Insmod error in grub: symbol not found:grub_realidt Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern)grub “unknown filesystem” error on booterror : hd0 out of disk grub rescueunknown filesystem, grub rescueNot booting into Ubuntu 14.10In grub rescue, I cannot insmod normalGrub rescue after udpating to Ubuntu 16.04Grub rescue - error: unknown filesystem…tried everythingwrong start up diskubuntu 14.04 error “attempt to read outside of disk 'hd0'”

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Insmod error in grub: symbol not found:grub_realidt



Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern)grub “unknown filesystem” error on booterror : hd0 out of disk grub rescueunknown filesystem, grub rescueNot booting into Ubuntu 14.10In grub rescue, I cannot insmod normalGrub rescue after udpating to Ubuntu 16.04Grub rescue - error: unknown filesystem…tried everythingwrong start up diskubuntu 14.04 error “attempt to read outside of disk 'hd0'”



.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;








6















I have a dual boot PC with Windows 7 and Ubuntu. I upgraded from 12.04 to 12.10 and then to 13.04 and since then I have not been able to boot because the PC goes into grub rescue with the error "File not found".



I have tried the following steps:



set prefix=(hd0,msdos5)/usr/lib/grub/i386-pc
set root=(hd0,msdos5)
insmod linux


I get error:



symbol not found : 'grub_realidt'.


if I do insmod normal, I get error



symbol not found : 'grub_disk_dev_list'


I have two partitions containing linux file system: (hd0,msdos5) and (hd0,msdos6). They were mountpoints for / and /boot respectively.



I have searched for this error, and found some "solved" threads. But all of them are using Live USB to get in grub prompt. I don't have access to one, and was hoping to be able to solve the issue without a flash drive.



Please help...
Thanks in advance.










share|improve this question














bumped to the homepage by Community 16 mins ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.















  • what is shown when you do ls (hd0,msdos5)/ and ls (hd0,msdos6)/?

    – Rinzwind
    Apr 24 '13 at 10:33











  • ls (hd0,msdos5)/ shows /boot /home vmlinuz initrd.img ls (hd0,msdos6)/ shows /grub lost+found and many generic image files

    – stranger_anon
    Apr 24 '13 at 10:48


















6















I have a dual boot PC with Windows 7 and Ubuntu. I upgraded from 12.04 to 12.10 and then to 13.04 and since then I have not been able to boot because the PC goes into grub rescue with the error "File not found".



I have tried the following steps:



set prefix=(hd0,msdos5)/usr/lib/grub/i386-pc
set root=(hd0,msdos5)
insmod linux


I get error:



symbol not found : 'grub_realidt'.


if I do insmod normal, I get error



symbol not found : 'grub_disk_dev_list'


I have two partitions containing linux file system: (hd0,msdos5) and (hd0,msdos6). They were mountpoints for / and /boot respectively.



I have searched for this error, and found some "solved" threads. But all of them are using Live USB to get in grub prompt. I don't have access to one, and was hoping to be able to solve the issue without a flash drive.



Please help...
Thanks in advance.










share|improve this question














bumped to the homepage by Community 16 mins ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.















  • what is shown when you do ls (hd0,msdos5)/ and ls (hd0,msdos6)/?

    – Rinzwind
    Apr 24 '13 at 10:33











  • ls (hd0,msdos5)/ shows /boot /home vmlinuz initrd.img ls (hd0,msdos6)/ shows /grub lost+found and many generic image files

    – stranger_anon
    Apr 24 '13 at 10:48














6












6








6








I have a dual boot PC with Windows 7 and Ubuntu. I upgraded from 12.04 to 12.10 and then to 13.04 and since then I have not been able to boot because the PC goes into grub rescue with the error "File not found".



I have tried the following steps:



set prefix=(hd0,msdos5)/usr/lib/grub/i386-pc
set root=(hd0,msdos5)
insmod linux


I get error:



symbol not found : 'grub_realidt'.


if I do insmod normal, I get error



symbol not found : 'grub_disk_dev_list'


I have two partitions containing linux file system: (hd0,msdos5) and (hd0,msdos6). They were mountpoints for / and /boot respectively.



I have searched for this error, and found some "solved" threads. But all of them are using Live USB to get in grub prompt. I don't have access to one, and was hoping to be able to solve the issue without a flash drive.



Please help...
Thanks in advance.










share|improve this question














I have a dual boot PC with Windows 7 and Ubuntu. I upgraded from 12.04 to 12.10 and then to 13.04 and since then I have not been able to boot because the PC goes into grub rescue with the error "File not found".



I have tried the following steps:



set prefix=(hd0,msdos5)/usr/lib/grub/i386-pc
set root=(hd0,msdos5)
insmod linux


I get error:



symbol not found : 'grub_realidt'.


if I do insmod normal, I get error



symbol not found : 'grub_disk_dev_list'


I have two partitions containing linux file system: (hd0,msdos5) and (hd0,msdos6). They were mountpoints for / and /boot respectively.



I have searched for this error, and found some "solved" threads. But all of them are using Live USB to get in grub prompt. I don't have access to one, and was hoping to be able to solve the issue without a flash drive.



Please help...
Thanks in advance.







boot grub2 dual-boot grubrescue






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Apr 24 '13 at 10:07









stranger_anonstranger_anon

1522518




1522518





bumped to the homepage by Community 16 mins ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.







bumped to the homepage by Community 16 mins ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.














  • what is shown when you do ls (hd0,msdos5)/ and ls (hd0,msdos6)/?

    – Rinzwind
    Apr 24 '13 at 10:33











  • ls (hd0,msdos5)/ shows /boot /home vmlinuz initrd.img ls (hd0,msdos6)/ shows /grub lost+found and many generic image files

    – stranger_anon
    Apr 24 '13 at 10:48


















  • what is shown when you do ls (hd0,msdos5)/ and ls (hd0,msdos6)/?

    – Rinzwind
    Apr 24 '13 at 10:33











  • ls (hd0,msdos5)/ shows /boot /home vmlinuz initrd.img ls (hd0,msdos6)/ shows /grub lost+found and many generic image files

    – stranger_anon
    Apr 24 '13 at 10:48

















what is shown when you do ls (hd0,msdos5)/ and ls (hd0,msdos6)/?

– Rinzwind
Apr 24 '13 at 10:33





what is shown when you do ls (hd0,msdos5)/ and ls (hd0,msdos6)/?

– Rinzwind
Apr 24 '13 at 10:33













ls (hd0,msdos5)/ shows /boot /home vmlinuz initrd.img ls (hd0,msdos6)/ shows /grub lost+found and many generic image files

– stranger_anon
Apr 24 '13 at 10:48






ls (hd0,msdos5)/ shows /boot /home vmlinuz initrd.img ls (hd0,msdos6)/ shows /grub lost+found and many generic image files

– stranger_anon
Apr 24 '13 at 10:48











1 Answer
1






active

oldest

votes


















0














From Troubleshooting Preparation it should be possible to fix this from command line. But the commands I found are a bit different than you have in your question. So...




  • Do a



    ls (hd0,msdos5)/ 
    ls (hd0,msdos6)/


  • If you see grub then do a set prefix="(hd0,msdos5)/grub" where 5 needs to be changed to correct number.



  • If you see boot then do a



    set prefix="(hd0,msdos5)/boot/grub"
    set root="(hd0,msdos5)"


    where 5 needs to be changed to correct number.




  • After changing prefix you need to do a



    insmod normal
    normal


    and reboot.







share|improve this answer























  • set prefix="(hd0,msdos5)/grub" doesn't work since my *.mod files are not present in this directory for some reason. So, insmod gives file not found error.

    – stranger_anon
    Apr 24 '13 at 10:50











  • This is the only method I know and I am afraid you will need a live cd...

    – Rinzwind
    Apr 24 '13 at 11:32











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1 Answer
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active

oldest

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1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









0














From Troubleshooting Preparation it should be possible to fix this from command line. But the commands I found are a bit different than you have in your question. So...




  • Do a



    ls (hd0,msdos5)/ 
    ls (hd0,msdos6)/


  • If you see grub then do a set prefix="(hd0,msdos5)/grub" where 5 needs to be changed to correct number.



  • If you see boot then do a



    set prefix="(hd0,msdos5)/boot/grub"
    set root="(hd0,msdos5)"


    where 5 needs to be changed to correct number.




  • After changing prefix you need to do a



    insmod normal
    normal


    and reboot.







share|improve this answer























  • set prefix="(hd0,msdos5)/grub" doesn't work since my *.mod files are not present in this directory for some reason. So, insmod gives file not found error.

    – stranger_anon
    Apr 24 '13 at 10:50











  • This is the only method I know and I am afraid you will need a live cd...

    – Rinzwind
    Apr 24 '13 at 11:32















0














From Troubleshooting Preparation it should be possible to fix this from command line. But the commands I found are a bit different than you have in your question. So...




  • Do a



    ls (hd0,msdos5)/ 
    ls (hd0,msdos6)/


  • If you see grub then do a set prefix="(hd0,msdos5)/grub" where 5 needs to be changed to correct number.



  • If you see boot then do a



    set prefix="(hd0,msdos5)/boot/grub"
    set root="(hd0,msdos5)"


    where 5 needs to be changed to correct number.




  • After changing prefix you need to do a



    insmod normal
    normal


    and reboot.







share|improve this answer























  • set prefix="(hd0,msdos5)/grub" doesn't work since my *.mod files are not present in this directory for some reason. So, insmod gives file not found error.

    – stranger_anon
    Apr 24 '13 at 10:50











  • This is the only method I know and I am afraid you will need a live cd...

    – Rinzwind
    Apr 24 '13 at 11:32













0












0








0







From Troubleshooting Preparation it should be possible to fix this from command line. But the commands I found are a bit different than you have in your question. So...




  • Do a



    ls (hd0,msdos5)/ 
    ls (hd0,msdos6)/


  • If you see grub then do a set prefix="(hd0,msdos5)/grub" where 5 needs to be changed to correct number.



  • If you see boot then do a



    set prefix="(hd0,msdos5)/boot/grub"
    set root="(hd0,msdos5)"


    where 5 needs to be changed to correct number.




  • After changing prefix you need to do a



    insmod normal
    normal


    and reboot.







share|improve this answer













From Troubleshooting Preparation it should be possible to fix this from command line. But the commands I found are a bit different than you have in your question. So...




  • Do a



    ls (hd0,msdos5)/ 
    ls (hd0,msdos6)/


  • If you see grub then do a set prefix="(hd0,msdos5)/grub" where 5 needs to be changed to correct number.



  • If you see boot then do a



    set prefix="(hd0,msdos5)/boot/grub"
    set root="(hd0,msdos5)"


    where 5 needs to be changed to correct number.




  • After changing prefix you need to do a



    insmod normal
    normal


    and reboot.








share|improve this answer












share|improve this answer



share|improve this answer










answered Apr 24 '13 at 10:39









RinzwindRinzwind

211k28406541




211k28406541












  • set prefix="(hd0,msdos5)/grub" doesn't work since my *.mod files are not present in this directory for some reason. So, insmod gives file not found error.

    – stranger_anon
    Apr 24 '13 at 10:50











  • This is the only method I know and I am afraid you will need a live cd...

    – Rinzwind
    Apr 24 '13 at 11:32

















  • set prefix="(hd0,msdos5)/grub" doesn't work since my *.mod files are not present in this directory for some reason. So, insmod gives file not found error.

    – stranger_anon
    Apr 24 '13 at 10:50











  • This is the only method I know and I am afraid you will need a live cd...

    – Rinzwind
    Apr 24 '13 at 11:32
















set prefix="(hd0,msdos5)/grub" doesn't work since my *.mod files are not present in this directory for some reason. So, insmod gives file not found error.

– stranger_anon
Apr 24 '13 at 10:50





set prefix="(hd0,msdos5)/grub" doesn't work since my *.mod files are not present in this directory for some reason. So, insmod gives file not found error.

– stranger_anon
Apr 24 '13 at 10:50













This is the only method I know and I am afraid you will need a live cd...

– Rinzwind
Apr 24 '13 at 11:32





This is the only method I know and I am afraid you will need a live cd...

– Rinzwind
Apr 24 '13 at 11:32

















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