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#systemrecovery — Public Fediverse posts

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  1. Linux Runlevel 1 vs Emergency Mode 🐧

    Runlevel 1 – Rescue Mode
    • Root filesystem mounted
    • Basic services running
    • Network disabled
    • Command: systemctl rescue

    Emergency Mode
    • Root read-only (initrd only)
    • No services, no network
    • Bare minimum to fix system
    • Command: systemctl emergency

    Use when your system won't boot properly. 🔧

    #Linux #SysAdmin #DevOps #SystemRecovery

  2. 🚀 How to Update GRUB and Regenerate Initramfs from a Manjaro Live USB System 🐧

    Sometimes things break—it’s Linux life! 💻 Maybe your Manjaro installation isn’t booting correctly after an update or some system tweaks. Don’t panic! You can easily fix boot-related issues using your Manjaro Live USB stick.

    Here’s how you can update your GRUB bootloader and regenerate your initramfs directly from a Manjaro Live USB. Let’s dive in! 🌊

    🔧 Step 1: Boot into the Manjaro Live USB & Mount your System

    Boot your computer with a Manjaro USB stick. Open a terminal and identify your root partition using:

    sudo fdisk -l

    Let’s say your root partition is /dev/sda2, then mount it:

    sudo mount /dev/sda2 /mnt

    If you have separate boot or EFI partitions, mount them too:

    • For a separate /boot partition:
    sudo mount /dev/sda1 /mnt/boot
    • For an EFI partition:
    sudo mount /dev/sdaX /mnt/boot/efi

    (Replace /dev/sdaX with your actual EFI partition.)

    🛠️ Step 2: Enter your Installed System with manjaro-chroot

    Manjaro makes this super easy:

    sudo manjaro-chroot /mnt

    Now you’re working inside your actual system environment! 🚪

    ⚙️ Step 3: Update GRUB Bootloader

    Run these commands based on your boot type:

    • For BIOS/Legacy boot:
    grub-install /dev/sdaupdate-grub
    • For EFI boot:
    grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=manjaro --recheckupdate-grub

    🔄 Step 4: Regenerate your Initramfs

    Now regenerate initramfs images:

    mkinitcpio -P

    🎉 Step 5: Finish & Restart!

    Exit the chroot environment:

    exit

    Unmount your partitions:

    sudo umount -R /mnt

    And reboot your system:

    sudo reboot

    That’s it! 🎯 Your Manjaro system should now boot up smoothly.

    🔗 Useful Resources:

    👉 Check out my original conversation with ChatGPT here for more details.

    Happy Linux adventures! 🐧✨

    #ArchLinux #BIOS #Bootloader #chroot #EFI #GRUB #initramfs #Linux #LinuxCommands #LinuxTutorial #LiveUSB #Manjaro #mkinitcpio #SystemRecovery #Terminal #Troubleshooting

  3. The 6+ hours overnight memtest gave me a PASS on the new memory configuration, so now I am *copying* the files over to a new hard disk (configured as a single-disk RAID1, to be updated with the disk I'm copying *from* afterwards).

    Copying 1.5 Tbyte of files does take a while (5 hours and counting so far), but since I don't trust the metadata of the old filesystem, I am not taking the chance to just have Linux RAID mirror it over.

    I need to clean up the filesystem, it is heavy with backups of backups of old root filesystem copies which had backups of old machines with backups on them...

    #Linux #SystemRecovery

  4. The 6+ hours overnight memtest gave me a PASS on the new memory configuration, so now I am *copying* the files over to a new hard disk (configured as a single-disk RAID1, to be updated with the disk I'm copying *from* afterwards).

    Copying 1.5 Tbyte of files does take a while (5 hours and counting so far), but since I don't trust the metadata of the old filesystem, I am not taking the chance to just have Linux RAID mirror it over.

    I need to clean up the filesystem, it is heavy with backups of backups of old root filesystem copies which had backups of old machines with backups on them...

    #Linux #SystemRecovery

  5. The 6+ hours overnight memtest gave me a PASS on the new memory configuration, so now I am *copying* the files over to a new hard disk (configured as a single-disk RAID1, to be updated with the disk I'm copying *from* afterwards).

    Copying 1.5 Tbyte of files does take a while (5 hours and counting so far), but since I don't trust the metadata of the old filesystem, I am not taking the chance to just have Linux RAID mirror it over.

    I need to clean up the filesystem, it is heavy with backups of backups of old root filesystem copies which had backups of old machines with backups on them...

    #Linux #SystemRecovery

  6. The 6+ hours overnight memtest gave me a PASS on the new memory configuration, so now I am *copying* the files over to a new hard disk (configured as a single-disk RAID1, to be updated with the disk I'm copying *from* afterwards).

    Copying 1.5 Tbyte of files does take a while (5 hours and counting so far), but since I don't trust the metadata of the old filesystem, I am not taking the chance to just have Linux RAID mirror it over.

    I need to clean up the filesystem, it is heavy with backups of backups of old root filesystem copies which had backups of old machines with backups on them...

    #Linux #SystemRecovery

  7. Everyone should have a #SystemRecovery plan. Learn how to set up yours on #Linux with an article from #FOSS educator and community leader Morrolinux!

    Check out the #LPI blog to master the essentials tools, from #Grub2 to #SystemRescue: lpi.org/5jbl

    #opensource #IT #ITsecurity #BootRepairDisk #tech

  8. Everyone should have a plan. Learn how to set up yours on with an article from educator and community leader Morrolinux!

    Check out the blog to master the essentials tools, from to : lpi.org/5jbl

  9. Everyone should have a #SystemRecovery plan. Learn how to set up yours on #Linux with an article from #FOSS educator and community leader Morrolinux!

    Check out the #LPI blog to master the essentials tools, from #Grub2 to #SystemRescue: lpi.org/5jbl

    #opensource #IT #ITsecurity #BootRepairDisk #tech

  10. Everyone should have a #SystemRecovery plan. Learn how to set up yours on #Linux with an article from #FOSS educator and community leader Morrolinux!

    Check out the #LPI blog to master the essentials tools, from #Grub2 to #SystemRescue: lpi.org/5jbl

    #opensource #IT #ITsecurity #BootRepairDisk #tech

  11. Everyone should have a #SystemRecovery plan. Learn how to set up yours on #Linux with an article from #FOSS educator and community leader Morrolinux!

    Check out the #LPI blog to master the essentials tools, from #Grub2 to #SystemRescue: lpi.org/5jbl

    #opensource #IT #ITsecurity #BootRepairDisk #tech