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Re: Restore backup to KVM




On 27/09/17 14:01, solitone wrote:
Although mkfs had warned me, I mistakenly formatted the entire file, like this:

$ sudo mkfs.ext4 restore.img

Now I've redone it the right way, using a loop device, and I'll see how it goes.

It's a struggle! Now that I partitioned the image file, it sees /dev/sda1. There was an inconsistency between the filesystem size and the physical size of the device though, that I repaired with resize2fs, specifying the physical number of blocks.

Now it finally mounts /dev/sda1, but on /root rather than on /, as it did before with the unpartitioned image file (/dev/sda):

======================================================================
Begin: Will now check root file system ... fsck from util-linux 2.29.2
[/sbin/fsck.ext4 (1) -- /dev/sda1] fsck.ext4 -a -C0 /dev/sda1
/dev/sda1: clean, 434181/5898240 files, 15163981/23592711 blocks
done.
[ 33.088863] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
done.
Begin: Running /scripts/local-bottom ... done.
Begin: Running /scripts/init-bottom ... mount: mounting /dev on /root/dev failed: No such file or directory
mount: mounting /dev on /root/dev failed: No such file or directory
done.
mount: mounting /run on /root/run failed: No such file or directory
run-init: opening console: No such file or directory
Target filesystem doesn't have requested /bin/bash.
run-init: opening console: No such file or directory
run-init: opening console: No such file or directory
run-init: opening console: No such file or directory
run-init: opening console: No such file or directory
run-init: opening console: No such file or directory
No init found. Try passing init= bootarg.


BusyBox v1.22.1 (Debian 1:1.22.0-19+b3) built-in shell (ash)
Enter 'help' for a list of built-in commands.

(initramfs) df
Filesystem           1K-blocks      Used Available Use% Mounted on
udev                     46448         0     46448   0% /dev
tmpfs                    11684        60     11624   1% /run
/dev/sda1             92365508  58650588  28980000  67% /root
(initramfs)
======================================================================