MX-21 Release Candidate 1 now available for testing purposes

October 5, 2021

MX-21 series RC1 iso images for testing
–direct downloads:

Xfce Desktop

32 bit Xfce with debian standard 5.10 kernel sha256_checksum md5_checksum signature

64 bit Xfce with debian standard 5.10 kernel sha256_checksum md5_checksum signature

KDE/Plasma Desktop

64 bit KDE/plasma with Debian standard 5.10 kernel sha256_checksum md5_checksum signature


32 bit Fluxbox with Debian standard 5.10 kernel sha256_checksum md5_checksum signature

64 bit Fluxbox with Debian standard 5.10 kernel sha256_checksum md5_checksum signature

MX-21 RC1 is now available for testing. MX-21 is built from debian-bullseye and MX repositories.

Things that are new in MX-21 RC1:

New and updated applications.
New installer partition selection area, including some lvm support if lvm volume exists already
New UEFI live system boot menus. Now you can select your live boot options (persistence, etc…) from the boot menu and submenus rather than using the previous console menus.
Xfce 4.16, Plasma 5.20, fluxbox 1.3.7 with mx-fluxbox 3.0 configs
User password (sudo) for admin tasks by default. You can switch this in mx-tweak->Other tab.
Many many bugfixes since beta2.

Changes with RC1

All releases: updated installer and live system to latest versions. Many translation updates. The live menus now include special features like rollback options for remasters gone wrong. In addition, we added the mesa vulkan drivers to the default package set. New “mx-comfort” themes are also in use. Better support for some realtek wifi parts. Debian security repo enabled by default. gtk3-nocsd removed from default feature set.

Xfce isos: Updated Xfce packages to latest bug fix releases. Added thunar samba shares plugin (accessible via a folder’s properties dialog in thunar). Updated docklike plugin. Add “thick” variants for xfwm4 mx-comfort themes.

KDE/plasma iso: fix for dolphin file manager crash issues when “Save desktop changes” was utilized during install. various improvements to default settings. New mx-comfort color schemes as part of the MX global themes.

Fluxbox isos: updates to many of the mxfb-accessories scripts, improved localization, general configuration changes. Auto updating menus on package installation. Captions on by default on desktop, and additional pre-configured panel setups. New mx-comfort fluxbox styles.

Feedback for testing should be via forum post:

MX-21_rc1 feedback thread (Xfce)

MX-21_KDE_rc1 feedback thread

MX-21_fluxbox_rc1 feedback thread

Be sure to include proper system data, including the output of quick-system-info.
If posting nvidia-installer (ddm-mx) issues, please post the contents of /var/log/ddm.log.
If posting remaster issues, please include the contents of /var/log/live/live-remaster.log
If posting installer issues, please include the contents of /var/log/minstall.log
If posting issues with MX-PackageInstaller “Popular Apps”, please post contents of /var/log/mxpi.log or /var/log/mxpi.log.old (whichever contains the log of your issue).

Thank you!

Dolphin Oracle (on behalf of the MX Dev Team)

43 thoughts on “MX-21 Release Candidate 1 now available for testing purposes”

  1. i just install beta 2 just few hours back, hehe do i need a fresh install or just some few command at terminal to get the RC1? TIA

  2. Poderia incluir o ( iommu junto ao grub ) pois em todas as versões do Grub tenho que editalo pois tenho Placa mãe GIGABYTE GA-970A-DS3P (rev. 1.0) rev. 2.x


  3. I don’t find ‘disk-manager’ in the new version, which prevents me from mounting the drive easily. The application that replaces it is?
    The desktop brightness can’t be adjusted by clicking the power icon on the panel, how should I adjust the brightness?
    ‘system-config-samba’ can’t be found either, how can I quickly set the samba user and password?

  4. I have installed mx 21 rc1, i have notice htop and conky manager RAM use not match properly, kindly resolve this issue.

    • The blue box is probably by design.
      Please report your system-locales problem on the forum; mostly the devs won’t see it here. Remember to include Quick System Info.

  5. Fluxbox version booting from USB stick looks good, in fact it’s probably the best implementation of it I’ve seen on any distro – well done :o)

    I don’t need to go this lightweight on any of my machines but I’d happily install it (and will) on some of the older ones before passing them on.

  6. Suspend in both 19 and 21 kde are flakey on my Sony viao i3 330m. System is super slow and takes a long time to suspend after lid is closed, sometimes dosnt even suspend especially in 21 kde.

    Sharing folders not as easy nor successful as mx19 xfce/kde (19 kde Samba woes so I upgraded to kde on xfce, perhaps do a kde spin off from your xfce as Samba utility works good, or perhaps it’s bugs in kde in its self)

  7. Those forum feedback links must be invisible since people post their feedback here rather than in the forum threads set up specifically for feedback. LOL

  8. does the Flux version include all the bloat(for me), Office etc by default… ?
    I remember someone here did unofficial “debloated” version.. hopefully it will case with this version too…


    • there are a lot of things left off the fluxbox iso. whether it still qualifies as bloat for you I can’t say, but things like thunderbird, libreoffice, and some other stuff is not present on the fluxbox iso.

  9. Shame, really – despite several contributions, suggestions, close inspection of BIOS settings, notably CSM, once again v21RC1 also fails to install at 95% complete with message to fix GRUB from .iso disc/MXTools on many of my machines, old & new, Intel & AMD, all video chips, etc. I reported this several months ago on the Forum. My previous trick of GRUB “re”-install from rebooted .iso followed by (third) .iso disc reboot and GRUB repair from MXTools now also fails. One commentator suggests that ‘re-install’ and ‘repair’ cannot work because the .iso disc does not recognise the uncompleted previous failed installation for what it is. One punter suggests using two machines, one to update the files (esp. on the .iso, re-burn with latest kernel) swap back to machine with 95% installed files and use GRUB Tools from this. All very convoluted.
    Reading some third party reviews of MX highlights rather more disgruntled putative users, esp. with the GRUB failure feature than anticipated or expected. Comments about the uncoordinated efforts of many contributors to the genre abound.
    Real shame – no good just recording claimed ‘SOLVED’ entries in the Forum. Just please fix this glaringly obvious shortcoming and the world will be at your feet…maybe.

  10. Just wondering if MXLinux use’s secure boot, I have persisted and tried installing it 3 times but it always fails, really disappointed. No I wont be turning it off in the bios as its part of my security setup.

    To the anonymous guy, some people don’t want to have to jump through hoops joining a forum just to ask a simple question…surely you have nothing better to do!

  11. Hello from Ukraine 🙂
    MX – the world’s best team and created the world’s best Debian for users)))
    Your MX Tools are great)))
    I look forward to LTS version)))

  12. hi all,
    when is the final release expected to be published?

    can i upgrade from the rc1 to the final easily or do i need a feesh reinstall?

    can you still boot with or without systemd as in ver. 19 ?

  13. Installed Fluxbox RC1 on Monday coming from beta2, kept my home directory using the installer cannot believe how straightforward it was. Booted into RC1 and everything was there ready to go from the previous install, just had to add my own favourite apps and all is good, stable and solid.

    Thanks for your hard work.

  14. I have a dual boot system, with Windows 10/MX Linux 19.4. Soon, Windows 10 will be upgraded to Windows 11 on my PC. Windows 11 requires secure boot to be on in the BIOS, but MX Linux does not support secure boot, and therefore the BIOS setting needs to be off. How will I be able to dual boot in the future?

  15. I red that it will be possible to disable the need of secure boot for win 11. So it might be nö problem. I hope. I don’t like secure boot.

  16. I am using the KDE version.

    Using sudo in terminal does not draw output any window. For example “sudo conky” will not display the conky window, but “conky” display it just fine.
    And this is true of everything else, and I really need to run the matlab installer as sudo otherwise it can’t install the program.

    Am I just missing something, like disabled drawing windows for sudo? or something silly like this…

  17. MX21 RC1 does not boot from live USB on either of my Mac Minis (64 GB 2018 I7, 16 GB 2012 I5). MX19.4 (July) and previous versions boot without problems. I have been running MX live for years on these devices.

  18. Hey, I have just one question do we have to reinstall this after the stable version of mxlinux21 will be released? Or we can just update it using terminal?

  19. Hallo, ich habe MX-21 RC-1 problemlos installiert. Mir ist aufgefallen, dass sich ein geöffnetes Fenster mit seiner 1. Zeile unter die Panel-Leiste (Habe ich waggerecht angeordnet) schieben lässt. Die obere Fensterleiste ist dann nicht mehr erkennbar. Nach einigem ausprobieren, habe ich die Lösung durch erneute Auswahl unter MX-Tweak (unter “Betrifft 1. Leiste”) durchgeführt. Hier scheint also irgendein Initialisierungsproblem vorzuliegen.


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