Hello everyone,
I was running a VM on a headless ubuntu server. The guest OS was SBS2011. There are issues with my NAS dying which then hung up the VM (backup drive is mounted on the server and inbound into the vm) and because of other circumstances I was unable to do a graceful shutdown of the OS, first I tried saving the state but after realizing that it also hanging up I decided to cancel the VBoxManage command and wanted to do turn it off using shutdown (not acpi, i tried that before and also didnt work) but it was already shut down. THen i performed a host reboot which then led to the VBox telling me the header was corrupted. I do have a backup of the VDI but its like 3 months old. It is the same size as the actual VM (I did not issue any changes to the dynamic max filesize). I read about being able to recover the header from a new VM but can I just copy the header of the old backup? I attached both headers and can upload the first 2098176 (or whatever) bytes of both images. How do I know if the rest of the VDI is corrupted? Thanks in advance,
Nico
Corrupted VDI header / corrupted VDI
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- Posts: 2
- Joined: 3. Jan 2018, 17:03
Corrupted VDI header / corrupted VDI
- Attachments
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- headers.zip
- (442 Bytes) Downloaded 7 times
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- Site Moderator
- Posts: 39134
- Joined: 4. Sep 2008, 17:09
- Primary OS: MS Windows 10
- VBox Version: PUEL
- Guest OSses: Mostly XP
Re: Corrupted VDI header / corrupted VDI
Moved to Linux Hosts.
Have you tried running the latest CloneVDI on your VDI? Header repair is automated now. Copy the VDI to a Windows PC for repair, or run CloneVDI on a Linux host under Wine.
The files you provided are quite useless I'm afraid. I don't know what I'm supposed to tell from the first 72 bytes.
Have you tried running the latest CloneVDI on your VDI? Header repair is automated now. Copy the VDI to a Windows PC for repair, or run CloneVDI on a Linux host under Wine.
The files you provided are quite useless I'm afraid. I don't know what I'm supposed to tell from the first 72 bytes.
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- Posts: 2
- Joined: 3. Jan 2018, 17:03
Re: Corrupted VDI header / corrupted VDI
I will try and do that. Heres the bytes until the 00000 start (cant upload because size restriction?) :
backup
corrupted
backup
Code: Select all
00000000 3C 3C 3C 20 4F 72 61 63 6C 65 20 56 4D 20 56 69 <<< Oracle VM Vi
00000010 72 74 75 61 6C 42 6F 78 20 44 69 73 6B 20 49 6D rtualBox Disk Im
00000020 61 67 65 20 3E 3E 3E 0A 00 00 00 00 00 00 00 00 age >>>.........
00000030 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000040 7F 10 DA BE 01 00 01 00 90 01 00 00 01 00 00 00 ................
00000050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000060 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000070 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000080 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000090 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
000000A0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
000000B0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
000000C0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
000000D0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
000000E0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
000000F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000100 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000110 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000120 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000130 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000140 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000150 00 00 00 00 00 00 10 00 00 00 40 00 00 00 00 00 ..........@.....
00000160 00 00 00 00 00 00 00 00 00 02 00 00 00 00 00 00 ................
00000170 00 00 00 7C 92 00 00 00 00 00 10 00 00 00 00 00 ...|............
00000180 C0 27 09 00 78 CF 07 00 39 A0 AC D5 3C E0 AA 44 .'..x...9...<..D
00000190 99 D7 5B 6F E5 F3 6E F8 34 8F C5 5B DC 8B 46 4F ..[o..n.4..[..FO
000001A0 B2 3D 41 8B D8 51 4B 30 00 00 00 00 00 00 00 00 .=A..QK0........
000001B0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
000001C0 00 00 00 00 00 00 00 00 C9 2A 01 00 FF 00 00 00 .........*......
000001D0 3F 00 00 00 00 02 00 00 00 00 00 00 00 00 00 00 ?...............
000001E0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
000001F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Code: Select all
00000000 3C 3C 3C 20 4F 72 61 63 6C 65 20 56 4D 20 56 69 <<< Oracle VM Vi
00000010 72 74 75 61 6C 42 6F 78 20 44 69 73 6B 20 49 6D rtualBox Disk Im
00000020 61 67 65 20 3E 3E 3E 0A 00 00 00 00 00 00 00 00 age >>>.........
00000030 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00000040 7F 10 DA BE 01 00 01 00 90 01 00 00 01 00 00 00 ................
00000050 20 00 00 D8 F0 7F 00 00 90 00 00 00 00 00 00 00 ...............
00000060 B0 5E 9F 00 00 00 00 00 50 B1 55 DB F0 7F 00 00 .^......P.U.....
00000070 30 7D 01 D8 F0 7F 00 00 00 C6 3F E6 F0 7F 00 00 0}........?.....
00000080 98 D0 00 FF F0 7F 00 00 00 01 55 DB F0 7F 00 00 ..........U.....
00000090 90 00 00 00 00 00 00 00 B0 C0 00 E0 F0 7F 00 00 ................
000000A0 30 7D 01 D8 F0 7F 00 00 30 C6 3F E6 F0 7F 00 00 0}......0.?.....
000000B0 77 28 7B E6 F0 7F 00 00 00 00 00 00 00 00 00 00 w({.............
000000C0 60 C6 3F E6 F0 7F 00 00 50 A6 43 DB F0 7F 00 00 `.?.....P.C.....
000000D0 80 0D 6A 6A ED 7F 00 00 50 C6 3F E6 F0 7F 00 00 ..jj....P.?.....
000000E0 16 33 8F FF F0 7F 00 00 00 00 00 00 00 00 00 00 .3..............
000000F0 50 A5 43 DB F0 7F 00 00 80 A5 43 DB F0 7F 00 00 P.C.......C.....
00000100 05 00 00 00 00 00 00 00 D0 C6 3F E6 F0 7F 00 00 ..........?.....
00000110 D0 4F 04 FF F0 7F 00 00 90 C6 3F E6 F0 7F 00 00 .O........?.....
00000120 21 75 8D E6 F0 7F 00 00 50 A6 43 DB F0 7F 00 00 !u......P.C.....
00000130 E0 C6 3F E6 F0 7F 00 00 D0 C6 3F E6 F0 7F 00 00 ..?.......?.....
00000140 00 4F B2 69 43 7F 43 E2 00 00 00 00 00 00 00 00 .O.iC.C.........
00000150 20 A5 43 DB F0 7F 00 00 00 00 00 00 00 00 00 00 .C.............
00000160 E8 A0 43 DB F0 7F 00 00 30 7D 01 D8 F0 7F 00 00 ..C.....0}......
00000170 D0 9B 43 DB F0 7F 00 00 00 C7 3F E6 F0 7F 00 00 ..C.......?.....
00000180 2E 3F 59 BA F0 7F 00 00 80 0D 6A 6A ED 7F 00 00 .?Y.......jj....
00000190 00 4F B2 69 43 7F 43 E2 7A D0 C4 69 80 9B C5 4B .O.iC.C.z..i...K
000001A0 C0 A2 43 DB F0 7F 00 00 70 C7 3F E6 F0 7F 00 00 ..C.....p.?.....
000001B0 E6 92 06 C0 F0 7F 00 00 00 00 00 00 00 00 00 00 ................
000001C0 00 00 00 00 00 00 00 00 C9 2A 01 00 FF 00 00 00 .........*......
000001D0 3F 00 00 00 00 02 00 00 00 00 00 00 00 00 00 00 ?...............
000001E0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
000001F0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Last edited by socratis on 3. Jan 2018, 22:13, edited 2 times in total.
Reason: Removed unnecessary verbatim quote of the whole previous message.
Reason: Removed unnecessary verbatim quote of the whole previous message.