Super Grub2 Disk

    Rescatux 0.71-beta7 – Not a review

    Rescatux 0.71-beta7 – Not a review


    Rescatux 0.71-beta7 ISO (672 MB)
    (Torrent)MD5SUM: ee5efcc09e4d9011d8bd865f354dae84


    This last week I have been unable to sleep. Why? My friend adrian15 told me about him releasing another beta version of Rescatux. The last Rescatux beta was released on December 2017. That’s more than a year ago.

    He has been hyping me about all those new features that this iso is going to have for the past two months. And he has also bothered me with all the problems he had been finding along the way. He is very persistent because he has finally managed to work around most of them.

    So, the first thing I want to point out is that Rescatux, as you might know is usually based on Debian stable. Well, Rescatux 0.51b3 was based on Debian Jessie 8 and Rescatux 0.71 beta is based on Debian Buster 10 which happens not to be a Debian stable because it has not been released yet.

    Debian Buster 10 will be release as stable Debian in the next months

    But Debian Buster is frozen and it will be released as Debian stable in less than a year.

    Using Debian Buster 10 instead of Debian Jessie 8 as a base means that more recent hardware will be supported out of the box. And that’s great because I recently bought a HP250 G6 2SX60EA laptop and I want to test Rescatux on it. So that I can give adrian15 more work Ha Ha Ha !

    The other nice about this iso is the many ways it can be booted. Super Grub2 Disk which has an hybrid boot that supports i386-pc, ia32-efi and amd64-efi boots is from the same author. So you should not an expect an amd64 only disk and an i386 only disk but an hybrid one.

    And that’s what you get. Here there is a boot options summary table:

    Secure BootBIOS/EFI platformKernel ArchBoot?
    x64 EFI
    x64 EFI
    Seems not to work
    ia32 EFI
    Non tested
    ia32 EFI
    Non tested
    Secure BootBIOS/EFI platformKernel ArchBoot?
    x64 EFI
    x64 EFI
    ia32 EFI
    Non tested
    ia32 EFI
    Non tested
    Secure BootBIOS/EFI platformKernel ArchBoot?

    Have you noticed it? Yeah, that’s it. Now Rescatux 0.71 beta 7 gets Secure Boot support from Debian Buster. And it’s Secure Boot which works with Microsoft Secure Boot enabled machines. So we are not going to need to tweak our UEFI firmware to be able to boot Rescatux. Yay!

    What more about boot? Yes, there is this liveid thing that adrian15 made up so that some hp laptops that come with live-build installations do not confuse Rescatux boot. That’s supposed to be a new standard for live cds but according to what he has told me not many distros are willing to adopt it.

    It’s UUID for live cds he has told me. It should be make easier the work of Yumi, Rufus, Easy2Boot and similar tools if combined with loopback.cfg according to him. Go figure.

    Hands on – Boot

    Enough talking. Let’s boot the iso and see what we get at.

    I’m getting an isolinux menu with a countdown when booted in BIOS mode. Look at that! The poor tux penguin has beta 7 all of over his face! XD XD XD . This needs to be fixed in the next stable release. #FreeTuxFromBeta7

    Rescatux BIOS boot menu #FreeTuxFromBeta7

    However when I boot in UEFI mode I am not getting a countdown and the default boot entry cannot be seen because it’s white and the background is also white. I remember seeing this same problem in Rescatux 0.51b3. This has not been definitively been fixed.

    Rescatux UEFI boot menu

    Rescatux Desktop

    What about having a laptop with a semi broken screen? I had to install open-vm-tools-desktop package on my virtualbox instance but I finally managed to make it work with two screens. That way I can show it to you without using a blurry mobile phone photo 😉 . Guess what? Rescatux gets you covered because you can start the monitor settings when monitors are horizontally stretched. The dialogs concerning monitor settings are centered among the two monitors.

    So that means that I can finally recover my old broken screen laptop. I just disable my laptop screen and leave enabled the external screen. And there’s no need for me to learn hotkeys and commands to run those screen setup screens manually.

    Rescatux Startup Wizard centered between two screens
    Change Monitor Settings centered between two screens

    By the way this monitor settings dialog is a part of the new Rescatux startup wizard.

    Rescapp was already a wizard for your rescue tasks but adrian15 managed to add this new wizard for the live cd itself. These new Rescatux startup wizard feature are quite neat so that you can customize your Rescatux session.

    • Change monitor settings
    • Change language/locale
    • Change keyboard layout
    • Turn off VNC Server or change its password

    VNC Server. That is an interesting feature for youtubers and maybe cloud users.

    Now Rescatux starts up a VNC server at startup so that you can access it from the network. I have asked adrian15 on how to setup an static ip from boot parametres as I had seen in the past in GRML but he has told me it is not implemented yet. ‘You have to rely on dhcp or setup the static ip manually.’ he has told me. Look at this, we are ready to run Rescapp. Finally! This was getting bored because Rescapp is what matters in this distro.

    Is this Rescapp?

    What do we have here? This is Rescapp. But this is not the Rescapp that I know of with all those options. Let’s read the windows title:

    Rescapp Self-Test

    Rescapp checks itself thanks to self-test new functionality

    I first thought this screen was meant for people to know if they had boot in Secure Boot or in UEFI mode. That’s useful because when playing with UEFI and BIOS boot I have learnt that every OS in the computer needs to be either boot in UEFI mode or in BIOS mode. Not the two of them mixed.

    Later on, while discussing with adrian15 about this option he has told me about him converting rescapp and chntpw (what makes possible to reset Microsoft Windows passwords) into proper Debian packages. As Rescapp is available as an upstream package or as a Debian package it might appear in other distros without being able to show its full potential.

    So now when a distro lacks SELinux support you know. If the distro has not packaged the forked version of chntpw that Rescapp uses then you also know. But you are not forbidden of using Rescapp. Maybe SeLinux support (needed by RHEL, Fedora, Centos,…) is not used by your usual distro so it does not affect you.

    So Self-test not only helps you to diagnose if you have boot in the proper mode (UEFI or BIOS) but also if your live cd is lacking some of the Rescapp requirements.

    After you click on the Start Rescapp !!! button you finally get out beloved Rescapp.

    Our beloved Rescapp UI

    Rescapp not so updated and angry call

    I took a depth look into Rescapp for about long thirty minutes but I didn’t see anything relevant. This was confusing. I was expecting some Secure Boot options now that Rescatux could boot from Secure Boot machines. I was expecting him to fullfill all of the options embeded html documentation that I had complained to him when he released 0.51b3 version and I had to dig inside his rescapp scripts to understand them.

    I had to phone adrian15.

    He laughed at me. He was expecting my call. Too much work on putting up Rescatux up to date and adding all of those fancy wizards was his explanation. When I was going to complain to him about the awful design of the beta7 text in front of the now sad penguin he told me: Pull requests are welcome and he hung up the phone on me!

    Super Grub2 Disk 2.04rc1s1 beta 4 released

    Super Grub2 Disk 2.04rc1s1 beta 4 is here.

    Super GRUB2 Disk is a live cd that helps you to boot into most any Operating System (OS) even if you cannot boot into it by normal means.

    A new beta release

    This new releases features new upstream grub 2.04rc1 which includes

    • Support for multiple early initrd images
    • Support for the F2FS file-system
    • A verifier framework
    • RISC-V support
    • UEFI Secure Boot shim support
    • Btrfs Zstd improvements
    • Btrfs RAID5/RAID6 support
    • Xen PVH support
    • UEFI TPM 1.2/2.0 support


    Super Grub2 Disk 2.02s5 - Detect and show boot methods in action
    Super Grub2 Disk 2.02s5 – Detect and show boot methods in action
    Chinese Super Grub2 Disk main menu
    Chinese Super Grub2 Disk main menu
    Chinese Super Grub2 Disk - Detect all Operating Systems
    Chinese Super Grub2 Disk – Detect all Operating Systems
    Finnish Super Grub2 Disk main menu
    Finnish Super Grub2 Disk main menu
    Finnish Super Grub2 Disk - Detect all Operating Systems
    Finnish Super Grub2 Disk – Detect all Operating Systems

    We are going to see which are the complete Super Grub2 Disk features with a demo video, where you can download it, the thank you – hall of fame and some thoughts about the Super Grub2 Disk development.

    Please do not forget to read our howtos so that you can have step by step guides (how to make a cdrom or an usb, how to boot from it, etc) on how to use Super Grub2 Disk and, if needed, Rescatux.

    Super Grub2 Disk 2.02s4 main menu
    Super Grub2 Disk 2.02s3 main menu


    Here there is a little video tour in order to discover most of Super Grub2 Disk options. The rest of the options you will have to discover them by yourself.


    Most of the features here will let you boot into your Operating Systems. The rest of the options will improve the Super Grub2 Disk operating systems autodetecting (enable RAID, LVM, etc.) or will deal with minor aspects of the user interface (Colours, language, etc.).

    • Change the language UI
    • Translated into several languages
      • Spanish / Español
      • German / Deutsch
      • French / Français
      • Italian / Italiano
      • Malay / Bahasa Melayu
      • Russian
      • Finnish / Suomi
      • Chinese

    Super Grub2 Disk 2.01 rc2 Spanish Main Menu

    Super Grub2 Disk 2.01 rc2 Spanish Main Menu

    • Detect and show boot methods option to detect most Operating Systems

    Super Grub2 Disk 2.01 beta 3 Everything menu making use of grub.cfg extract entries option functionality

    Super Grub2 Disk 2.01 beta 3 – Everything menu making use of grub.cfg extract entries option functionality

    • Enable all native disk drivers *experimental* to detect most Operating Systems also in special devices or filesystems
    • Boot manually
      • Operating Systems
      • grub.cfg – Extract entries
        Super Grub2 Disk 2.01 beta 3 grub.cfg Extract entries option
        Super Grub2 Disk 2.01 beta 3 grub.cfg Extract entries option
      • grub.cfg – (GRUB2 configuration files)
      • menu.lst – (GRUB legacy configuration files)
      • core.img – (GRUB2 installation (even if mbr is overwritten))
      • Disks and Partitions (Chainload)
      • Bootable ISOs (in /boot-isos or /boot/boot-isos
      • Extra GRUB2 functionality
        • Enable GRUB2’s LVM support
        • Enable GRUB2’s RAID support
        • Enable GRUB2’s PATA support (to work around BIOS bugs/limitation)
        • Mount encrypted volumes (LUKS and geli)
        • Enable serial terminal
      • Extra Search functionality
        • Search in floppy ON/OFF
        • Search in CDROM ON/OFF
    • List Devices / Partitions
    • Color ON /OFF
    • Exit
      • Halt the computer
      • Reboot the computer

    Supported Operating Systems

    Excluding too custom kernels from university students Super Grub2 Disk can autodetect and boot most every Operating System. Some examples are written here so that Google bots can see it and also to make more confident the final user who searchs his own special (according to him) Operating System.

    • Windows
      • Windows 10
      • Windows Vista/7/8/8.1
      • Windows NT/2000/XP
      • Windows 98/ME
      • MS-DOS
      • FreeDOS
    • GNU/Linux
      • Direct Kernel with autodetected initrd
        Super Grub2 Disk - Detect any Operating System - Linux kernels detected screenshot
        Super Grub2 Disk – Detect any Operating System – Linux kernels detected
        • vmlinuz-*
        • linux-*
        • kernel-genkernel-*
      • Debian / Ubuntu / Mint
      • Mageia
      • Fedora / CentOS / Red Hat Enterprise Linux (RHEL)
      • openSUSE / SuSE Linux Enterpsise Server (SLES)
      • Arch
      • Any many, many, more.
        • FreeBSD
          • FreeBSD (single)
          • FreeBSD (verbose)
          • FreeBSD (no ACPI)
          • FreeBSD (safe mode)
          • FreeBSD (Default boot loader)
        • EFI files
        • Mac OS X/Darwin 32bit or 64bit
    Super Grub2 Disk 2.00s2 rc4 Mac OS X entries
    Super Grub2 Disk 2.00s2 rc4 Mac OS X entries (Image credit to: Smx)

    Support for different hardware platforms

    Before this release we only had the hybrid version aimed at regular pcs. Now with the upcoming new EFI based machines you have the EFI standalone versions among others. What we don’t support is booting when secure boot is enabled.

    • Most any PC thanks to hybrid version (i386, x86_64, i386-efi, x86_64-efi) (ISO)
    • EFI x86_64 standalone version (EFI)
    • EFI i386 standalone version (EFI)
    • Additional Floppy, CD and USB in one download (ISO)
      • i386-pc
      • i386-efi
      • x86_64-efi

    Known bugs

    • Non English translations are not completed

    Supported Media

    • Compact Disk – Read Only Memory (CD-ROM) / DVD
    • Universal Serial Bus (USB) devices
    • Floppy (1.98s1 version only)


    Recommended download (Floppy, CD & USB in one) (Valid for i386, x86_64, i386-efi and x86_64-efi):

    Super Grub2 Disk 2.01 rc2 Main Menu
    Super Grub2 Disk 2.01 rc2 Main Menu


    EFI x86_64 standalone version:

    EFI i386 standalone version:

    CD & USB in one downloads:

    About other downloads. As this is the first time I develop Super Grub2 Disk out of source code (well, probably not the first time, but the first time in ages) I have not been able to build these other downloads: coreboot, i386-efi, i386-pc, ieee1275, x86_64-efi, standalone coreboot, standalone i386-efi, standalone ieee1275. bfree has helped on this matter and with his help we might have those builds in next releases. If you want such builds drop a mail in the mailing list so that we aware of that need.  

    Source code:

    Everything (All binary releases and source code):


    In order to check the former downloads you can either check the download directory page for this release or you can check checksums right here:


    e2d3fc9c1097a04301851e3a28471cb9  super_grub2_disk_2.04rc1s1-beta4_source_code.tar.gz
    e0a9b2c6cda6c98cec6e25efb48f008d  super_grub2_disk_hybrid_2.04rc1s1-beta4.iso
    18efd15d8cd320ec3059387ccfd91154  super_grub2_disk_i386_efi_2.04rc1s1-beta4.iso
    df9e3da46c365586547053a6505e0492  super_grub2_disk_i386_pc_2.04rc1s1-beta4.iso
    eb3ddf1e6aea3ef8bb56f8d65c7dcd82  super_grub2_disk_standalone_i386_efi_2.04rc1s1-beta4.EFI
    ce695895bef77c1aac8c2a737d38fbac  super_grub2_disk_standalone_x86_64_efi_2.04rc1s1-beta4.EFI
    666a197765b481b82717fc3917d9c506  super_grub2_disk_x86_64_efi_2.04rc1s1-beta4.iso
    75471d118381ba82fec39fab8670d348  super_grub2_disk_2.04rc1s1-beta4.zip


    ca71b0e51f8854f8aa11f7a8b015b871b1766e47  super_grub2_disk_2.04rc1s1-beta4_source_code.tar.gz
    1c15c67ecb7cccb27ff8e4310ae84bb9ac6d08aa  super_grub2_disk_hybrid_2.04rc1s1-beta4.iso
    d3c09bcf13f4b770b073c82fddd445b7e196636c  super_grub2_disk_i386_efi_2.04rc1s1-beta4.iso
    e0a2925f7ce28fde82d9c5480bbf19ee584ef313  super_grub2_disk_i386_pc_2.04rc1s1-beta4.iso
    730ea63e4cb279710f7ffb2d4450791464aee55c  super_grub2_disk_standalone_i386_efi_2.04rc1s1-beta4.EFI
    f15116b867ebad51727d47289bc623da27f8a53d  super_grub2_disk_standalone_x86_64_efi_2.04rc1s1-beta4.EFI
    855debb761c7caa9294f1a1d0af56e01f24ee455  super_grub2_disk_x86_64_efi_2.04rc1s1-beta4.iso
    8800e20ac105714803cddec69ffdd06fbd530672  super_grub2_disk_2.04rc1s1-beta4.zip


    eb2f48b75de9d2a566c7385f1956dcc80bd0484ac1a2bf0a0e2f914930b4acd6  super_grub2_disk_2.04rc1s1-beta4_source_code.tar.gz
    77a2716e544bd8ee598e306f4fcc776e65124841b1926fa80d849f3900d54719  super_grub2_disk_hybrid_2.04rc1s1-beta4.iso
    d7a0657e76198d00f2dc5b6b5d986758e6046dfc219c1b3020230737c3e90f76  super_grub2_disk_i386_efi_2.04rc1s1-beta4.iso
    65f67deec4c683fa211ca17621444c924b371d506a7ac73e377a0bbaeb3247e4  super_grub2_disk_i386_pc_2.04rc1s1-beta4.iso
    0b691c73346abae945d3c827080eb4640e52fa290effd5d1122eba635464aedf  super_grub2_disk_standalone_i386_efi_2.04rc1s1-beta4.EFI
    d3d94e870a9a2667feb1c68393df6e0c1fd67c1e92b2d15cf31d78e3de12fc59  super_grub2_disk_standalone_x86_64_efi_2.04rc1s1-beta4.EFI
    007da80fa9fa051cd35a939a3f25860030ab24d15b27bddd58519aa0698285e3  super_grub2_disk_x86_64_efi_2.04rc1s1-beta4.iso
    222bfa9a79f6ddfe1e15108cda35ed521d7a92a97fd0e53e3780b0c931fdb6c6  super_grub2_disk_2.04rc1s1-beta4.zip

    Changelog (since former 2.00s2 stable release)

    Changes since 2.02s10 version:

    • Use grub-2.04-rc1 upstream grub2 tag

    Changes since 2.02s9 version:

    • ‘Enable all native disk drivers’ option was improved. It no longer crashes.
    • Now devices are cached and Super Grub2 Disk is faster
    • Modify sg2d_directory and sg2d_dev_name variables so that SG2D is more portable
    • Standalone images are no longer broken and show main menu

    Changes since 2.02s8 version:

    • (Devel) supergrub-release-news helps release team to generate a template for its news. Initial implementation.
    • (Devel) Added supergrub-release-changes to help with the release team.
    • (Devel) INSTALL: Improved explanation about what release scripts and file outputs.
    • Rename ‘(GRUB2 installation (even if mbr is overwritten))’ to: ‘(GRUB2 installation)’
    • Use grub-2.02 upstream grub2 tag (Stable version)
    • Added Chinese (zh-cn) translation
    • Added Finnish translation (Thanks to tavallinenvirtanen7)

    Changes since 2.02s7 version:

    • Use grub-2.02-rc2 upstream grub2 tag
    • Default theme starfield is no longer included. This will make images smaller.
    • (Devel) Make sure normal isos and standalone images have hash files without its full path.
    • (Devel) File hashes generation has been rewritten to work from the single supergrub-mkcommon generate_filename_hashes function
    • (Devel) Now MD5SUMS, SHA1SUMS and SHA256SUMS files are generated as part of the official build.

    Changes since 2.02s6 version:

    • Updated grub 2.02 build to tag: 2.02~rc1

    Changes since 2.02s5 version:

    • Added Russian language
    • Improved Arch Linux initramfs detection
    • Added i386-efi build support
    • Added i386-efi to the hybrid iso
    • Grub itself is translated when a language is selected
    • Added loopback.cfg file (non officially supported)
    • (Devel) sgrub.pot updated to latest strings
    • (Devel) Added grub-build-004-make-check so that we ensure the build works
    • (Devel) Make sure linguas.sh is built when running ‘grub-build-002-clean-and-update’
    • (Devel) Updated upstream Super Grub2 Disk repo on documentation
    • (Devel) Move core supergrub menu under menus/sgd
    • (Devel) Use sg2d_directory as the base super grub2 disk directory variable
    • (Devel) New supergrub-sourcecode script that creates current git branch source code tar.gz
    • (Devel) New supergrub-all-zip-file script: Makes sure a zip file of everything is built.
    • (Devel) supergrub-meta-mkrescue: Build everything into releases directory in order to make source code more clean.
    • (Devel) New supergrub-official-release script: Build main files, source code and everything zip file from a single script in order to ease official Super Grub
      2 Disk releases.

    Changes since 2.02s4 version:

    • Stop trying to chainload devices under UEFI and improve the help people get in the case of a platform mismatch
    • (Devel) Properly support source based built grub-mkfont binary.
    • New options were added to chainload directly either /ntldr or /bootmgr thanks to ntldr command. They only work in BIOS mode.

    Changes since 2.02s3 version:

    • Using upstream grub-2.02-beta3 tag as the new base for Super Grub2 Disk’s grub.
    • Major improvement in Windows OS detection (based on BCD) Windows Vista, 7, …
    • Major improvement in Windows OS detection (based on ntldr) Windows XP, 2000, …

    Changes since 2.02s2 beta 1 version:

    • (Devel) grub-mkstandalone was deleted because we no longer use it
    • Updated (and added) Copyright notices for 2015
    • New option: ‘Disks and Partitions (Chainload)’ adapted from Smx work
    • Many files were rewritten so that they only loop between devices that actually need to be searched into.
      This enhacement will make Super Grub2 Disk faster.
    • Remove Super Grub2 Disk own devices from search by default. Added an option to be able to enable/disable the Super Grub2 Disk own devices search.

    2.02s2 beta 1 changelog:

    • Updated grub 2.02 build to commit: 8e5bc2f4d3767485e729ed96ea943570d1cb1e45
    • Updated documentation for building Super Grub2 Disk
    • Improvement on upstream grub (d29259b134257458a98c1ddc05d2a36c677ded37 – test: do not stop after first file test or closing bracket) will probably make Super Grub2 Disk run faster.
    • Added new grub build scripts so that Super Grub2 Disk uses its own built versions of grub and not the default system / distro / chroot one.
    • Ensure that Mac OS X entries are detected ok thanks to Users dir. This is because Grub2 needs to emulate Mac OS X kernel so that it’s detected as a proper boot device on Apple computers.
    • Thanks to upstream grub improvement now Super Grub2 Disk supports booting in EFI mode when booted from a USB device / hard disk. Actually SG2D was announced previously to boot from EFI from a USB device while it only booted from a cdrom.

    2.02s1 beta 1 changelog:

    • Added new option: “Enable all native disk drivers” so that you can try to load: SATA, PATA and USB hard disks (and their partitions) as native disk drives. This is experimental.
    • Removed no longer needed options: “Enable USB” and “Enable PATA”.
    • “Search floppy” and “Search cdrom” options were moved into “Extra GRUB2 functionality menu”. At the same time “Extra Search functionality” menu was removed.
    • Added new straight-forward option: “Enable GRUB2’s RAID and LVM support”.
    • “List devices/partitions” was renamed to “Print devices/partitions”.
    • “Everything” option was renamed to “Detect and show boot methods”.
    • “Everything +” option was removed to avoid confusions.
    • Other minor improvements in the source code.
    • Updated translation files. Now most translations are pending.
    • Updated INSTALL instructions.

    Finally you can check all the detailed changes at our GIT commits.

    If you want to translate into your language please check TRANSLATION file at source code to learn how to translate into your language.

    Thank you – Hall of fame

    I want to thank in alphabetical order:

    • The upstream Grub crew. I’m subscribed to both help-grub and grub-devel and I admire the work you do there.
    • Necrosporus for his insistence on making Super Grub2 Disk smaller.

    The person who writes this article is adrian15 .

    And I cannot forget about thanking bTactic, the enterprise where I work at and that hosts our site.

    Some thoughts about Super Grub2 Disk development

    Super Grub2 Disk development ideas

    I think we won’t improve Super Grub2 Disk too much. We will try to stick to official Grub2 stable releases. Unless a new feature that it’s not included in official Grub2 stable release is needed in order to give additional useful functionalities to Super Grub2 Disk.

    I have added some scripts to Super Grub2 Disk build so that writing these pieces of news is more automatic and less prone to errors. Check them out in git repo as you will not find them in 2.02s8 source code.

    Old idea: I don’t know when but I plan to readapt some scripts from os-prober. That will let us detect more operating systems. Not sure when though. I mean, it’s not something that worries me because it does not affect too many final users. But, well, it’s something new that I hadn’t thought about.

    Again, please send us feedback on what you think it’s missing on Super Grub2 Disk.

    Rescatux development

    I want to focus on Rescatux development on the next months so that we have an stable release before the end of 2017. Now I need to finish adding UEFI features (most finished), fix the scripts that generate Rescatux source code (difficult) and write much documentation.

    (adrian15 speaking)

    Getting help on using Super Grub2 Disk

    More information about Super Grub2 Disk

    Debian Buster feedback on Rescapp needed

    While we wait for Rescatux to be rewritten, once again, so that it’s based on Debian 10 (Buster) its main program: Rescapp needs some love. Some testing. Some polishment.

    So if you want to help Rescatux / Rescapp development and you happen to have either a:

    Debian Buster 10 or Testing AMD64 Live CD

    or an

    Debian Buster 10 or Testing 686 Live CD

    you are welcome to test Rescatux repo and report any bugs that you find on the Rescapp issues page.

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