Insmod error in grub: symbol not found:grub_realidt
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
asked Apr 24 '13 at 10:07
stranger_anon
1522517
add a comment |
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
asked Apr 24 '13 at 10:07
stranger_anon
1522517
what is shown when you dols (hd0,msdos5)/andls (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
add a comment |
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
asked Apr 24 '13 at 10:07
stranger_anon
1522517
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
boot grub2 dual-boot grubrescue
asked Apr 24 '13 at 10:07
stranger_anon
1522517
asked Apr 24 '13 at 10:07
stranger_anon
1522517
asked Apr 24 '13 at 10:07
stranger_anon
1522517
asked Apr 24 '13 at 10:07
stranger_anon
1522517
asked Apr 24 '13 at 10:07
stranger_anon
1522517
1522517
what is shown when you dols (hd0,msdos5)/andls (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
add a comment |
what is shown when you dols (hd0,msdos5)/andls (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
add a comment |
1 Answer
1
active
oldest
votes
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
grubthen do aset prefix="(hd0,msdos5)/grub"where 5 needs to be changed to correct number.
If you see
bootthen 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.
answered Apr 24 '13 at 10:39
Rinzwind
204k28388523
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
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
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
grubthen do aset prefix="(hd0,msdos5)/grub"where 5 needs to be changed to correct number.
If you see
bootthen 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.
answered Apr 24 '13 at 10:39
Rinzwind
204k28388523
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
add a comment |
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
grubthen do aset prefix="(hd0,msdos5)/grub"where 5 needs to be changed to correct number.
If you see
bootthen 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.
answered Apr 24 '13 at 10:39
Rinzwind
204k28388523
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
add a comment |
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
grubthen do aset prefix="(hd0,msdos5)/grub"where 5 needs to be changed to correct number.
If you see
bootthen 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.
answered Apr 24 '13 at 10:39
Rinzwind
204k28388523
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
grubthen do aset prefix="(hd0,msdos5)/grub"where 5 needs to be changed to correct number.
If you see
bootthen 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.
answered Apr 24 '13 at 10:39
Rinzwind
204k28388523
answered Apr 24 '13 at 10:39
Rinzwind
204k28388523
answered Apr 24 '13 at 10:39
Rinzwind
204k28388523
answered Apr 24 '13 at 10:39
Rinzwind
204k28388523
204k28388523
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
add a comment |
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
add a comment |
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what is shown when you do
ls (hd0,msdos5)/andls (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