GitLab

Make the progressbar show up only once instead of 4 times

Just unlinking the image prevents remounting the target file system in
read-only mode as long as the image remains mounted.

they were added by mistake

Otherwise pipelines such as 'wget http://to/foo.iso | uniso' might
report 'pipe error' as the file is not fully consumed.

the use of \+ is a GNU BRE extension that is not supported in musl.

the use of \+ is a GNU BRE extension that is not supported in musl.

the use of \+ is a GNU extension that is not supported in musl.

Running syslinux on a device that is mounted causes undefined behaviour.
We have been 'lucky' up til now but it is known that this can corrupt
syslinux.cfg.

This should fix #3137

ref #2862

add support for setup-alpine from within a container.

when running in lxc we skip config of:
 - keymap
 - hostname
 - ntp
 - disk
 - apk cache
 - lbu

ref #3057

this makes it work in lxcontainers.