Remove or replace the internal drive of the computer you intend to use
Simple and stable portable system for UEFI and BIOS So, if there are problems, please send a mail to: nio dot wiklund at gmail dot com.
The future will show if this boot system can resist upgrades of Windows and Ubuntu. Other useful tweaks are described separately at #Tweak_the_system I have modified the menuentries to use the links for vmlinuz and initrd to make it independent of upgrades of the kernel. The head and tail of the file is from the isoboot version and the middle with menuentries from Ubuntu root. Instead I saved 'backup' copies of the two grub.cfg files and made a hybrid version in the active location in the usbboot partition (partition #3). But when the installed system is upgraded with new kernels you will have to copy grub.cfg from the root file system to overwrite that of the usbboot partition again.Ī useful thing to do in the menuentries is to point to the links in the root partition for vmlinuz and initrd to make the boot system independent of upgrades of the kernel, because they have the same name but will be upgraded and point to the two most current kernels. Now you could copy the grub.cfg of the root file system to overwrite that of the usbboot partition (partition #3) and it would work at least in the beginning.Select the same first partition /dev/sdx1 for the bootloader, in other words as PBR (not MBR), so that it will not interfere with the boot system already set up in the template.Select the target drive and the first partition /dev/sdx1 as for the root file system, / Start the installer and select 'Something else' at the partitioning window.Use gparted to create an ext4 partition (and it will be partition #1 although it will be at the tail end of the drive.Boot in BIOS mode into the Ubuntu 20.04 LTS live system because it will be easier to control where to put the bootloader.It helps to get things correct if you unplug, disconnect or otherwise disable the internal drive.isoboot, but here we use this template for an installed system, that will be portable if installed in an external drive. There is an alternative to create a grub-n-iso drive described at. It is easy, (one simgle step) with mkusb, but you can perform each step with other tools in Linux or Windows. Then extract, clone and fix the system directly.)įrom the template file you extract, clone and fix a boot system in the target drive.
(But if you want to make it easy, you can download and check it with the md5sum in. I will describe the method that I used to create the system in the compressed image file It is easy to extract and clone to a USB pendrive or other drive (SSD or HDD), and after that it can be used directly to boot into an iso file, and indirectly (after some tweaks) into an installed system.Ĭompressed image file (2.6 MB) - dd_ There is a compressed image file, that can be used to set up the boot structure to boot in both UEFI and BIOS mode. This is an update, basically using the method described below, but making things a bit easier.
Simple and stable portable system for UEFI and BIOS.Easy way to get installed Ubuntu 20.04 LTS that boots in UEFI and BIOS.