CentOS 7 hangs at boot

[ozkin]

Hi,

My CentOS 7 machine does not boot and hangs at very early boot stage with last message printed "[ OK ] Reached target Initrd Default Target.".

I was running software updates when the machine accidentally was powered off (cable out, battery 0%). And then next boot didn't go work...

Any ideas how to fix it?

I read somewhere about enabling/disabling SELinux (using rescue mode), but that didn't help.
I saw a couple of similar topics here but no solution was provided.

[gerald_clark]

Boot the old kernel, yum remove the new kernel, and yum update kernel.

[ozkin]

The same happens with old kernel(s).

[ozkin]

Any other idea, suggestion, anyone?

What you think got broken during terminated software update which could cause Linux not to boot?... is it kernel, file system, some modules?

[Cookacoo]

ave you tried booting a live CentOS disk, andchrooting into the driver, and running

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sudo yum upgrade

It should complete the software updates, and hopefully fix the issue.

Hope this helps!

[ozkin]

I tried that but chrooting fails:

sh-4.2# chroot /mnt/sysimage/
chroot: failed to run command /bin/bash: Input/output error

[pwd]

mount /proc /sys /dev to local system before chroot

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mount -o bind /sys /mnt/sysimage/sys

etc.
Then try

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chroot /mnt/sysimage/ /bin/sh

[ozkin]

Mounting /sys, /proc, /dev to local system with the given command did not help.
Same "Input/output error" for /bin/sh.

[cartuchofc]

i have the same issue. Are you fixed?
please help me
Thanks

[avij]

cartuchofc, you may or may not have the same issue. There are multiple ways CentOS 7 can hang at boot. It would have been better to create a new topic and posting enough details about what you're trying to do, what you've tried so far and what the results have been.