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Mondo Rescue and Mindi Linux HOWTO
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Chapter 8. Compare
Before you trust your backup CD, make sure your BIOS can boot
CD (and that it is configured to do so).
Boot from the first CD.
Type:
bash# compare
Follow the on-screen instructions. This will compare your
backup against your original file system.
FYI, no bad archives have been created since May 2000. Having
said that, I would still encourage you to run Compare before
trusting the backups.
To view the file differences, look at the file
'/tmp/changed.txt'. Normal differences include logs and other
dynamic system files that changed during the time of the backup
process. If only a few files differ - e.g. files in /var, files
ending in '˜', logs, temporary files, /etc/mtab,
/etc/adjtimex - then you know the archives are good. Your logs will
change over time, too. Bear in mind that a difference between the
backup and the live copy does not indicate a flaw in Mondo. It
indicates that you or your filesystem changed the files, so the
backup is no longer 100% up to date. However, that is inevitable,
as your filesystem changes from moment to moment (which is why you
back it up regularly).
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Backup Command and Options
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