By using pvgrub from grub2, each domu can boot with its own kernel instead of using the dom0 kernel, which makes life easier for updates and multi distribution xen installs. The guest has grubcommon, grub2common, grubxen and grubxenbin installed, then grubinstall targeti386xen devxvda was run. It should detect windows on the first disk, and add an entry to the bootloader choices. Support bzip2, xz and lzo compressed kernels xz compressed kernels seem to be what we are starting to see in the wild, but we may as well support everything that libxc does in pvgrub. It is recommended to only install the standard package selection and nothing else, as proxmox ve brings its own packages for qemu, lxc. Use cursor positioning escape sequences instead of just using carriage returns. This version of grub is based on a cleaner design than its predecessors, and provides the following new features. But if i try without the usb it starts on windows 7. In this article i will show you how to install grub customizer 4. The xen live cd was created using the debian live project. This will provide one grub to a monitor display and serial console. Its important that my wifes pc boot windows by default. And you could then optionally install grub also to the other disk boot sector by running grubinstall devsdb.
Grub customizer is a great application, it allows you to add or edit menu entry and change the default os boot with gui. The domu boot filesystem can be anything that grub2 supports the idea is to put a pv grub binary in dom0, which you can use as a. This guide explains how to set up software raid1 on an already running lvm system debian etch. Save the changes by clicking save profile at the bottom of the page, and reboot your linode from the dashboard tab once the linode has rebooted, log back into it and issue the command uname a. Grub2 broken after bios update dual boot i am dual booting windows 10 was 8. Not sure if the problem is on grub or gnumach ide loops thats the time coming from the hypervisor not a problem from grub anyway yes, loops in steps of around 0x40 and comes back regularly. They will be treated as kernels, and grub menu entries will be created for each. Concerning step 2 i hate for everyone to have to download this big file, but i dont know how i might upload somewhere just the relevant files. It works by looking in boot for all files which start with vmlinuz. Debian desktop environment is important otherwise you will have a cli based system. Install grub2 on usb and hdd from windows aio boot.
By using pv grub from grub2, each domu can boot with its own kernel instead of using the dom0 kernel, which makes life easier for updates and multi distribution xen installs. For example, under linux the following will install grub into the mbr of the. With some distributions, the initrd image prepared during the kernel installation process does not work correctly with the linode, and isnt needed anyhow configure for pvgrub. Ubuntu installer team mail archive please consider filing a bug or asking a question via launchpad before contacting the maintainer directly. This is a dependency package for a version of grub that has been built for use with the xen hypervisor i. Recently my hard disk went bad some bad sectors developed, my i windows xp boot file corrupted.
I will post some instructions in a hope it will help to other debian folks which were clueless like me. Run command prompt under admin and go to the grub2. Create a new vm using the following steps through xencenter. However, i dont recommend using boot on lvm at the moment since grub support for lvm is limited and unofficial. This meant that it was now possible to compile the upstream grub 2 code base to run as a pvgrub2 xen pv guest, in much the same way as the original pvgrublegacy port of grub legacy. First of all, boot the machine up and get access to the root partition. The grub bootloader will be configured in such a way that the system will still be able to boot if one of the hard drives fails no matter which one. Ok, i did some testing and finally managed to get working pved debian 64.
Heres how you can set it up guaranteed to work with linuxlts 3. The version i386 of the xen live cd has a xen hypervisor for 64bits cpus as an option in grubs menu. In some cases pvgrub is arguably more secure but as it is not included with debian we wont use it here though it is recommended in production environments where guests cannot be trusted. The procedure is probably very similar to grub, but rerunning lilo. Packages providing grub addons can plug in their own script rules and trigger updates by invoking updategrub. Using pygrub or the stubdom implementation known as pv grub is best practice for starting pv guests. Gnu grub grand unified bootloader is a free and open source project that provides users with an easytoinstallandconfigure boot loader software for booting a single or multiple operating systems that are installed on a personal computer or laptop key features include support for real memory management, internationalization support, portability, support for crossplatform installations. You can use without any problem, a 32bits dom0domu on top of a 64bits hypervisor. For information on where grub should be installed on pc bios platforms, see.
In disk management is disk 2, we will remember number 2 here grub2 for windows supports installation and. If you prefer a gui way then download grub customizer portable then mark the applications executable after download right click properties permissions check allow executing as a programme then doubleclick and run and then click file install to mbr. How to set up software raid1 on a running lvm system incl. This package contains a version of grub that has been built for use with the xen hypervisor i. It is a safer as in more reliable but specifically as in more secure see the technical details section and more efficient alternative to pygrub to boot domu images. The simple way to install grub grub2 from any linux livecd or any other bootable medium. Problem is neither i continue reading restore debian linux grub boot loader. This setting will be taken over to userland, and there will be two login prompt for tty1 and ttys0. Custom compiled kernel with pvgrub on arch linux linode.
In case anyone doesnt want to compile their own kernel, the stock kernel in arch linux fully supports xen, paravirtualization, etc. Because it is not available via repository, we have to download the deb packages from launchpad and install the via commandline. Using pygrub or the stubdom implementation known as pvgrub is best practice for starting pv guests. Internet access and some way to download debian and burn it to the cddvd e. Check the number of hard disk you will install, be it usb or hdd. After debian installation, how to add grub entries for new.
Solved installing and using grub on lvm installation. Install a standard debian stretch, for details see debian, and select a fixed ip. It also allows you to customize the look of your grub menu including changing the background and the fonts of your entry. Grub doesnt support lvm raid1 it supports only raid 456 type iirc.
Debian user forums view topic how to boot debian live. Installation of grub bootloader may fail if more than one disk device is available. Grub2 reinstall after debian downgrade from jessie to wheezy. If you require pv mode, install grub2xen in dom0 and change the templates. Both debian9 and fedora26 templates already have grub and related tools. Also update the zlib library to the latest version signedoffby. Please make sure that your hostname is resolvable via etchosts, i. Choose your desired software to install by pressing scape from your keyboard.
Grub2 reinstall after debian downgrade from jessie to wheezy and so ive messed up. This pvgrub is completely independent from the way you boot dom0 itself. But editing the menuentry for the linux os has me baffled. Pvgrub paravirtual grub is a boot manager for xen virtual machines. Get a debian installation cd for the same architecture i.
I extensively used posts from this part of forum so big thanks to all authors out there too lazy to search to original posters and give them credits. Debian details of package grubxen in buster debian packages. As a simple example well create a pv guest in lvm logical volume lv by doing a network installation of ubuntu other distros such as debian, fedora, and centos can be installed in a similar way. The problem is when i reboot my system it start on windows 7 by default, i tried to boot again the debian installer and my surprise was the boot usb load the grub screen, with the option to load debian and windows 7. I had initially updated only the guests grub but have now tested with the new grubi386xen. Physical volume pv name devsda1 vg name desktoplvm pv size 243. The domu boot filesystem can be anything that grub2 supports the idea is to put a pvgrub binary in dom0, which you can use as a. Choose yes and press enter from the keyboard to install the grub boot loader to the master boot record. To use this, you will need a machine with an internet connection. Reinstalling the grub boot loader the tao of debian. In some cases pv grub is arguably more secure but as it is not included with debian we wont use it here though it is recommended in. How to recover grub debian sarge after reinstalling windows. This is useful in conjunction with n name if you are using multiple pv invocations in a single, long, pipeline.
Depending on your internet connection, you may download either of the following. Theres a plan to add official and more robust support though there are ongoing discussions between grub and lvm team. Fixing an unbootable computer after a failed grub installation can be a bit tricky. You can easily set the default grub selection without editing the g file.