On 2024-12-22, koffie <kof...@gmx.net> wrote: > Ubuntu / Oracular > Hello, > > It is not possible to download an iso file. > It takes hours to get it but it doesn't boot > The sha is fail permanently. > > On today I've got a fail message during a test - download on youtube. > It mentioned there is no dirmanager but it is on my computer. > > I have to repair the bootpartition on a dual boot system and the iso > files provide maybe support to repair the damage. > Anyone who can help? > > >
Make sure you're downloading the ISO file from the official Ubuntu website to avoid corrupted or fake files. Stable Connection: If your download is slow or fails, try using a download manager like wget or curl, or a dedicated download manager application. These tools can resume interrupted downloads. bash wget -c <download-link> Torrent Option: Consider downloading the ISO via a torrent client. Ubuntu offers torrent links for most versions, which often result in more reliable downloads. Checksum Verification Once the ISO is downloaded, verify its integrity with the provided SHA256 checksum from the official website. Example: sha256sum <filename>.iso Compare the output with the checksum listed on the Ubuntu website. If it doesn’t match, the file is corrupted and must be re-downloaded. Create a Bootable USB Use a reliable tool to create a bootable USB drive: Windows: Rufus Linux: balenaEtcher, UNetbootin, or the dd command: sudo dd if=<filename>.iso of=/dev/sdX bs=4M status=progress && sync Replace /dev/sdX with the correct USB device. Troubleshoot Boot Issues Ensure your computer’s BIOS/UEFI is set to boot from USB. Enter the BIOS settings (usually by pressing a key like F2, F12, or Del during startup) and adjust the boot order. If the USB doesn’t boot, double-check the creation process or try another USB stick. Repair Boot Partition If you’ve managed to boot from the live USB: Open a terminal. Install boot-repair: sudo add-apt-repository ppa:yannubuntu/boot-repair sudo apt-get update sudo apt-get install -y boot-repair Launch boot-repair: boot-repair Follow the on-screen instructions to repair the bootloader. Check for Dirmanager Error If you received a "no dirmanager" error, ensure that all necessary packages are installed: sudo apt-get install -f Re-run the process that failed and check for further error messages.
