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This is the 1/18 step of fsck. Read and check master node, init lpt.
There could be following errors:
1. corrupted scanning data in master area or invalid master node:
danger mode with rebuild_fs and normal mode with 'yes' answer will
turn to rebuild filesystem, other modes will exit.
2. incorrect space statistics in master node: Set %FR_LPT_INCORRECT for
for lpt status. Ignore the error.
3. corrupted lpt: Set %FR_LPT_CORRUPTED for lpt status. Ignore the error.
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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Load filesystem information from UBI volume (Similar to UBIFS mounting
process), initialize kinds of buffers and read superblock. This is the
base step for both fsck and rebuild_fs. Subsequent pacthes will complete
this step by adding more steps(eg. read master, replay journal, etc.)
which are only used in fsck.
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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There are four dimensions to define the type of inconsistent problems:
1. fixable: Some inconsistent problems can't be fixed, for example
corrupted superblock. Un-fixable problem will abort program.
2. must fix: Some inconsistent problems can be ignored(eg. incorrect
isize), but some are not(eg. corrupted TNC), which will affect the
subsequent fsck steps.
3. drop data: Some fixing methods will drop user data, which is
unacceptable for safe mode. If it happens, fsck will be aborted.
4. need rebuild: Some inconsistent problems depends on rebuilding
filesystem to be fixed(eg. corrupted master node, corrupted TNC).
Define an asking function to handle above kinds of inconsistent problems.
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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