The flash file system is a single flash device on which you can store files. It also provides several commands to help you manage software bundles and configuration files. The default flash file system on the device is named flash:.

As viewed from the active device, flash: refers to the local flash device, which is the device attached to the same device on which the file system is being viewed.

Only one user at a time can manage the software bundles and configuration files.

To display the available file systems on your device, use the show file systems privileged EXEC command as shown in this example for a standalone device:

Device# show file systems
File Systems:
Size(b) Free(b) Type Flags Prefixes
- - opaque rw system:
- - opaque rw tmpsys:
1651314688 1467920384 disk rw crashinfo:
* 11353194496 6942072832 disk rw flash:
7723847680 7646384128 disk ro webui:
- - opaque rw null:
- - opaque ro tar:
- - network rw tftp:
2097152 2089932 nvram rw nvram:
- - network rw rcp:
- - network rw http:
- - network rw ftp:
- - network rw scp:
- - network rw https:
- - opaque ro cns:
118014062592 111933124608 disk rw usbflash1:

Device#show usbflash1: filesys
Filesystem: usbflash1
Filesystem Path: /vol/usb1
Filesystem Type: ext4
Mounted: Read/Write

Device# show file systems
File Systems:

       Size(b)       Free(b)      Type  Flags  Prefixes
             -             -    opaque     rw   system:
             -             -    opaque     rw   tmpsys:
    1651314688    1565089792      disk     rw   crashinfo: crashinfo-2:
    1651507200    1560281088      disk     rw   crashinfo-1:
    1651507200    1562378240      disk     rw   crashinfo-3: stby-crashinfo:
*  11353194496   10735611904      disk     rw   flash: flash-2:
   11353980928   10152312832      disk     rw   flash-1:
   11353980928    2161115136      disk     rw   flash-3: stby-flash:
   15243046912   14423638016      disk     rw   usbflash0: usbflash0-2:
     520093696     520093696      disk     rw   usbflash0-1:
    3497074688    3417554944      disk     ro   webui:
             -             -    opaque     rw   null:
             -             -    opaque     ro   tar:
             -             -   network     rw   tftp:
       2097152       2085334     nvram     rw   nvram:
             -             -   network     rw   rcp:
             -             -   network     rw   http:
             -             -   network     rw   ftp:
             -             -   network     rw   scp:
             -             -   network     rw   https:
             -             -    opaque     ro   cns:
   21003628544   19867037696      disk     rw   usbflash1: usbflash1-2:
  118014083072  111933390848      disk     rw   usbflash1-3: stby-usbflash1:
       2097152       2085334     nvram     rw   stby-nvram:
             -             -     nvram     rw   stby-rcsf:
             -             -    opaque     rw   revrcsf:

You can specify the file system or directory that the system uses as the default file system by using the cd filesystem: privileged EXEC command. You can set the default file system to omit the filesystem: argument from related commands. For example, for all privileged EXEC commands that have the optional filesystem: argument, the system uses the file system specified by the cd command.

By default, the default file system is flash:.

You can display the current default file system as specified by the cd command by using the pwd privileged EXEC command.

You can view a list of the contents of a file system before manipulating its contents. For example, before copying a new configuration file to flash memory, you might want to verify that the file system does not already contain a configuration file with the same name. Similarly, before copying a flash configuration file to another location, you might want to verify its filename for use in another command. To display information about files on a file system, use one of the privileged EXEC commands listed in the following table.

For example, to display a list of all files in a file system, use the dir privileged EXEC command:

Device# dir flash:
DDirectory of bootflash:/

616513  drwx             4096  Jul 15 2015 07:11:35 +00:00  .installer
608402  -rw-            33818  Sep 25 2015 11:41:35 +00:00  bootloader_evt_handle.log
608403  drwx             4096  Feb 27 2017 13:56:47 +00:00  .ssh
608410  -rw-                0   Jun 5 2015 10:16:17 +00:00  dc_stats.txt
608411  drwx            20480  Sep 23 2015 11:50:13 +00:00  core
624625  drwx             4096  Sep 23 2015 12:29:27 +00:00  .prst_sync
640849  drwx             4096  Feb 27 2017 13:57:30 +00:00  .rollback_timer
608412  drwx             4096  Jun 17 2015 18:12:47 +00:00  orch_test_logs
608413  -rw-         33554432  Sep 25 2015 11:43:15 +00:00  nvram_config
608417  -rw-               35  Sep 25 2015 20:17:42 +00:00  pnp-tech-time
608439  -rw-           214054  Sep 25 2015 20:17:48 +00:00  pnp-tech-discovery-summary
608419  drwx             4096  Jul 23 2015 07:50:25 +00:00  util
616514  drwx             4096  Mar 18 2015 11:09:04 +00:00  onep
608442  -rw-              556  Mar 18 2015 11:19:34 +00:00  vlan.dat
608448  -rw-          1131779  Mar 28 2015 13:13:48 +00:00  log.txt
616516  drwx             4096   Apr 1 2015 09:34:56 +00:00  gs_script
616517  drwx             4096   Apr 6 2015 09:42:38 +00:00  tools
608440  -rw-              252  Sep 25 2015 11:41:52 +00:00  boothelper.log
624626  drwx             4096  Apr 17 2015 06:10:55 +00:00  SD_AVC_AUTO_CONFIG
608488  -rw-            98869  Sep 25 2015 11:42:15 +00:00  memleak.tcl
608437  -rwx            17866  Jul 16 2015 04:01:10 +00:00  ardbeg_x86
632745  drwx             4096  Aug 20 2015 11:35:09 +00:00  CRDU
632746  drwx             4096  Sep 16 2015 08:57:44 +00:00  ardmore
608418  -rw-          1595361   Jul 8 2015 11:18:33 +00:00  system-report_RP_0_20150708-111832-UTC.tar.gz
608491  -rw-         67587176  Aug 12 2015 05:30:35 +00:00  mcln_x86_kernel_20170628.SSA
608492  -rwx         74880100  Aug 12 2015 05:30:57 +00:00  stardust.x86.idprom.0718B

11250098176 bytes total (9128050688 bytes free)
Device#

To copy a file from a source to a destination, use the copy source-url destination-url privileged EXEC command. For the source and destination URLs, you can use running-config and startup-config keyword shortcuts. For example, the copy running-config startup-config command saves the currently running configuration file to the NVRAM section of flash memory to be used as the configuration during system initialization.

You can also copy from special file systems (xmodem:, ymodem:) as the source for the file from a network machine that uses the Xmodem or Ymodem protocol. SSH File Transfer Protocol (SFTP) is also another option to copy switch configuration or image files. For more information, refer the Configuring SSH File Transfer Protocol chapter of the Security Configuration Guide.

Network file system URLs include ftp:, rcp:, tftp:, scp:, http:, and https: and have these syntaxes:

• FTP—ftp:[[//username [:password]@location]/directory]/filename

• RCP—rcp:[[//username@location]/directory]/filename

• TFTP—tftp:[[//location]/directory]/filename

• SCP—scp:[[//username [:password]@location]/directory]/filename

• HTTP—http:[[//username [:password]@location]/directory]/filename

• HTTPS—https:[[//username [:password]@location]/directory]/filename

Note	The password must not contain the special character '@'. If the character '@' is used, the copy fails to parse the IP address of the server.

Local writable file systems include flash:.

Some invalid combinations of source and destination exist. Specifically, you cannot copy these combinations:

• From a running configuration to a running configuration

• From a startup configuration to a startup configuration