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123 lines
4.1 KiB
123 lines
4.1 KiB
Based on:
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> Forward-port the old mdstart tool from the Gentoo Busybox-1.1.3.
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> Only fires the RAID_AUTORUN ioctl on existing /dev/md nodes.
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diff -pruN a/include/applets.src.h mdstart/include/applets.src.h
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--- a/include/applets.src.h 2011-01-20 01:08:05.470632138 +0100
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+++ mdstart/include/applets.src.h 2011-01-20 01:09:13.198003320 +0100
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@@ -235,6 +235,7 @@ IF_MAN(APPLET(man, _BB_DIR_SBIN, _BB_SUI
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IF_MATCHPATHCON(APPLET(matchpathcon, _BB_DIR_USR_SBIN, _BB_SUID_DROP))
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IF_MD5SUM(APPLET_NOEXEC(md5sum, md5_sha1_sum, _BB_DIR_USR_BIN, _BB_SUID_DROP, md5sum))
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IF_MDEV(APPLET(mdev, _BB_DIR_SBIN, _BB_SUID_DROP))
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+IF_MDSTART(APPLET(mdstart, _BB_DIR_SBIN, _BB_SUID_DROP))
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IF_MICROCOM(APPLET(microcom, _BB_DIR_USR_BIN, _BB_SUID_DROP))
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IF_MKDIR(APPLET_NOFORK(mkdir, mkdir, _BB_DIR_BIN, _BB_SUID_DROP, mkdir))
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IF_MKFS_VFAT(APPLET_ODDNAME(mkdosfs, mkfs_vfat, _BB_DIR_SBIN, _BB_SUID_DROP, mkfs_vfat))
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diff -pruN a/include/usage.src.h mdstart/include/usage.src.h
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--- a/include/usage.src.h 2010-12-21 06:29:45.000000000 +0200
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+++ mdstart/include/usage.src.h 2011-01-12 21:29:47.000000000 +0200
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@@ -847,6 +847,11 @@ INSERT
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"$ dirname /tmp/foo/\n" \
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"/tmp\n"
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+#define mdstart_trivial_usage \
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+ "{[PARTITION] MD-NODE}..."
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+#define mdstart_full_usage \
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+ "Run the RAID_AUTORUN ioctl on the given MD number"
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+
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#define dmesg_trivial_usage \
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"[-c] [-n LEVEL] [-s SIZE]"
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#define dmesg_full_usage "\n\n" \
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diff -pruN a/util-linux/Config.src mdstart/util-linux/Config.src
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--- a/util-linux/Config.src 2010-12-20 02:41:27.000000000 +0200
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+++ mdstart/util-linux/Config.src 2011-01-12 21:30:09.000000000 +0200
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@@ -456,6 +456,13 @@ config FEATURE_MDEV_LOAD_FIRMWARE
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/lib/firmware/ and if it exists, send it to the kernel for
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loading into the hardware.
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+config MDSTART
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+ bool "mdstart"
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+ default n
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+ help
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+ Allows you to autostart /dev/md devices if using an initramfs to
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+ boot.
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+
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config MKSWAP
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bool "mkswap"
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default y
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diff -pruN a/util-linux/Kbuild.src mdstart/util-linux/Kbuild.src
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--- a/util-linux/Kbuild.src 2010-12-20 02:41:27.000000000 +0200
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+++ mdstart/util-linux/Kbuild.src 2011-01-12 21:30:09.000000000 +0200
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@@ -24,6 +24,7 @@ lib-$(CONFIG_HWCLOCK) += hwclo
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lib-$(CONFIG_IPCRM) += ipcrm.o
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lib-$(CONFIG_IPCS) += ipcs.o
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lib-$(CONFIG_LOSETUP) += losetup.o
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+lib-$(CONFIG_MDSTART) += mdStart.o
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lib-$(CONFIG_LSPCI) += lspci.o
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lib-$(CONFIG_LSUSB) += lsusb.o
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lib-$(CONFIG_MDEV) += mdev.o
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diff -pruN a/util-linux/mdStart.c mdstart/util-linux/mdStart.c
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--- a/util-linux/mdStart.c 1970-01-01 03:00:00.000000000 +0300
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+++ mdstart/util-linux/mdStart.c 2011-01-12 21:30:09.000000000 +0200
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@@ -0,0 +1,59 @@
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+/*
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+ * Linux 2.6(+) RAID Autostarter
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+ *
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+ * Copyright (C) 2005 by Tim Yamin <plasmaroo@gentoo.org> <plasm@roo.me.uk>
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation; either version 2 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ * General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program; if not, write to the Free Software
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+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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+ *
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+ */
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+
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+#include <sys/types.h>
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+#include <sys/stat.h>
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+#include <fcntl.h>
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+#include <sys/ioctl.h>
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+#include <linux/major.h>
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+#include <linux/raid/md_u.h>
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+
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+extern int
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+mdstart_main(int argc, char *argv[])
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+{
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+ int i, fd, part = 0, retval = 0;
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+
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+ if(argc < 2)
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+ {
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+ bb_show_usage();
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+ }
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+
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+ for(i = 1; i < argc; i++)
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+ {
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+ if(sscanf(argv[i], "%d", &part) == 1)
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+ continue;
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+
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+ fd = open(argv[i], 0, 0);
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+ if (fd >= 0)
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+ {
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+ ioctl(fd, RAID_AUTORUN, part);
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+ close(fd);
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+ } else
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+ {
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+ printf("Error: Failed to open %s!\n", argv[i]);
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+ retval=1;
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+ }
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+
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+ part = 0;
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+ }
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+
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+ return retval;
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+}
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