Date: Tue, 27 May 2014 07:51:56 -0600 (MDT) From: Warren Block <wblock@wonkity.com> To: Janos Dohanics <web@3dresearch.com> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: gpart backup, restore and bootcode Message-ID: <alpine.BSF.2.00.1405270748360.92553@wonkity.com> In-Reply-To: <20140527035956.c55adc6dd0ed34da2ac4f843@3dresearch.com> References: <20140527035956.c55adc6dd0ed34da2ac4f843@3dresearch.com>
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On Tue, 27 May 2014, Janos Dohanics wrote: > Hello list members, > > Do the commands gpart backup and gpart restore also back up and restore > the bootcode? The gpart(8) man page says: > > "restore Restore the partition table from a backup previously created > by the backup action and read from standard input. Only the > par- tition table is restored. This action does not affect > the con- tent of partitions. After restoring the partition > table and writing bootcode if needed, user data must be > restored from backup." > > I read this section as "yes" - is this correct? To my knowledge, no. The bootcode is separate from the partition data, and not included with gpart backup. > I assume "yes" since my bootcode is embedded having been added using > "gpart bootcode -b ..." and thus "embed-ded in the partitioning > scheme's metadata". > > Is there a way to show/verify if bootcode is written to the disk? Hmm. 'file -s /dev/ada0', although I think there is no way to tell when that bootcode was updated.
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