Troubleshooting Guide

6. If errors are detected, then you can reformat the device:
dos-format /usb
Caution:
If you format the device, you erase all data on the device.
Example
Check the file system:
Switch:1>enable
Switch:1#ls /usb/
Listing Directory /usb/:
drwxr-xr-x 4 0 0 4096 Jan 1 1970 ./
drwxrwxr-x
22 0 0 0 Sep 9 20:22 ../
drwxr-xr-x 2 0 0 4096 Mar 17 16:03 Photos-of-Flash-
drwxr-xr-x 2 0 0 4096 Jun 13 20:56 intflash/
Check the device for errors:
Switch:1#usb-stop
It is now safe to remove the USB device.
Switch:1#dos-chkdsk /usb
/usr/sbin/fsck.vfat /dev/usb1 -v >& /dev/console dosfsck 2.11a
(05 Mar 2010)
dosfsck 2.11a, 05 Mar 2010, FAT32, LFN
Checking we can access the last sector of the filesystem
Boot sector contents:
System ID "mkdosfs"
Media byte 0xf8 (hard disk)
512 bytes per logical sector
4096 bytes per cluster
32 reserved sectors
First FAT starts at byte 16384 (sector 32)
2 FATs, 32 bit entries
3897344 bytes per FAT (= 7612 sectors)
Root directory start at cluster 2 (arbitrary size)
Data area starts at byte 7811072 (sector 15256)
974240 data clusters (3990487040 bytes)
62 sectors/track, 124 heads
0 hidden sectors
7809178 sectors total
Checking for unused clusters.
Checking free cluster summary.
/dev/usb1: 17 files, 174804/974240 clusters
If errors are detected, reformat the disk:
Switch:1#dos-format /usb
Troubleshooting USB viewing problems
January 2017 Troubleshooting 93
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