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Fix USB format synchronization #155

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Fix USB format synchronization #155

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10 changes: 7 additions & 3 deletions lib/raw_format.py
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
#!/usr/bin/python3

from subprocess import call
from subprocess import check_call
import sys
import argparse
sys.path.append('/usr/lib/mintstick')
Expand All @@ -9,8 +9,8 @@

def execute(command):
syslog.syslog(str(command))
call(command)
call(["sync"])
check_call(command)
check_call(["sync"])

def raw_format(device_path, fstype, volume_label, uid, gid):

Expand All @@ -36,6 +36,10 @@ def raw_format(device_path, fstype, volume_label, uid, gid):
# If it starts at 0% or 0MB, it's not aligned to MB's and complains
execute(["parted", device_path, "mkpart", "primary", partition_type, "1MiB", "100%"])

# Make sure the kernel and udev see the new partition geometry before formatting it.
execute(["partprobe", device_path])
execute(["udevadm", "settle", "--timeout=10", "--exit-if-exists=%s" % partition_path])

# Call wipefs on the new partitions to avoid problems with old filesystem signatures
execute(["wipefs", "-a", partition_path, "--force"])

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