ITEM: E4700L

replace files from mksysb when all commands are gone

Question:

Customer issued the 'rm -r' command in /usr/bin.  Users were using an 
application which locked up.  They had to reboot and the system hung
at 553.  They need to know how to restore /usr/bin from a mksysb backup
tape without the tar command since it was part of /usr/bin.

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Response:

I was able to restore /usr/bin from a mksysb using the pax command
as follows:

getrootfs hdisk0 sh
mount /dev/hd2 /usr
tctl -f/dev/rmt0 rewind 
tctl -f/dev/rmt0.1 fsf 3 
pax -rvf/dev/rmt0.1 -pmop ./usr/bin

If a mksysb backup tape is used, and the system image was created with
a block size other than 512, an I/O error may occur.  
In this case, a SIPO tape can be used to do the restore and after the 
system is booted normally in multiuser mode, you can restore any required
files from the mksysb tape.



Support Line: replace files from mksysb when all commands are gone ITEM: E4700L

Dated: November 1993 Category: N/A

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