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git://sourceware.org/git/lvm2.git
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50762c2186
to back this out so you can do that commit, let me know. Also, if there's an issue with the error message that's displayed, just change it in tools.h. This causes a "device-mapper driver/module not loaded?" error message to be displayed for the commands that require dm-mod, if the tools can't get the driver version. It's not done for commands that don't require dm-mod. This should clear up some problems people have had attempting to use lvm2 without rtfm'ing.
66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
/*
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* Copyright (C) 2001 Sistina Software (UK) Limited.
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*
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* This file is released under the GPL.
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*/
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#include "tools.h"
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#include <stdio.h>
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static int _backup_to_file(const char *file, struct volume_group *vg)
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{
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int r;
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struct format_instance *tf;
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void *context;
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if (!(context = create_text_context(vg->cmd->fmtt, file,
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vg->cmd->cmd_line)) ||
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!(tf = vg->cmd->fmtt->ops->create_instance(vg->cmd->fmtt, NULL,
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context))) {
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log_error("Couldn't create backup object.");
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return 0;
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}
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if (!(r = tf->fmt->ops->vg_write(tf, vg, context)) ||
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!(r = tf->fmt->ops->vg_commit(tf, vg, context)))
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stack;
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tf->fmt->ops->destroy_instance(tf);
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return r;
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}
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static int vg_backup_single(struct cmd_context *cmd, const char *vg_name)
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{
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struct volume_group *vg;
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log_verbose("Checking for volume group \"%s\"", vg_name);
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if (!(vg = vg_read(cmd, vg_name))) {
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log_error("Volume group \"%s\" not found", vg_name);
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return ECMD_FAILED;
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}
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if (arg_count(cmd, file_ARG)) {
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_backup_to_file(arg_value(cmd, file_ARG), vg);
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} else {
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/* just use the normal backup code */
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backup_enable(1); /* force a backup */
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if (!backup(vg)) {
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stack;
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return ECMD_FAILED;
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}
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}
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log_print("Volume group \"%s\" successfully backed up.", vg_name);
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return 0;
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}
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int vgcfgbackup(struct cmd_context *cmd, int argc, char **argv)
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{
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if (!driver_is_loaded())
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return ECMD_FAILED;
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return process_each_vg(cmd, argc, argv, LCK_VG_READ, &vg_backup_single);
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}
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