[zfs-discuss] zpool import minor bug in snv_64a
Not sure if this has been reported or not. This is fairly minor but slightly annoying. After fresh install of snv_64a I run zpool import to find this : # zpool import pool: zfs0 id: 13628474126490956011 state: ONLINE status: The pool is formatted using an older on-disk version. action: The pool can be imported using its name or numeric identifier, though some features will not be available without an explicit 'zpool upgrade'. config: zfs0 ONLINE mirror ONLINE c1t9d0 ONLINE c0t9d0 ONLINE mirror ONLINE c1t10d0 ONLINE c0t10d0 ONLINE mirror ONLINE c1t11d0 ONLINE c0t11d0 ONLINE mirror ONLINE c1t12d0 ONLINE c0t12d0 ONLINE mirror ONLINE c1t13d0 ONLINE c0t13d0 ONLINE mirror ONLINE c1t14d0 ONLINE c0t14d0 ONLINE So I then run a zpool import but I add in the -R option and specify root thus : # zpool import -f -R / 13628474126490956011 One would think that the -R / would not result in any damage but this si the result : # zfs list NAME USED AVAIL REFER MOUNTPOINT zfs0 191G 8.23G 24.5K legacy zfs0/SUNWspro 567M 201M 567M //opt/SUNWspro zfs0/backup190G 8.23G 189G //export/zfs/backup zfs0/backup/qemu 1.09G 934M 1.09G //export/zfs/qemu zfs0/csw 124M 3.88G 124M //opt/csw zfs0/home 239M 7.77G 239M //export/home zfs0/titan24.5K 8.23G 24.5K //export/zfs/titan Note the extra / there that should not be there. Not a simple thing to fix either : # zfs set mountpoint=/opt/SUNWspro zfs0/SUNWspro # zfs list NAME USED AVAIL REFER MOUNTPOINT zfs0 191G 8.23G 24.5K legacy zfs0/SUNWspro 567M 201M 567M //opt/SUNWspro zfs0/backup190G 8.23G 189G //export/zfs/backup zfs0/backup/qemu 1.09G 934M 1.09G //export/zfs/qemu zfs0/csw 124M 3.88G 124M //opt/csw zfs0/home 239M 7.77G 239M //export/home zfs0/titan24.5K 8.23G 24.5K //export/zfs/titan relatively harmless. Looks like altroot should be assumed to be / unless otherwise specified and if it is specified to be / then the altroot can be ignored. I don't know if that is clear but I think you know what I mean : in /usr/src/cmd/zpool/zpool_main.c : static int do_import(nvlist_t *config, const char *newname, const char *mntopts, const char *altroot, int force, int argc, char **argv) if that const char *altroot happens to be nothing more than a forward slash char ( nul terminated ) then I think it should be ignored. What say you ? Dennis ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] zpool import minor bug in snv_64a
On Mon, Jun 25, 2007 at 02:34:21AM -0400, Dennis Clarke wrote:
in /usr/src/cmd/zpool/zpool_main.c :
at line 680 forwards we can probably check for this scenario :
if ( ( altroot != NULL ) ( altroot[0] != '/') ) {
(void) fprintf(stderr, gettext(invalid alternate root '%s':
must be an absolute path\n), altroot);
nvlist_free(nvroot);
return (1);
}
/* some altroot has been specified *
* thus altroot[0] and altroot[1] exist */
else if ( ( altroot[0] = '/') ( altroot[1] = '\0') ) {
s/=/==/
(void) fprintf(stderr, Do not specify / as alternate root.\n);
You need gettext() here.
nvlist_free(nvroot);
return (1);
}
not perfect .. but something along those lines.
--
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Re: [zfs-discuss] zpool import minor bug in snv_64a
in /usr/src/cmd/zpool/zpool_main.c :
at line 680 forwards we can probably check for this scenario :
if ( ( altroot != NULL ) ( altroot[0] != '/') ) {
(void) fprintf(stderr, gettext(invalid alternate root '%s':
must be an absolute path\n), altroot);
nvlist_free(nvroot);
return (1);
}
/* some altroot has been specified *
* thus altroot[0] and altroot[1] exist */
else if ( ( altroot[0] = '/') ( altroot[1] = '\0') ) {
(void) fprintf(stderr, Do not specify / as alternate root.\n);
nvlist_free(nvroot);
return (1);
}
not perfect .. but something along those lines.
Dennis
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Re: [zfs-discuss] zpool import minor bug in snv_64a
On Mon, Jun 25, 2007 at 02:34:21AM -0400, Dennis Clarke wrote:
note that it was well after 2 AM for me .. half blind asleep
that's my excuse .. I'm sticking to it. :-)
in /usr/src/cmd/zpool/zpool_main.c :
at line 680 forwards we can probably check for this scenario :
if ( ( altroot != NULL ) ( altroot[0] != '/') ) {
(void) fprintf(stderr, gettext(invalid alternate root '%s':
must be an absolute path\n), altroot);
nvlist_free(nvroot);
return (1);
}
/* some altroot has been specified *
* thus altroot[0] and altroot[1] exist */
else if ( ( altroot[0] = '/') ( altroot[1] = '\0') ) {
s/=/==/
yep ... that's what I intended. The above would bork royally.
(void) fprintf(stderr, Do not specify / as alternate root.\n);
You need gettext() here.
why ?
nvlist_free(nvroot);
return (1);
}
not perfect .. but something along those lines.
even worse .. I was looking in the wrong section of the code or zpool_main.c
if I get coffee and wake up .. maybe I can take another kick at that eh?
Dennis
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Re: [zfs-discuss] zpool import minor bug in snv_64a
You've tripped over a variant of: 6335095 Double-slash on /. pool mount points - Eric On Mon, Jun 25, 2007 at 02:11:33AM -0400, Dennis Clarke wrote: Not sure if this has been reported or not. This is fairly minor but slightly annoying. After fresh install of snv_64a I run zpool import to find this : # zpool import pool: zfs0 id: 13628474126490956011 state: ONLINE status: The pool is formatted using an older on-disk version. action: The pool can be imported using its name or numeric identifier, though some features will not be available without an explicit 'zpool upgrade'. config: zfs0 ONLINE mirror ONLINE c1t9d0 ONLINE c0t9d0 ONLINE mirror ONLINE c1t10d0 ONLINE c0t10d0 ONLINE mirror ONLINE c1t11d0 ONLINE c0t11d0 ONLINE mirror ONLINE c1t12d0 ONLINE c0t12d0 ONLINE mirror ONLINE c1t13d0 ONLINE c0t13d0 ONLINE mirror ONLINE c1t14d0 ONLINE c0t14d0 ONLINE So I then run a zpool import but I add in the -R option and specify root thus : # zpool import -f -R / 13628474126490956011 One would think that the -R / would not result in any damage but this si the result : # zfs list NAME USED AVAIL REFER MOUNTPOINT zfs0 191G 8.23G 24.5K legacy zfs0/SUNWspro 567M 201M 567M //opt/SUNWspro zfs0/backup190G 8.23G 189G //export/zfs/backup zfs0/backup/qemu 1.09G 934M 1.09G //export/zfs/qemu zfs0/csw 124M 3.88G 124M //opt/csw zfs0/home 239M 7.77G 239M //export/home zfs0/titan24.5K 8.23G 24.5K //export/zfs/titan Note the extra / there that should not be there. Not a simple thing to fix either : # zfs set mountpoint=/opt/SUNWspro zfs0/SUNWspro # zfs list NAME USED AVAIL REFER MOUNTPOINT zfs0 191G 8.23G 24.5K legacy zfs0/SUNWspro 567M 201M 567M //opt/SUNWspro zfs0/backup190G 8.23G 189G //export/zfs/backup zfs0/backup/qemu 1.09G 934M 1.09G //export/zfs/qemu zfs0/csw 124M 3.88G 124M //opt/csw zfs0/home 239M 7.77G 239M //export/home zfs0/titan24.5K 8.23G 24.5K //export/zfs/titan relatively harmless. Looks like altroot should be assumed to be / unless otherwise specified and if it is specified to be / then the altroot can be ignored. I don't know if that is clear but I think you know what I mean : in /usr/src/cmd/zpool/zpool_main.c : static int do_import(nvlist_t *config, const char *newname, const char *mntopts, const char *altroot, int force, int argc, char **argv) if that const char *altroot happens to be nothing more than a forward slash char ( nul terminated ) then I think it should be ignored. What say you ? Dennis ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss -- Eric Schrock, Solaris Kernel Development http://blogs.sun.com/eschrock ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Re: [zfs-discuss] zpool import minor bug in snv_64a
You've tripped over a variant of: 6335095 Double-slash on /. pool mount points - Eric oh well .. no points for originality then I guess :-) Thanks ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
