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systemd-boot: sync efi filesystem after update

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Since fat32 provides little recovery facilities after a crash,
it can leave the system in an unbootable state, when a crash/outage
happens shortly after an update. To decrease the likelihood of this
event sync the efi filesystem after each update.
This commit is contained in:
Jörg Thalheim 2017-05-09 18:56:26 +01:00
parent 779ae06467
commit e3beb07108
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GPG key ID: CA4106B8D7CC79FA
1 changed files with 7 additions and 0 deletions
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7
nixos/modules/system/boot/loader/systemd-boot/systemd-boot-builder.py
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@ -2,12 +2,15 @@
import argparse
import shutil
import os
import sys
import errno
import subprocess
import glob
import tempfile
import errno
import warnings
import ctypes
libc = ctypes.CDLL("libc.so.6")
def copy_if_not_exists(source, dest):
if not os.path.exists(dest):
@ -145,5 +148,9 @@ def main():
if os.readlink(system_dir(gen)) == args.default_config:
write_loader_conf(gen)
rc = libc.syncfs(os.open("@efiSysMountPoint@", os.O_RDONLY))
if rc != 0:
print("could not sync @efiSysMountPoint@: {}".format(os.strerror(rc)), file=sys.stderr)
if __name__ == '__main__':
main()