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Cisco 3600 Series Hardware Installation Guide
OL-2056-02
Chapter 5 Installing Memory in the Router
Installing and Formatting Compact Flash Memory Cards in Cisco 3631 Routers
Base FAT Sector 128
Base Data Sector 184
Please use "dir" command to display the contents of the card.
The following example shows output for an internal Compact Flash memory card formatted with a
Class B Flash file system:
Router# show flash:
System CompactFlash directory:
File Length Name/status
1 5190020 c3631-i-mz
2 6458584 c3725-i-mz
3 16535740 c3631-telcoent-mz
[28184536 bytes used, 100266024 available, 128450560 total]
125440K bytes of ATA System CompactFlash (Read/Write)
Formatting Compact Flash Memory as a DOS File System
To format a Compact Flash memory card with a Class C Flash file system, use the format command.
To format a new internal Compact Flash memory card, or to remove the files from a previously installed
internal Compact Flash memory card, enter the format flash: command.
The following example shows output for formatting an internal Compact Flash memory card formatted
with a Class C Flash file system:
Router# format flash:
Format operation may take a while. Continue? [confirm]
Format operation will destroy all data in "flash:". Continue? [confirm]
Enter volume ID (up to 64 chars)[default flash]:
Current Low End File System flash card in flash will be formatted into DOS
File System flash card! Continue? [confirm]
Format:Drive communication & 1st Sector Write OK...
Writing Monlib sectors ...................................................................
Monlib write complete
..
Format:All system sectors written. OK...
Format:Total sectors in formatted partition:250592
Format:Total bytes in formatted partition:128303104
Format:Operation completed successfully.
Format of flash complete
Formatting Compact Flash Memory as a Class B Flash File System
To format a Compact Flash memory card with a Class B Flash file system (LEFS), use the erase
command.
To format a new internal Compact Flash memory card, or to remove the files from a previously installed
internal Compact Flash memory card, enter the erase flash: command.
The following example shows output for formatting an internal Compact Flash memory card with a
Class B Flash file system:
Router# erase flash:
Erasing the flash filesystem will remove all files! Continue? [confirm]
Current DOS File System flash card in flash: will be formatted into Low
End File System flash card! Continue? [confirm]
Erasing device...