On 20/02/2015, Bret Busby <bret.bu...@gmail.com> wrote: > On 20/02/2015, Bret Busby <bret.bu...@gmail.com> wrote: >> On 20/02/2015, Bob Proulx <b...@proulx.com> wrote: >>> Bret Busby wrote: >>>> The Debian 7.60 LXDE LiveCD does not have an option to boot into rescue >>>> mode. >>> >>> You could always download the standard debian-installer and use that >>> to boot rescue mode. It is a very good option. >>> >>> However if you have a livecd and you say you do then that should be >>> enough to do what you need. Simply chroot into your system and then >>> use it to repair your bootloader. >>> >>> The basic process goes like this. >>> >>> * Boot a livecd image. >>> * Mount the target system to repair. >>> >>> mkdir /target >>> mount /dev/sda5 /target >>> mount /dev/sda1 /target/boot >>> chroot /target /bin/bash >>> grub-install /dev/sda >>> exit >>> shutdown -r now >>> >>> You will need to adapt it to your system environment. Your device >>> paths will be uniquely yours. This is just an example of the overall >>> process to give you the idea of the flow. The chroot stacks a shell >>> logged into the target environment. Once inside that environment then >>> you have access to the system commands to repair grub. You can >>> apt-get install additional software. You can fix things. >>> >>> Bob >>> >> >> Hello. >> >> I had found a LiveCD rescue iso, and had tried to load that, in case >> that would take me to a "restore grub" menu option, but that booted >> into a command line, that showed that fdisk was not available, and >> chroot was not available, so I tried to shut the system down, by using >> <CTRL><ALT><DEL>, and that let me retrieve the DVD, and I was going to >> try booting using an install disk iso, but, it booted into the botched >> PC-BSD thing, and, holding down the <ESC> key, got me a screen that >> had at the bottom, >> "Press enter to boot the selected OS" (the botched PC-BSD, that simply >> fails, was the only OS displayed as an option)" >> " "e' to edit the commands before booting" - meaningless to me >> "or "c' for a command line" >> so I pressed "C", hoping to be able to use a "shutdown" command, so >> that I could boot another computer, so as to download and write a >> current install Debian iso image, and, when I pressed the "c", I got a >> window that appeared, that is a GRUB thing, with the >> "grub>" prompt. >> >> So, now, this has evovled to the new question; what do I type in at >> the GRUB prompt, to make it search for, and, offer as boot options, >> the pre-existing, installed, Ubuntu and Debian installations? >> >>
>> > > I have searched and found > http://www.linux.com/learn/tutorials/776643-how-to-rescue-a-non-booting-grub-2-on-linux/ > > and have done ls, that shows 13 GPT partitions, of which, I know (or > believe) that 3 are operating system installations partitions, so I > apparently need to do an ls on each partition, to find which are the > operating system partitions, then, I believe, enable one of the Linux > partitions, using GRUB, then, boot into that partition, then, run, as > root (so it would need to be the Debian partition, I think), > # update-grub > which would, I hope, restore GRUB as the multiple OS bootloader. > > Well, I tried following the instructions at http://www.linux.com/learn/tutorials/776643-how-to-rescue-a-non-booting-grub-2-on-linux/ combined with the instructions at http://members.iinet.net/~herman546/p20/GRUB2%20CLI%20Mode%20Commands.html and, after some errors being displayed, it took me into (initramfs) with which, I have no idea what to do. -- Bret Busby Armadale West Australia .............. "So once you do know what the question actually is, you'll know what the answer means." - Deep Thought, Chapter 28 of Book 1 of "The Hitchhiker's Guide to the Galaxy: A Trilogy In Four Parts", written by Douglas Adams, published by Pan Books, 1992 .................................................... -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/cacx6j8oqxzw1yt+emj_qa4sxh_btowy_msoocyysldezfd-...@mail.gmail.com
