Grub recover - install Ubuntu, keep Win7












1















I messed up the grub loader by accident and all tutorials to install it again failed. Now I can't boot anything so I created an Ubuntu Boot Stick to access all my data. When I tried to reinstall the grub loader I have had several different errors like




  • error no such device

  • failed to get cannonical path of /cow

  • file /grub/i386-pc/normal.mod can not be found

  • the command normal and insmod normal cannot be found


and even more. So I give up and I would like to ask if it is safe to reinstall Ubuntu and keep Win7. Ubuntu offers an option via the boot stick I created to do so, but in the last step there is a warning that the boot sector of one partition will be changed and one partition will be overwritten. I do not care about the installed Ubuntu partition, this one can be overwritten. But the Win7 partition should stay untouched. Is there a way to find out and to be sure nothing of Win7 will be deleted or will the setup be so intelligent on its own?



Edit: As far as I know I put Grub in sda2.










share|improve this question

























  • Thanks for your answer. Yes I have, this leads to grub-install: error: failed to get canonical path of `/cow'. That is why I kind of gave up since there are no important data on the Ubuntu installation anyway. I simply would like to keep the Win7 installation safe without any loss.

    – UserSoUndSo
    Mar 5 at 22:11













  • Just did it. Unfortunately I do not know a lot about this system as it was only my backup system and I usually do not work a lot with linux. I will try to burn the boot repair on a stick and try to repair the grub loader once again. But so far every attempt failed.

    – UserSoUndSo
    Mar 5 at 23:02











  • Please click edit and, using a LiveUSB flashdrive, find the assignments of sda1, sda2, sda3, et cetera, then tell us what you find. Windows 7 could use EFI (which would be the first partition) but most Windows 7 installs are legacy instead (so we have to check).

    – K7AAY
    Mar 5 at 23:46


















1















I messed up the grub loader by accident and all tutorials to install it again failed. Now I can't boot anything so I created an Ubuntu Boot Stick to access all my data. When I tried to reinstall the grub loader I have had several different errors like




  • error no such device

  • failed to get cannonical path of /cow

  • file /grub/i386-pc/normal.mod can not be found

  • the command normal and insmod normal cannot be found


and even more. So I give up and I would like to ask if it is safe to reinstall Ubuntu and keep Win7. Ubuntu offers an option via the boot stick I created to do so, but in the last step there is a warning that the boot sector of one partition will be changed and one partition will be overwritten. I do not care about the installed Ubuntu partition, this one can be overwritten. But the Win7 partition should stay untouched. Is there a way to find out and to be sure nothing of Win7 will be deleted or will the setup be so intelligent on its own?



Edit: As far as I know I put Grub in sda2.










share|improve this question

























  • Thanks for your answer. Yes I have, this leads to grub-install: error: failed to get canonical path of `/cow'. That is why I kind of gave up since there are no important data on the Ubuntu installation anyway. I simply would like to keep the Win7 installation safe without any loss.

    – UserSoUndSo
    Mar 5 at 22:11













  • Just did it. Unfortunately I do not know a lot about this system as it was only my backup system and I usually do not work a lot with linux. I will try to burn the boot repair on a stick and try to repair the grub loader once again. But so far every attempt failed.

    – UserSoUndSo
    Mar 5 at 23:02











  • Please click edit and, using a LiveUSB flashdrive, find the assignments of sda1, sda2, sda3, et cetera, then tell us what you find. Windows 7 could use EFI (which would be the first partition) but most Windows 7 installs are legacy instead (so we have to check).

    – K7AAY
    Mar 5 at 23:46
















1












1








1








I messed up the grub loader by accident and all tutorials to install it again failed. Now I can't boot anything so I created an Ubuntu Boot Stick to access all my data. When I tried to reinstall the grub loader I have had several different errors like




  • error no such device

  • failed to get cannonical path of /cow

  • file /grub/i386-pc/normal.mod can not be found

  • the command normal and insmod normal cannot be found


and even more. So I give up and I would like to ask if it is safe to reinstall Ubuntu and keep Win7. Ubuntu offers an option via the boot stick I created to do so, but in the last step there is a warning that the boot sector of one partition will be changed and one partition will be overwritten. I do not care about the installed Ubuntu partition, this one can be overwritten. But the Win7 partition should stay untouched. Is there a way to find out and to be sure nothing of Win7 will be deleted or will the setup be so intelligent on its own?



Edit: As far as I know I put Grub in sda2.










share|improve this question
















I messed up the grub loader by accident and all tutorials to install it again failed. Now I can't boot anything so I created an Ubuntu Boot Stick to access all my data. When I tried to reinstall the grub loader I have had several different errors like




  • error no such device

  • failed to get cannonical path of /cow

  • file /grub/i386-pc/normal.mod can not be found

  • the command normal and insmod normal cannot be found


and even more. So I give up and I would like to ask if it is safe to reinstall Ubuntu and keep Win7. Ubuntu offers an option via the boot stick I created to do so, but in the last step there is a warning that the boot sector of one partition will be changed and one partition will be overwritten. I do not care about the installed Ubuntu partition, this one can be overwritten. But the Win7 partition should stay untouched. Is there a way to find out and to be sure nothing of Win7 will be deleted or will the setup be so intelligent on its own?



Edit: As far as I know I put Grub in sda2.







linux ubuntu boot dual-boot grub






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Mar 5 at 22:30







UserSoUndSo

















asked Mar 5 at 21:41









UserSoUndSoUserSoUndSo

62




62













  • Thanks for your answer. Yes I have, this leads to grub-install: error: failed to get canonical path of `/cow'. That is why I kind of gave up since there are no important data on the Ubuntu installation anyway. I simply would like to keep the Win7 installation safe without any loss.

    – UserSoUndSo
    Mar 5 at 22:11













  • Just did it. Unfortunately I do not know a lot about this system as it was only my backup system and I usually do not work a lot with linux. I will try to burn the boot repair on a stick and try to repair the grub loader once again. But so far every attempt failed.

    – UserSoUndSo
    Mar 5 at 23:02











  • Please click edit and, using a LiveUSB flashdrive, find the assignments of sda1, sda2, sda3, et cetera, then tell us what you find. Windows 7 could use EFI (which would be the first partition) but most Windows 7 installs are legacy instead (so we have to check).

    – K7AAY
    Mar 5 at 23:46





















  • Thanks for your answer. Yes I have, this leads to grub-install: error: failed to get canonical path of `/cow'. That is why I kind of gave up since there are no important data on the Ubuntu installation anyway. I simply would like to keep the Win7 installation safe without any loss.

    – UserSoUndSo
    Mar 5 at 22:11













  • Just did it. Unfortunately I do not know a lot about this system as it was only my backup system and I usually do not work a lot with linux. I will try to burn the boot repair on a stick and try to repair the grub loader once again. But so far every attempt failed.

    – UserSoUndSo
    Mar 5 at 23:02











  • Please click edit and, using a LiveUSB flashdrive, find the assignments of sda1, sda2, sda3, et cetera, then tell us what you find. Windows 7 could use EFI (which would be the first partition) but most Windows 7 installs are legacy instead (so we have to check).

    – K7AAY
    Mar 5 at 23:46



















Thanks for your answer. Yes I have, this leads to grub-install: error: failed to get canonical path of `/cow'. That is why I kind of gave up since there are no important data on the Ubuntu installation anyway. I simply would like to keep the Win7 installation safe without any loss.

– UserSoUndSo
Mar 5 at 22:11







Thanks for your answer. Yes I have, this leads to grub-install: error: failed to get canonical path of `/cow'. That is why I kind of gave up since there are no important data on the Ubuntu installation anyway. I simply would like to keep the Win7 installation safe without any loss.

– UserSoUndSo
Mar 5 at 22:11















Just did it. Unfortunately I do not know a lot about this system as it was only my backup system and I usually do not work a lot with linux. I will try to burn the boot repair on a stick and try to repair the grub loader once again. But so far every attempt failed.

– UserSoUndSo
Mar 5 at 23:02





Just did it. Unfortunately I do not know a lot about this system as it was only my backup system and I usually do not work a lot with linux. I will try to burn the boot repair on a stick and try to repair the grub loader once again. But so far every attempt failed.

– UserSoUndSo
Mar 5 at 23:02













Please click edit and, using a LiveUSB flashdrive, find the assignments of sda1, sda2, sda3, et cetera, then tell us what you find. Windows 7 could use EFI (which would be the first partition) but most Windows 7 installs are legacy instead (so we have to check).

– K7AAY
Mar 5 at 23:46







Please click edit and, using a LiveUSB flashdrive, find the assignments of sda1, sda2, sda3, et cetera, then tell us what you find. Windows 7 could use EFI (which would be the first partition) but most Windows 7 installs are legacy instead (so we have to check).

– K7AAY
Mar 5 at 23:46












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