM Proxmox and oVirt
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FlexibleToast KVM oVirt
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bryanquigley HP Chromebook 11 G4 running mrchromebox.tech coreboot - EUFI, 16 GB eMMC
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christian VirtualBox
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kartikay1506
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kartikay1506 Virtualbox
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kparal virt-manager
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Fail fail
[1]
Fail fail
[2]
  1. RHBZ #1855174 Crash in certain situations. Also, do we want to set up btrfs raid automatically, do we trust it enough?
  2. RHBZ #1855292
lruzicka KVM, x86_64, bios based
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mzumquadrat KVM
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nielsenb Compaq 8510w Intel T9300 AMD RV630 BIOS
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steelcowboy HP EliteBook 735 G6, AMD Ryzen Pro 3700U
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Exploratory[edit]

User Profile Experimental References
Schykle x86_64 (XPS 9370, Inspiron 15 7579)
Pass pass
[1]
  1. Successfully ran scrubs, defragments (including enabling/disabling compression on the filesystem as well as changing compression types), and balance
decathorpe KVM
Pass pass
[1]
  1. btrfs balance, scrub, defragment, and subvolume/snapshot create, list, and delete worked out of the box.
devil24g KVM
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[1]
  1. [Wed Jul 8 15:04:19 2020] ====================================================== [Wed Jul 8 15:04:19 2020] WARNING: possible circular locking dependency detected [Wed Jul 8 15:04:19 2020] 5.8.0-0.rc3.20200701git7c30b859a947.1.fc33.x86_64 #1 Not tainted [Wed Jul 8 15:04:19 2020] ------------------------------------------------------ [Wed Jul 8 15:04:19 2020] systemd-journal/525 is trying to acquire lock: [Wed Jul 8 15:04:19 2020] ffffa051f4a14db0 (&fs_info->reloc_mutex){+.+.}-{3:3}, at: btrfs_record_root_in_trans+0x44/0x70 [btrfs] [Wed Jul 8 15:04:19 2020] but task is already holding lock: [Wed Jul 8 15:04:19 2020] ffffa051f2c6f598 (sb_pagefaults){.+.+}-{0:0}, at: btrfs_page_mkwrite+0x59/0x560 [btrfs]
psimonyi KVM/QEMU
Fail fail
[1]
  1. RHBZ #1856048 blivet-gui can create subvolumes, but can't display existing ones
pwhalen KVM, AArch64 Host
Pass pass
[1]
sumantrom baremetal t580
Fail fail
[1]
  1. Tried dual booting, first installing the Btrfs test day iso and then installed a regular F32 and grub stopped showing the btrfs F33 after install of regular F32. Both the images were written to a flash drive by FMW