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E6220 Boot failure


ianinsane
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My E6220 with HS Sierra was running smoothly, but when I last booted it failed after the bootloader screen.

It said:

header read size 200

Incorrect image signature, expected version 10.7

 

Normal boot and with -s flag does not work. Do you have any idea where to start troubleshooting?

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It looks like it's trying to restart from an hibernation file. Didn't you disable that ?

 

If you run with Enoch, you should be able to recover by booting manually without cache with the following flags and options:

KernelBooter_kexts=Yes -f -v

 

This will only work if you've kept a copy of all the minimum add-on kexts such as FakeSMC in /Extra/extensions.

 

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That warning doesn't matter, it's for kexts patches. You've clearly not installed that file, that's all. Did you nevertheless manage to boot?

 

If not, didn't this issue happen after that you installed a High Sierra update? If so, it's highly likely that you're back with Core Storage applied and Enoch does not support that. You'd therefore have to boot with Clover (i.e. your original HiSie USB installer I presume) and revert the partition to plain old HFS+ before Enoch can boot High Sierra again.

 

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No, I wasn't able to boot...

 

And I didn't install any updates, also diskutil list shows the SSD as Apple_HFS.

 

The first time this problem appeared was after it wouldn't boot due to low battery. I plugged in the power chord and hit f1 to continue booting, like I did so many times back when I was running Yosemite on that machine. This time though, with my 2 month old HS Sierra install, it got me this problem.

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Of course:

 

Spoiler

-bash-3.2# diskutil list
/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *250.1 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                  Apple_HFS Macintosh SSD           249.2 GB   disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

/dev/disk1 (external, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *15.7 GB    disk1
   1:                        EFI EFI                     209.7 MB   disk1s1
   2:                  Apple_HFS OS X Base System 1      15.4 GB    disk1s2

/dev/disk2 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +5.2 MB     disk2

/dev/disk3 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +524.3 KB   disk3

/dev/disk4 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +524.3 KB   disk4

/dev/disk5 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +524.3 KB   disk5

/dev/disk6 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +2.1 MB     disk6

/dev/disk7 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +524.3 KB   disk7

/dev/disk8 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +524.3 KB   disk8

/dev/disk9 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +6.3 MB     disk9

/dev/disk10 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +2.1 MB     disk10

/dev/disk11 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +1.0 MB     disk11

/dev/disk12 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +2.1 MB     disk12

/dev/disk13 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +524.3 KB   disk13

/dev/disk14 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +524.3 KB   disk14

/dev/disk15 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +1.0 MB     disk15

/dev/disk16 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +6.3 MB     disk16

/dev/disk17 (disk image):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            untitled               +524.3 KB   disk17

-bash-3.2#

 

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Check if "sleepimage" file exists on the "Macintosh" SSD partition:

ls -la /Volumes/Macintosh/var/vm

 

If it does, remove it:

rm -f /Volumes/Macintosh/var/vm/sleepimage

 

You may then try to rebuild the cache:

touch -f /Volumes/Macintosh/System/Library/Extensions
/Volumes/Macintosh/usr/sbin/kextcache -Boot -U /Volumes/Macintosh -k /Volumes/Macintosh/System/Library/Kernels/kernel

 

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The first command triggers this response:

 

ls: /Volumes/Macintosh/var/vm/: no such file or directory

 

Still tried to rebuild the cache and got "no such file or directory" for the first two directories, "read-only file system" for all the flags and "not a directory" for the last directory...

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