mount command fails On this line of
image_install_grub stage. Here is the error message:
mount: wrong fs type, bad option, bad superblock on /dev/mapper/loop0p2, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so
dmesg | tail shows following output:
[313627.114216] loop: Write error at byte offset 2189422592, length 4096. [313627.114314] loop: Write error at byte offset 2516066304, length 4096. [313627.114432] loop: Write error at byte offset 2516168704, length 4096. [313628.825294] JBD2: recovery failed [313628.825304] EXT4-fs (dm-1): error loading journal
Still I can mount
/dev/mapper/loop0p2, but in read-only mode:
sudo mount -ro,noload /dev/mapper/loop0p2 /mnt/stemcells/openstack/kvm/ubuntu/work/work/mnt. And it does has files for root system.
At this moment I consider that problem is in how loopback devise is set up in this code of
image_install_grub are the last stages for building stemcell before its packaging. This stage go sequently.
image_create should create loopback device and
rsync files from chroot directory (link to sources).
image_install_grub installs grub to an existing loopback device (link to sources).