b47483433c
bin_img=1 in the boot monitor will make sure that during the boot procedure the mfs binary that is part of the boot image is the only binary that is used to mount partitions. This is useful when for some reason the mfs binary on disk malfunctions, rendering Minix unable to boot. By setting bin_img=1, the binary on disk is ignored and the binary in the boot image is used instead. - 'service' now accepts an additional flag -r. -r implies -c. -r instructs RS to first look in memory if the binary has already been copied to memory and execute that version, instead of loading the binary from disk. For example, the first time a MFS is being started it is copied (-c) to memory and executed from there. The second time MFS is being started this way, RS will look in memory for a previously copied MFS binary and reuse it if it exists. - The mount and newroot commands now accept an additional flag -i, which instructs them to set the MS_REUSE flag in the mount flags. - The mount system call now supports the MS_REUSE flag and invokes 'service' with the -r flag when MS_REUSE is set. - /etc/rc and the rc script that's included in the boot image check for the existence of the bin_img flag in the boot monitor, and invoke mount and newroot with the -i flag accordingly.
50 lines
1.4 KiB
Bash
50 lines
1.4 KiB
Bash
#!/bin/sh
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set -e
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exec >/dev/log
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exec 2>/dev/log
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exec </dev/null
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/bin/service up /bin/pci -config /etc/drivers.conf
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/bin/service -c up /bin/floppy -config /etc/drivers.conf -dev /dev/fd0
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if [ X`/bin/sysenv bios_wini` = Xyes ]
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then
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echo Using bios_wini.
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/bin/service -c up /bin/bios_wini -dev /dev/c0d0
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else
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/bin/service -c up /bin/at_wini -dev /dev/c0d0 -config /etc/drivers.conf -label at_wini_0
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/bin/service -c up /bin/at_wini -dev /dev/c1d0 -config /etc/drivers.conf -label at_wini_1 -args ata_instance=1
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fi
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rootdev=`sysenv rootdev` || echo 'No rootdev?'
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rootdevname=`/bin/dev2name "$rootdev"` ||
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{ echo 'No device name for root device'; exit 1; }
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if [ "`sysenv bin_img`" = 1 ]
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then
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bin_img="-i "
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fi
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if sysenv cdproberoot >/dev/null
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then
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echo
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echo 'Looking for boot CD. This may take a minute.'
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echo 'Please ignore any error messages.'
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echo
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cddev=`cdprobe` || { echo 'No CD found'; exit 1; }
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export cddev
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echo "Loading ramdisk from ${cddev}p1"
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loadramdisk "$cddev"p1
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elif [ "$rootdevname" = "/dev/ram" ]
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then
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ramimagedev=`sysenv ramimagedev` ||
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{ echo 'ramimagedev not found'; exit 1; }
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ramimagename=`/bin/dev2name "$ramimagedev"` ||
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{ echo 'No device name for ramimagedev'; exit 1; }
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echo "Loading ramdisk from $ramimagename"
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loadramdisk "$ramimagename"
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fi
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echo "Root device name is $rootdevname"
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/bin/newroot $bin_img"$rootdevname"
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exec /bin/sh /etc/rc "$@"
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