search for: vgcfgbackup

Hi guys, I have two disks, one with OS and a second disk containing an LVM. I would like to OS reload the server without losing LVM. I heard that LVM is self sustaining. Is that true ? Should I backup something(using vgcfgbackup & vgexport ?) to get LVM running after os reload. Thanks in advance. -- Sherin

...em with some data, and it's presence (or non-presence) theoretically shouldn't affect bootability of machine. However, booting still fails with root file system not mounted and of course kernel panic since it can't find init. I've attempted doing several things (vgchange -a y, vgcfgbackup, checking the files it created, vgcfgrestore, then recreating initrd images). But nothing helped. I guess all needed device driver are correctly loaded, since it was able to detect volume group (and both volume groups are on the same RAID controller). Running mkinitrd in verbose mode looks...

Hi All, For quite some time I've used raid 1 as a means of providing a rollback mechanism for an upgrade (which I learned from others long ago). So essentially, before an upgrade you split the mirrors and upgrade one side or the other. If your upgrade goes well you sync one way, if your upgrade does not you sync the other (much hand waving and chanting going on, as its more complicated than

Hi All, I have several Xen virtual machines within logical volumes using LVM2. I did not use disk images for performance reasons. Conventionally, if I want to clone my virtual machines, I have to dd the LV to an image file. But this consumes a lot of time and harddisk space. So, instead of doing that, I want to use losetup and kpartx with my logical volumes, which contain operating systems of

...t;, "vgscan", NULL); + str_lvm, "vgscan", NULL); if (r == -1) { reply_with_error ("%s", err); free (err); @@ -893,7 +895,7 @@ do_vgmeta (const char *vg, size_t *size_r) close (fd); - r = command (NULL, &err, "lvm", "vgcfgbackup", "-f", tmp, vg, NULL); + r = command (NULL, &err, str_lvm, "vgcfgbackup", "-f", tmp, vg, NULL); if (r == -1) { reply_with_error ("vgcfgbackup: %s", err); free (err); @@ -968,7 +970,7 @@ do_pvchange_uuid (const char *device) int r;...

...t;, "vgscan", NULL); + str_lvm, "vgscan", NULL); if (r == -1) { reply_with_error ("%s", err); free (err); @@ -893,7 +895,7 @@ do_vgmeta (const char *vg, size_t *size_r) close (fd); - r = command (NULL, &err, "lvm", "vgcfgbackup", "-f", tmp, vg, NULL); + r = command (NULL, &err, str_lvm, "vgcfgbackup", "-f", tmp, vg, NULL); if (r == -1) { reply_with_error ("vgcfgbackup: %s", err); free (err); @@ -968,7 +970,7 @@ do_pvchange_uuid (const char *device) int r;...

...lvm, "vgscan", NULL); + "lvm", "vgscan", NULL); if (r == -1) { reply_with_error ("%s", err); return -1; @@ -983,7 +981,7 @@ do_vgmeta (const char *vg, size_t *size_r) close (fd); - r = command (NULL, &err, str_lvm, "vgcfgbackup", "-f", tmp, vg, NULL); + r = command (NULL, &err, "lvm", "vgcfgbackup", "-f", tmp, vg, NULL); if (r == -1) { reply_with_error ("vgcfgbackup: %s", err); return NULL; @@ -1056,7 +1054,7 @@ do_pvchange_uuid (const char *device)...

...lvm, "vgscan", NULL); + "lvm", "vgscan", NULL); if (r == -1) { reply_with_error ("%s", err); return -1; @@ -983,7 +983,7 @@ do_vgmeta (const char *vg, size_t *size_r) close (fd); - r = command (NULL, &err, str_lvm, "vgcfgbackup", "-f", tmp, vg, NULL); + r = command (NULL, &err, "lvm", "vgcfgbackup", "-f", tmp, vg, NULL); if (r == -1) { reply_with_error ("vgcfgbackup: %s", err); return NULL; @@ -1056,7 +1056,7 @@ do_pvchange_uuid (const char *device)...

This is a simpler patch that removes GUESTFSD_EXT_CMD completely.

Replace GUESTFSD_EXT_CMD with a command line option ‘./guestfsd --print-external-commands’