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Chroot: add mount_rootfs()

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Signed-off-by: InsanePrawn <insane.prawny@gmail.com>
This commit is contained in:
InsanePrawn 2021-10-25 20:58:04 +02:00
parent 0884cb2efd
commit efbecb3e40
1 changed files with 16 additions and 0 deletions
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16
chroot.py
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@ -395,6 +395,22 @@ class Chroot:
results[pkg] = self.run_cmd(f'{cmd} {pkg}')
return results
def mount_rootfs(self, source_path: str, fs_type: str = None, options: list[str] = ['loop'], allow_overlay: bool = False):
if self.active:
raise Exception(f'{self.name}: Chroot is marked as active, not mounting a rootfs over it.')
if not os.path.exists(source_path):
raise Exception('Source does not exist')
if not allow_overlay:
if self.active_mounts:
raise Exception(f'{self.name}: Chroot has submounts active: {self.active_mounts}')
if os.path.ismount(self.path):
raise Exception(f'{self.name}: There is already something mounted at {self.path}, not mounting over it.')
if os.path.exists(os.path.join(self.path, 'usr/bin')):
raise Exception(f'{self.name}: {self.path}/usr/bin exists, not mounting over existing rootfs.')
os.makedirs(self.path, exist_ok=True)
atexit.register(self.deactivate)
self.mount(source_path, '/', fs_type=fs_type, options=options)
def mount_crossdirect(self, native_chroot: Chroot = None):
"""
mount `native_chroot` at `target_chroot`/native