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Failed to read extended partition table Error

asked 2016-02-07 09:02:19 -0500

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Hello. I am a Linux newbie and I am running windows 7 in the dual boot setting with Fedora 22. Everything was working fine until recently, when while attempting free-up space for my Linux partition I ended up running Acronis disk manager(windows disk manager utility)to split a logical partition. And reboot took me to “grub-rescue” and I could manage to get into my linux partition from there, but it would NOT let me install grub-install, it would suffer from system-halts. I got into the fedora emergency login mode, after running the “linux.mod” file but I am struck now. When I ran “fdisk –l” in the emergency mode, the results were as follows:

Failed to read extended partition table (offset=4627574784): Invalid argument

Disk /dev/sda: 465.8 GiB, 500107862016 bytes, 976773168 sectors Units: sectors of 1*512 = 512 bytes Sector size (logical/physical): 512 bytes/4096 bytes I/O size (minimum/optimal): 4096 bytes/4096 bytes Disklabel type: dos Disk Identifier: 0xe18b92b6

Device: /dev/sda1, Boot: *, Start: 2048 , End: 206847 , Sectors: 204800 , Size: 100M , Id: 7 , Type: HPFS/NTFS/exFAT

Device: /dev/sda2 , Boot: , Start: 206848 , End: 332597247 , Sectors: 332390400 , Size: 158.5G , Id: 7 , Type: HPFS/NTFS/exFAT

Device: /dev/sda3, Boot: , Start: 895655880 , End: 976771071 , Sectors: 81115192 , Size: 38.7G , Id: 5 , Type: Extended

Device: /dev/sda5 , Boot: , Start: 895662080 , End: 957528963 , Sectors: 61865984 , Size: 29.5G , Id: 7 , Type: HPFS/NTFS/exFAT

Device: /dev/sda6 , Boot: , Start: 959864832 , End: 976771071 , Sectors: 16906240 , Size: 8.1G , Id: 82 , Type: Linux swap/Solaris

I am not sure how to move ahead from here. I think the /dev/sda4 would have been the partition I was trying to split which lead to this. I know it’s the worst practice to not backup the data first but is there still some way I can get out of this without losing my data? And why did this even happen, because I thought I was working with the logical partition. Thanks in advance!!

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answered 2016-02-07 12:55:19 -0500

I think you ended up splitting the GRUB partition but I'm not sure

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Asked: 2016-02-07 09:02:19 -0500

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Last updated: Feb 07 '16