TiVo Community Forums Archives - HDVR2 upgrade - replace original 40GB with 120GB Samsung, dd copy or mfsbackup?

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HDVR2 upgrade - replace original 40GB with 120GB Samsung, dd copy or mfsbackup?
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Posted by: tinkererguy

Planning for 2 HDVR2 upgrades this weekend (replacing original drives with 120GB Samsung SV1204H drives), if they arrive that soon.

This forum helped me choose to buy 2 drives Wrom:
esystor (Systor Systems, Inc.)
too bad they ship from CA, long ground journey to CT, but nice $121 price, no S&H or tax.

Bought 2 HDVR2s from Wendy at :
Value Electronics

Before even pluggin' 'em in, I was planning to set aside the originals drives to act as my backups. I realize this is wasteful, but frankly I wouldn't use drives that slow/small in the PCs I build anyhow. And having these spares standing by makes disaster recovery rather straightforward/rapid (critical when gotta do all this whilst kids are asleep), although of course preferences and software updates would be lost I realize.

Anybody:
Why I should go through the Hinsdale backup/restore procedure, given I'll have two "backups" on the original drives?

In this HDVR2 upgrade scenario, is there ANY difference in the end results?

I realize similar questions have been asked before:
see this thread
but I'm asking specifically about my new HDVR2 upgrade proposal, which is the BEST way to go, giving the most faithful replica of my original hard drive, but with more space (and no plans to upgrade further nor add B drive)?

Here's the 2 plans as I read the recent Hinsdale:

PLAN A:
dd if=/dev/hdc of=/dev/hdb bs=1024k
and then
mfsadd -x /dev/hdc

PLAN B:
mfsbackup -Tao - /dev/hdc | mfsrestore -s 127 -xzpi - /dev/hda

FYI, I'm pretty familiar with the whole upgrade routine, I've done a dd copy to preserve recordings before, upgrading a heavily used Sony SAT-T60 A drive, took 2 hours to do the dd copy step

Posted by: weaknees

We like plan B better since you get to increase the swap space easily. Then, if you ever want to add a second drive, you'll have the swap ready for the larger capacity.

Michael