Sorry to Diogene Laerce. I was very confused. And also, my answer doesn't answer to any question, I fear. anyway:
thanks to this topic I have forced myself for trying to fix a trouble with Grub, and indeed I have done! well, my old PC had run a Mint 7, together with a winXP and Zenwalk. Grub was installed on mint; few months ago it suddenly stopped running and I stopped using my old PC, too. This morning I launched a live SystemRescueCD 1.1.5 - another quite old one - and I found out that the problem was of the partition, or better of any bad superblock in it. So I listed the superblocks of the partition through TestDisk I could find in the live CD; then I mounted just that partition while having changed the superblock. At Last, I ordered to SYstemRescueCD to make a new installation of grub in the previous partition newly mounted. So I could boot mint7 and give a $ sudo update-grub. this way allows to restore a basic grub without any other tool. n.b. SystemRescue is based on gentoo and shows a root-terminal so I didn't need to play with sudo. I guess that any other live distro could run as well. # mount /dev/sda2 /mnt (where grub is) # grub-install --root-directory=/mnt /dev/sda that's all. Thankyou very much for being patient 2015-02-07 18:30 GMT+01:00 Diogene Laerce <me_buss...@yahoo.fr>: > Hi, > > You made a mistake : you sent your message to me and not to the list. > No harm done. But I am not everybody so maybe you would want to resend > it. ;) > > Kind regards, > -- > “One original thought is worth a thousand mindless quotings.” > “Le vrai n'est pas plus sûr que le probable.” > > Diogene Laerce > > > On 02/07/2015 06:17 PM, albcares wrote: >> hallo to everybody! >> thanks to this topic I have forced myself for trying to fix a trouble >> with Grub, and indeed I have done! >> well, my old PC had run a Mint 7, together with a winXP and Zenwalk. >> Grub was installed on mint; few months ago it suddenly stopped running grub. >> This morning I launched a live SystemRescueCD 1.1.5 - a quite old one, >> too - and I found out that the problem was of the partition, or better >> of any bad superblock in it. So I listed the superblocks of the >> partition through TestDisk I could find in the live CD; then I mounted >> just that partition while having changed the superblock. >> At Last, I ordered to SYstemRescueCD to make a new installation of grub >> in the previous partition newly mounted. >> So I could boot mint7 and give a $ sudo update-grub. >> this way allows to restore a basic grub without any other tool. >> n.b. SystemRescue is based on gentoo and shows a root-terminal so I >> didn't need to play with sudo. I guess that any other live distro could >> run as well. >> >> # mount /dev/sda2 /mnt (where grub is) >> # grub-install --root-directory=/mnt /dev/sda >> >> that's all. Thankyou very much for being patient >> >> 2015-02-07 17:09 GMT+01:00 Diogene Laerce <me_buss...@yahoo.fr >> <mailto:me_buss...@yahoo.fr>>: >> >> >> On 02/07/2015 04:31 PM, Bret Busby wrote: >> > On 07/02/2015, Diogene Laerce <me_buss...@yahoo.fr >> <mailto:me_buss...@yahoo.fr>> wrote: >> >> On 02/07/2015 06:32 AM, Bret Busby wrote: >> >>> Hello. >> >> Hi, >> >> >> >>> [...] Now, the request is this; please advise the stepwise >> procedure for >> >>> using a Debian 7.x LiveCD, to (attempt to) restore GRUB, so that the >> >>> GRUB menu is available and accessible and usable, and, detects the >> >>> installed operating systems, and offers them as boot options. >> >> You could give a try to Grub Rescue : http://www.supergrubdisk.org/ >> >> >> >> Good luck ! >> >> >> > Hello. >> > >> > Thank you for that suggestion. >> > >> > At first look, that seems useful for me, for a number of reasons >> > (including, maybe finding the installed Win8 (nasty thing that it is), >> > and, eliminating the forgotten passwords, and, resetting the Debian 5 >> > root and user passwords that I have forgotten on a different, very >> > important computer, so I can maybe update it). >> > >> > However, ... >> > >> > At >> > http://www.supergrubdisk.org/ >> > is >> > >> > " >> > I am going to modify Rescatux 0.32 roadmap so that it’s easier to >> > release Rescatux 0.32 even if it lacks some importants items. >> > >> > We drop UEFI Boot Support. This does not mean not being able to fix >> > grub systems based on UEFI. What it means is that I was going to make >> > sure that you could boot Rescatux cd in EFI mode without a problem. >> > You will be able to boot Rescatux cd from a UEFI system if the CD is >> > booted in legacy boot mode (BIOS) but not as EFI mode. The reason for >> > dropping this UEFI boot support is because of Debian Live for its >> > Debian Wheezy version not being good enough for enabling UEFI boot >> > based on grub2. I also do not want to achieve the same result by using >> > current SG2D and the Rescatux isolinux image as I did in the old days. >> > I just want a plain isolinux based ISO image and that’s it. I also do >> > not want to rebase Rescatux on Debian Jessie even if it’s tempting. >> > Once we release the stable Rescatux 0.32 we would be able to think >> > about rebasing Rescatux on Debian Jessie which its Live Build package >> > will have EFI support based on syslinux / isolinux. Not yet, but I’m >> > sure that they won’t release Debian Live for Jessie without EFI boot >> > support because it’s a must nowadays. >> > " >> > >> > So, the question is ... does it work on a GPT/UEFI system? The above >> > passage, makes trying to use the application, on a GPT'UEFI system, >> > sound scary, kind of like flying in one of those big jet airliner >> > things, with the windows open, and without parachutes. >> >> Sorry to hear that, I actually never had to deal with a GPT/UEFI system >> as I just removed the security and installed as a normal one. >> >> Anyway the guy does say : "This does not mean not being able to fix >> grub systems based on UEFI.". So what i'd do in your case is verify >> if you can effectively boot with UEFI enabled from the sgb disk >> without issue. Then I guess you could assume that you could fix >> your boot.. >> >> And of course, wait for more feedbacks ! :) >> >> Kind regards, >> >> -- >> “One original thought is worth a thousand mindless quotings.” >> “Le vrai n'est pas plus sûr que le probable.” >> >> Diogene Laerce >> > -- linux user #521635 -- 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/cap-pvzt+ak7binwygh+2qvrqs_hqejavu3q+5g26gics5gk...@mail.gmail.com
