On Wed, Jun 15, 2016 at 11:59 PM, Allan Zhang <[email protected]> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA512 > > Matt, > > just curious, is there any reason you chose a MBR +UEFI boot? >
> Surely your laptop came with Windows, which mandates that GPT accompanies > UEFI. > I think because this was (is!) my first UEFI laptop and I was unfamiliar with GPT when I first partitioned the disk. I wiped windows right away so tha wasn't an issue for me. It was also my first Arch install, so there were a number of unfamiliar elements, and I stuck to what I knew where I could. > > Could you have used your M.2 for swap? > I certainly expected to. On boot, the kernel seemed to have trouble finding the M.2 device, and I couldn't immediately tell what the problem was, so it seemed easiest to make space on the old drive and put the swap there. > > As for suspend to RAM, aka regular suspend, I find my Thinkpad does not > live for too long (a few hours) in this state, evident by the "i" LED not > blinking anymore. It's very strange that you have to remove the battery > though. > I don't think those two issues are the same. The battery doesn't drain out on my laptop; instead, I think something goes wrong in the electronics of the power circuitry. I'm not sure what causes it but there are reports of similar behaviour online. > > Also, wouldn't suspending to RAM defeat the purpose of your encrypted disk? > ... yeeeeesssss... though since I'm not encrypting the suspend2disk image either, that is at least as big an issue as s2ram, I suppose. In general it seems to me that best practices are still hard to implement fully unless you're willing to devote a fair amount of time to develoing the necessary expertise. - -------- Original Message -------- > From: Matt Price via talk <[email protected]> > Sent: June 15, 2016 9:22:13 PM EDT > Cc: GTALUG Talk <[email protected]> > Subject: Re: [GTALUG] Thinkpad [3]: Aligning size of dm-crypt and > partition/filesystem > > On Wed, Jun 15, 2016 at 5:59 PM, o1bigtenor <[email protected]> wrote: > > > On Wed, Jun 15, 2016 at 9:43 AM, Matt Price via talk <[email protected]> > > wrote: > > > Final question! In order to enable suspend to disk, I ended up > shrinking > > my > > > root partition (I also added an M.2 SSD, so the whole thing was a bit > > > complex). In the end I got it to work, but I made some kind of an error > > and > > > currently my on-disk “crypt” is a little larger than the partition and > > file > > > system that I am using for root, so I have some wasted space on the > disk: > > > > > > ➜ ~ sudo fdisk /dev/sda > > > > > > Command (m for help): p > > > Disk /dev/sda: 238.5 GiB, 256060514304 bytes, 500118192 sectors > > > Units: sectors of 1 * 512 = 512 bytes > > > Sector size (logical/physical): 512 bytes / 512 bytes > > > I/O size (minimum/optimal): 512 bytes / 512 bytes > > > Disklabel type: gpt > > > Disk identifier: 9B4C2E92-6C7D-4C69-B67B-1823E4DB9BA6 > > > > > > Device Start End Sectors Size Type > > > /dev/sda1 2048 1026047 1024000 500M EFI System > > > /dev/sda2 1026048 106907647 105881600 50.5G Linux filesystem > > > /dev/sda3 106907648 483340287 376432640 179.5G Linux LVM > > > /dev/sda4 483340288 500117503 16777216 8G Linux swap > > > > > > ➜ ~ sudo cryptsetup status cryptsetup > > > /dev/mapper/cryptsetup is active and is in use. > > > type: LUKS1 > > > cipher: aes-xts-plain64 > > > keysize: 256 bits > > > device: /dev/sda2 > > > offset: 4096 sectors > > > size: 105877504 sectors > > > mode: read/write > > > > > > Anyone out there have advice abot how to safely and reliably expand the > > > partition and the file system so that they both end precisely where the > > > crypt does? > > > > > > Thanks again guys! as always, it’s much appreciated. > > > > > > > No ideas on the other two problems but on this one I would recommend > > using something like: > > > > boot your system using a system rescue disc > > > Yes! I use the Ubuntu livecd just because it's easy to get > > > adjust your partition(s) (carefully please) using gparted > > > is that adequate? Can I be sure that the crypt and the partition match > exactly? I feel like it's somewhat difficult to measure the size & extent > of a crypt in units that gparted also understands > > > close > > > > reboot as regular > > > > Should be real easy (assuming that the empty space is right beside > > where you want it. > > Recommend a backup before but then you already know that - - yes? > > > yes... though I don't always follow recommendations. > > > > > Let us know what you use > > > > > - ------------------------------------------------------------------------ > > - --- > Talk Mailing List > [email protected] > https://gtalug.org/mailman/listinfo/talk > -----BEGIN PGP SIGNATURE----- > > iQI5BAEBCgAjHBxBbGxhbiBaaGFuZyA8YWxsYW5AYXppYy5jYT4FAldiJB4ACgkQ > lQhQ+uFN8kNrPw/+OKK3a5w8oAK3ElJ5CBEyy9Hk+1BSvd+24t04v0yZGejlIBMB > QzJCnpG2FTvQ/Knjr4glTjCGNSXKkMZPdlxD3Jv+laFmMscg9Ohq8aoKO23gGtvQ > yqu9wxXVW1p94RaS5qhkO67QZyPnOB31vZJusnI8uFD4QGa7hASVA1FMnly70Uk6 > finTa3YoQJ0fuLwS+DuVjvD1RHpc8qnM2+LpnlRw6djUilYqMYcRw8aXrApJrhKO > NsImN45XHIRQL7tbaDtGfJIlbr5CB5OvG8Fyi7baL2qDZCiGjKAWy4STFikDM/W2 > 7ulDIgthYrWMZkqJg+6sYtcP6GJ7IUrRMpDmEaf8RRqiEhBryCRt8ECh9LkvPIG7 > O+WytW0PIXMLyHWMbGqu3d1PknkDtk2OXcyG2TFqgQqcQxK7x0DtMTBddOwu4OPB > Dfq8YHEriTA1K2y3GgewC3OJcrnmwCYqeu0vnfQSawf9bScLh3PgG4M9tFhE34lk > nNBXaa1i/H2tkQNPf9pA1uvrCdDLBKoR+IwWXTzCFzWXPgb21FwJ0nCNoWfreKBE > sGvIliCuo81L4RRIjDQd/UZendyyDNrzP9bnzxPu+Upq2eIFSd995IymwepEiA41 > v/Vn27qzEdPKTwiixDpF1q/LOFs2u4yYUhVlcJ85qZyoJcqVhfQGq6SJS4U= > =ScN/ > -----END PGP SIGNATURE----- > >
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