On 10-07-15 09:29 AM, Konrad Rzeszutek Wilk wrote:
and the box still won't boot.
The reason FC6 doesn't boot is there is a userspace tool I believe in the initrd that cares about symlinks when it should not.
It is not just nash. Also multipathd would fail (as it expects the /sys/scsi_host/..<something> in certain directories), and 'lsscsi'. There might be other tools that depend on libsysfs to be affected by this as well.
lsscsi has been "CONFIG_SYSFS_DEPRECATED_V2" tolerant since version 0.21 released 20080710. The current version is 0.23 released 20091201 which will soon be displaced by 0.24 to cope with the most recent breakages.
Writing a user space tool that relies on sysfs structure and contents, stable over the whole lk 2.6 series, is impossible. For a history of my pain with lsscsi see its ChangeLog.
Happily most of my tools are based on an ioctl! SG_IO was a suggestion from Joerg Schilling and has now found its way into most block devices. Now it has a new lease of life in the bsg driver.
Doug Gilbert