sysupgrade: clarify online help
Fixes #12346. Signed-off-by: Paul Fertser <fercerpav@gmail.com> SVN-Revision: 34975
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1 changed files with 17 additions and 14 deletions
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@ -47,27 +47,30 @@ export ARGC="$#"
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[ -z "$ARGV" -a -z "$NEED_IMAGE" -o $HELP -gt 0 ] && {
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cat <<EOF
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Usage: $0 [options] <image file or URL>
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Usage: $0 [<upgrade-option>...] <image file or URL>
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$0 [-q] [-i] <backup-command> <file>
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Options:
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upgrade-option:
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-d <delay> add a delay before rebooting
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-f <config> restore configuration from .tar.gz (file or url)
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-i interactive mode
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-c attempt to preserve all changed files in /etc/
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-b / --create-backup <file>
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create .tar.gz of files specified in sysupgrade.conf
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then exit. Does not flash an image. If file is '-',
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i.e. stdout, verbosity is set to 0 (i.e. quiet).
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-r / --restore-backup <file>
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restore a .tar.gz created with sysupgrade -b
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then exit. Does not flash an image. If file is '-',
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the archive is read from stdin.
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-n do not save configuration over reflash
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-F / --force
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-F | --force
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Flash image even if image checks fail, this is dangerous!
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-q less verbose
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-v more verbose
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-h / --help display this help
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-h | --help display this help
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backup-command:
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-b | --create-backup <file>
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create .tar.gz of files specified in sysupgrade.conf
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then exit. Does not flash an image. If file is '-',
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i.e. stdout, verbosity is set to 0 (i.e. quiet).
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-r | --restore-backup <file>
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restore a .tar.gz created with sysupgrade -b
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then exit. Does not flash an image. If file is '-',
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the archive is read from stdin.
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EOF
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exit 1
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@ -75,8 +78,8 @@ EOF
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[ -n "$ARGV" -a -n "$NEED_IMAGE" ] && {
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cat <<-EOF
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-b/--create-backup and -r/--restore-backup do not perform a firmware upgrade.
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Do not specify both -b/-r and a firmware image.
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-b|--create-backup and -r|--restore-backup do not perform a firmware upgrade.
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Do not specify both -b|-r and a firmware image.
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EOF
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exit 1
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}
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