ICP DAS USA LinPAC AM335 Series, Руководство пользователя

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AM335X-PAC Series User Manual version 2.0.4 Page: 101
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6.1.3. Scanning and repairing a microSD Card
After the LinPAC AM335x PAC is booted, the microSD card will be named ‘ /dev/mmcblk0p1 ’. It is
recommended that the microSD card is unmounted first before attempting to perform a scan or
repair.

blockdev : this command is used to call block device ioctls from the command line.

fsck.minix: this command is used to perform a consistency check for the Linux MINIX
filesystem.

fsck.vfat : this command is used to check and repair MS-DOS file systems.

mkfs: this command is used to build a Linux file system on a device, usually a hard disk
partition.
Parameter Description Example
--report print a report for device blockdev --report /dev/mmcblk0p1
-v
--getra
--getbz
get readhead and blocksize
blockdev -v --getra –getbz
/dev/mmcblk0p1
Parameter Description Example
-r performs interactive repairs fsck.minix -r /dev/mmcblk0p1
-s outputs super-block information fsck.minix -s /dev/mmcblk0p1
Parameter Description Example
-a automatically repair the file system fsck.vfat -a /dev/mmcblk0p1
-l list path names of files being processed fsck.vfat -l /dev/mmcblk0p1
Parameter Description Example
-t specifies the type of file system to be built mkfs -t vfat /dev/mmcblk0p1
-c
check the device for bad blocks before
building the file system
mkfs -c vfat /dev/mmcblk0p1