How do I upgrade an IOS tar file on a 2950 Catalyst switch? (#10854)


This is a supplement to the question already answered:
"How do I upgrade/backup a Cisco IOS to my computer?"

1) In order to transfer the tar file you need a TFTP program. One example is located at jounin.net.

When you are done downloading the tar file confirm the md5.

2) Issue dir flash: to verify you have enough space.

SW1#dir flash:

Directory of flash:/

2 -rwx 3081999 Apr 14 1993 22:52:00 +00:00 c2950-i6q4l2-mz.121-22.EA1
.bin
3 -rwx 1390 Apr 14 1993 22:52:40 +00:00 config.text
4 -rwx 5 Apr 14 1993 22:52:40 +00:00 private-config.text

7741440 bytes total (4656128 bytes free)
SW1#

3) You will probably want to delete your old ios image especially if you don't have much space left.

SW1#delete flash:c2950-i6q4l2-mz.121-22.EA1.bin
Delete filename [c2950-i6q4l2-mz.121-22.EA1.bin]?
Delete flash:c2950-i6q4l2-mz.121-22.EA1.bin? [confirm]
SW1#

4) You may want to delete any old html files if you have some old ones:

delete flash:html/*

5) Issue the command to start the extraction process:
archive tar /xtract tftp://10.10.10.3/c2950-i6q4l2-tar.121-22.EA1.tar flash:

SW1#archive tar /xtract tftp://10.10.10.3/c2950-i6q4l2-tar.121-22.EA1.tar flash:
Loading c2950-i6q4l2-tar.121-22.EA1.tar from 10.10.10.3 (via Vlan1): !
extracting info (109 bytes)
extracting c2950-i6q4l2-mz.121-22.EA1.bin (3081999 bytes)!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!
html/ (directory)
extracting html/cms_boot.jar (154860 bytes)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
extracting html/cms_splash.gif (22131 bytes)!!!!!
extracting html/start.html (576 bytes)
extracting html/cms_13.html (510 bytes)
extracting html/custom_cms.html (2441 bytes)!
extracting html/test.htm (2301 bytes)!
extracting html/not_supported.html (1392 bytes)
extracting html/cluster.html (2822 bytes)!
extracting html/err.html (152 bytes)
extracting html/appsui.js (3092 bytes)!
extracting html/stylesheet.css (3364 bytes)
extracting html/forms.js (11521 bytes)!!!
extracting html/xhome.htm (25035 bytes)!!!!!
extracting html/back-exp.htm (182 bytes)
extracting html/express-setup.htm (61957 bytes)!!!!!!!!!!!!
extracting html/doc.htm (22332 bytes)!!!!!
extracting html/tools.htm (21818 bytes)!!!!
extracting html/sitewide.js (10627 bytes)!!
extracting html/splash_screen.htm (1774 bytes)!
extracting html/troubleshooting_OS.htm (2851 bytes)!
extracting html/common.js (24978 bytes)!!!!!
extracting html/troubleshooting_CMSPlugin.htm (4830 bytes)!
extracting html/homepage.htm (605 bytes)
extracting html/ie_report.htm (21165 bytes)!!!!
extracting html/troubleshooting_JavaScript.htm (8893 bytes)!!
extracting html/net_report.htm (21107 bytes)!!!!!
extracting html/cmsplugin.js (1216 bytes)
extracting html/troubleshooting_Browser.htm (3704 bytes)!
extracting html/ie_page.htm (2097 bytes)
extracting html/ip_help.htm (11465 bytes)!!!
extracting html/es_help.htm (22604 bytes)!!!!
extracting html/tools_help.htm (13065 bytes)!!!
extracting html/home_help.htm (16098 bytes)!!!
extracting html/doc_help.htm (14118 bytes)!!!
html/ximages/ (directory)
extracting html/ximages/question.gif (405 bytes)!
extracting html/ximages/confirm.gif (515 bytes)
extracting html/ximages/top.gif (141 bytes)
extracting html/ximages/downleft.gif (53 bytes)
extracting html/ximages/arrow.gif (874 bytes)!
extracting html/ximages/botleft.gif (62 bytes)
extracting html/ximages/download.gif (1287 bytes)
extracting html/ximages/spacer.gif (49 bytes)
extracting html/ximages/fatal_error.gif (271 bytes)!
extracting html/ximages/logo.gif (974 bytes)
extracting html/ximages/pixel.gif (49 bytes)
extracting html/ximages/warning.gif (296 bytes)
extracting html/ximages/green.gif (879 bytes)!
extracting html/ximages/title_help.gif (247 bytes)
extracting html/ximages/upleft2.gif (66 bytes)
extracting html/ximages/text_start.gif (239 bytes)
extracting html/ximages/corner_ur_7.gif (53 bytes)
extracting html/ximages/upright.gif (838 bytes)!
extracting html/ximages/text_print.gif (177 bytes)
extracting html/ximages/ip_fig1.gif (6042 bytes)!
extracting html/ximages/dkgreen.gif (869 bytes)!
extracting html/ximages/upright_dot.gif (43 bytes)
extracting html/ximages/ip_fig3.gif (9178 bytes)!!
extracting html/ximages/borderback.gif (146 bytes)
extracting html/ximages/upleft1.gif (51 bytes)
extracting html/ximages/print_on.gif (111 bytes)
extracting html/ximages/button_corner.gif (110 bytes)
extracting html/ximages/text_glossary.gif (176 bytes)!
extracting html/ximages/yellow.gif (881 bytes)
extracting html/ximages/glossary_on.gif (118 bytes)
extracting html/ximages/11_upright.gif (61 bytes)
extracting html/ximages/left_bkg.gif (146 bytes)!
extracting html/ximages/downleft1.gif (54 bytes)
extracting html/ximages/bottom.gif (149 bytes)
extracting html/ximages/upright2.gif (49 bytes)
extracting html/ximages/ip_fig2.gif (5097 bytes)!
extracting html/ximages/28_upright.gif (110 bytes)
extracting html/ximages/glossary_off.gif (118 bytes)!
extracting html/ximages/print_off.gif (111 bytes)
extracting html/CiscoChartPanel.sgz (57732 bytes)!!!!!!!!!!!
extracting html/Redirect.jar (1903 bytes)!
extracting html/CMS.pfj (2019549 bytes)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
extracting html/images.sgz (192059 bytes)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!
extracting html/help.sgz (526933 bytes)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
extracting html/distinfo.dat (276 bytes)
extracting html/cms_disc.sgz (46514 bytes)!!!!!!!!!!!
extracting info.ver (109 bytes)!!
[OK - 6553600 bytes]

6) Verify:

SW1#verify flash:c2950-i6q4l2-mz.121-22.EA1.bin
Verified flash:c2950-i6q4l2-mz.121-22.EA1.bin
SW1#

7) Write to memory and reload the switch.

SW1#wr mem
Building configuration...
[OK]
SW1#reload
Proceed with reload? [confirm]