79 lines
2.0 KiB
Bash
79 lines
2.0 KiB
Bash
#!/usr/bin/ash
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udevd_running=0
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mount_handler=default_mount_handler
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init=/sbin/init
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rd_logmask=0
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. /init_functions
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mount_setup
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# parse the kernel command line
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parse_cmdline </proc/cmdline
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# setup logging as early as possible
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rdlogger_start
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for d in ${disablehooks//,/ }; do
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[ -e "/hooks/$d" ] && chmod 644 "/hooks/$d"
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done
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. /config
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run_hookfunctions 'run_earlyhook' 'early hook' $EARLYHOOKS
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if [ -n "$earlymodules$MODULES" ]; then
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modprobe -qab ${earlymodules//,/ } $MODULES
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fi
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run_hookfunctions 'run_hook' 'hook' $HOOKS
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# honor the old behavior of break=y as a synonym for break=premount
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if [ "${break}" = "y" ] || [ "${break}" = "premount" ]; then
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echo ":: Pre-mount break requested, type 'exit' to resume operation"
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launch_interactive_shell
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fi
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rootdev=$(resolve_device "$root") && root=$rootdev
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unset rootdev
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fsck_root
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# Mount root at /new_root
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"$mount_handler" /new_root
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run_hookfunctions 'run_latehook' 'late hook' $LATEHOOKS
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run_hookfunctions 'run_cleanuphook' 'cleanup hook' $CLEANUPHOOKS
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if [ "$(stat -c %D /)" = "$(stat -c %D /new_root)" ]; then
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# Nothing got mounted on /new_root. This is the end, we don't know what to do anymore
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# We fall back into a shell, but the shell has now PID 1
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# This way, manual recovery is still possible.
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err "Failed to mount the real root device."
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echo "Bailing out, you are on your own. Good luck."
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echo
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launch_interactive_shell --exec
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elif [ ! -x "/new_root${init}" ]; then
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# Successfully mounted /new_root, but ${init} is missing
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# The same logic as above applies
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err "Root device mounted successfully, but ${init} does not exist."
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echo "Bailing out, you are on your own. Good luck."
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echo
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launch_interactive_shell --exec
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fi
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if [ "${break}" = "postmount" ]; then
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echo ":: Post-mount break requested, type 'exit' to resume operation"
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launch_interactive_shell
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fi
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# this should always be the last thing we do before the switch_root.
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rdlogger_stop
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exec env -i \
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"TERM=$TERM" \
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/usr/bin/switch_root /new_root $init "$@"
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# vim: set ft=sh ts=4 sw=4 et:
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