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| author | Jörg Thalheim <joerg@thalheim.io> | 2017-05-10 10:31:01 +0100 |
|---|---|---|
| committer | Jörg Thalheim <joerg@thalheim.io> | 2017-05-10 10:32:26 +0100 |
| commit | e33848568d3321c4f042d8352168a8cf006646e6 (patch) | |
| tree | 263e96d2ef85c36c033dc3a26f816964199bbb0e /nixos/modules/system/boot/loader/systemd-boot | |
| parent | 2f6437393b33d6a32a2110d4e63f8420754c7a2f (diff) | |
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systemd-boot: document reasoning behind syncfs(2)
Diffstat (limited to 'nixos/modules/system/boot/loader/systemd-boot')
| -rw-r--r-- | nixos/modules/system/boot/loader/systemd-boot/systemd-boot-builder.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/nixos/modules/system/boot/loader/systemd-boot/systemd-boot-builder.py b/nixos/modules/system/boot/loader/systemd-boot/systemd-boot-builder.py index 804b710f3759..cb2a17f18f48 100644 --- a/nixos/modules/system/boot/loader/systemd-boot/systemd-boot-builder.py +++ b/nixos/modules/system/boot/loader/systemd-boot/systemd-boot-builder.py @@ -148,6 +148,10 @@ def main(): if os.readlink(system_dir(gen)) == args.default_config: write_loader_conf(gen) + # 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. rc = libc.syncfs(os.open("@efiSysMountPoint@", os.O_RDONLY)) if rc != 0: print("could not sync @efiSysMountPoint@: {}".format(os.strerror(rc)), file=sys.stderr) |