I'm working on an updated sys-boot/raspberrypi-firmware ebuild, and found that portage reproducibly fails when attempting to write the firmware data files to the RPi /boot partition which is, of necessity, FAT32-formatted. What actually happens is that the 'merge' stage progresses until the first file is copied to /boot, at which point the process fails with "copy <src> -> <dest>#new failed", and a file named <dest>#new ('bcm2709-rpi-2-b.dtb#new ', in this case) is left in the destination filesystem. Note that the '#new' has been added by portage. The problem is that the pym/portage/util/movefile.py file unconditionally calls _apply_stat when the source and destination filesystems differ, and the implementation of this is simply: def _apply_stat(src_stat, dest): _os.chown(dest, src_stat.st_uid, src_stat.st_gid) _os.chmod(dest, stat.S_IMODE(src_stat.st_mode)) On FAT32, however, from shell `chmod` silently fails whilst `chown` fails with 'Operation not permitted'. I do note, however, that if the filesystem is mounted with 'root:root' ownership and 'chown root:root x' is executed, then this does succeed - so there may be some userpriv-type issue here? By changing movefile.py as follows: def _apply_stat(src_stat, dest): try: _os.chmod(dest, stat.S_IMODE(src_stat.st_mode)) except SystemExit as e: raise except Exception as e: writemsg("!!! %s\n" % _('chmod %(dest)s failed.') % {"dest": dest}, noiselevel=-1) writemsg("!!! %s\n" % (e,), noiselevel=-1) return None try: _os.chown(dest, src_stat.st_uid, src_stat.st_gid) except SystemExit as e: raise except Exception as e: writemsg("!!! %s\n" % _('chown %(dest)s failed.') % {"dest": dest}, noiselevel=-1) writemsg("!!! %s\n" % (e,), noiselevel=-1) return None ... the result is then: ... >>> /lib/modules/4.1.6-v7+/modules.alias >>> /lib/modules/4.1.6-v7+/modules.alias.bin >>> /lib/modules/4.1.6-v7+/modules.devname >>> /lib/modules/4.1.6-v7+/modules.dep >>> /lib/modules/4.1.6-v7+/modules.order >>> /lib/modules/4.1.6-v7+/modules.symbols --- /boot/ !!! chown /boot/bcm2709-rpi-2-b.dtb#new failed. !!! [Errno 1] Operation not permitted: '/boot/bcm2709-rpi-2-b.dtb#new' >>> /boot/bcm2709-rpi-2-b.dtb !!! chown /boot/config.txt#new failed. !!! [Errno 1] Operation not permitted: '/boot/config.txt#new' >>> /boot/config.txt !!! chown /boot/start_x.elf#new failed. !!! [Errno 1] Operation not permitted: '/boot/start_x.elf#new' >>> /boot/start_x.elf !!! chown /boot/start.elf#new failed. !!! [Errno 1] Operation not permitted: '/boot/start.elf#new' >>> /boot/start.elf !!! chown /boot/bcm2708-rpi-cm.dtb#new failed. !!! [Errno 1] Operation not permitted: '/boot/bcm2708-rpi-cm.dtb#new' >>> /boot/bcm2708-rpi-cm.dtb !!! chown /boot/bootcode.bin#new failed. !!! [Errno 1] Operation not permitted: '/boot/bootcode.bin#new' >>> /boot/bootcode.bin !!! chown /boot/start_db.elf#new failed. !!! [Errno 1] Operation not permitted: '/boot/start_db.elf#new' >>> /boot/start_db.elf !!! chown /boot/start_cd.elf#new failed. !!! [Errno 1] Operation not permitted: '/boot/start_cd.elf#new' >>> /boot/start_cd.elf !!! chown /boot/System.map-4.1.6-v7+#new failed. !!! [Errno 1] Operation not permitted: '/boot/System.map-4.1.6-v7+#new' >>> /boot/System.map-4.1.6-v7+ !!! chown /boot/fixup.dat#new failed. !!! [Errno 1] Operation not permitted: '/boot/fixup.dat#new' >>> /boot/fixup.dat !!! chown /boot/bcm2708-rpi-b.dtb#new failed. !!! [Errno 1] Operation not permitted: '/boot/bcm2708-rpi-b.dtb#new' >>> /boot/bcm2708-rpi-b.dtb !!! chown /boot/fixup_db.dat#new failed. !!! [Errno 1] Operation not permitted: '/boot/fixup_db.dat#new' >>> /boot/fixup_db.dat !!! chown /boot/fixup_cd.dat#new failed. !!! [Errno 1] Operation not permitted: '/boot/fixup_cd.dat#new' >>> /boot/fixup_cd.dat Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/portage/dbapi/_MergeProcess.py", line 235, in _spawn prev_mtimes=self.prev_mtimes, counter=counter) File "/usr/lib/python2.7/site-packages/portage/dbapi/vartree.py", line 5006, in merge counter=counter) File "/usr/lib/python2.7/site-packages/portage/dbapi/vartree.py", line 4165, in treewalk rval = self._merge_contents(srcroot, destroot, cfgfiledict) File "/usr/lib/python2.7/site-packages/portage/dbapi/vartree.py", line 4445, in _merge_contents self.settings["EPREFIX"].lstrip(os.sep), cfgfiledict, mymtime): File "/usr/lib/python2.7/site-packages/portage/dbapi/vartree.py", line 4800, in mergeme os.chown(mydest, mystat[4], mystat[5]) File "/usr/lib/python2.7/site-packages/portage/__init__.py", line 259, in __call__ rval = self._func(*wrapped_args, **wrapped_kwargs) OSError: [Errno 1] Operation not permitted: '/boot/overlays' ... so it appears that directory creation is likewise affected.
