With bookworm's kernel, QEMU-KVM EFI cannot see virtio partitions

2022-11-18 Thread Jorge P. de Morais Neto
Windows-10-Jorge.xml Description: XML document Hi! After I upgraded to bookworm, my QEMU-KVM VM fails to boot the guest OS; instead it drops to the EFI shell. If I boot the physical host into bullseye's kernel (Linux 5.10) then the VM boots normally. This VM has two virtual disks, each backed

"Failed unmounting /var/cache" error message when shutting down

2022-04-03 Thread Jorge P. de Morais Neto
Hi. This problem is some months old, and I have sent a similar message on 20 Jan 2022 11:57:35 (UTC). Since then I have slightly simplified my Btrfs subvolume layout but the problem remains. When I shutdown or halt my laptop, I get error messages like: [FAILED] Failed unmounting

Re: Btrfs best practices

2022-01-29 Thread Jorge P . de Morais Neto
Hello! I think I should inform this list about my choices so far: Em [2021-12-16 qui 14:13:05-0300], Jorge P. de Morais Neto escreveu: > Should I use a backported kernel as Btrfs [wiki][] recommends? I worry > that bullseye-backports comes from Debian testing with poor security. I'

"Failed unmounting "/{root,var/cache} error messages when shutting down

2022-01-20 Thread Jorge P. de Morais Neto
Hi. When I shutdown or halt my laptop, I see error messages like: [FAILED] Failed unmounting /root. [⋮] [FAILED] Failed unmounting /var/cache. [⋮] [ OK ] Reached target Unmount All Filesystems. [ OK ] Reached target Final Step. Starting halt... My

Debian Btrfs: subvolume layout best practice

2022-01-16 Thread Jorge P. de Morais Neto
Hi! I use Btrfs on Dell Inspiron 5570 laptop with 16 GiB RAM, a 1 TB SATA HDD and an M.2 NVMe 250 GB SSD---a Western Digital WD Blue SN550 rated for 150 TBW. I have read a lot on subvolume layout and, inspired partly by [1], laid out subvolumes according to this fstab excerpt: 1:

Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD

2022-01-03 Thread Jorge P . de Morais Neto
Hi! Em [2022-01-03 seg 10:03:08-0500], Michael Stone escreveu: > On Mon, Jan 03, 2022 at 08:42:29AM -0300, Jorge P. de Morais Neto wrote: >>Indeed I use such high compression to prolong SSD lifetime. > > This is probably misguided and useless at best, at worst you're causing >

Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD

2022-01-03 Thread Jorge P . de Morais Neto
Em [2022-01-02 dom 23:38:48+], piorunz escreveu: > On 02/01/2022 16:33, Jorge P. de Morais Neto wrote: >> I am currently using compress-force=zstd:12 for the SSD and >> compress=zstd:12 for both HDD (internal SATA and external USB3)¹. >> Despite the strong compressi

Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD

2022-01-02 Thread Jorge P . de Morais Neto
Hi Piotr! Happy 2022! Em [2021-12-08 qua 22:54:29+], piorunz escreveu: > On 08/12/2021 19:35, Jorge P. de Morais Neto wrote: >> - Why `compress-force' instead of simply `compress'? > > I've read very extensive discussion about that and came to conclusion > that compre

Re: Btrfs best practices

2021-12-16 Thread Jorge P . de Morais Neto
Hi. Em [2021-12-16 qui 14:55:23-0300], Eduardo M KALINOWSKI escreveu: > On 16/12/2021 14:13, Jorge P. de Morais Neto wrote: >> I'll put system and /home on the SSD but all XDG user dirs² on the >> HDD [snip] > > I don't have that manpage installed, but if you're refering to

Re: Btrfs best practices

2021-12-16 Thread Jorge P . de Morais Neto
Hi. I must add the information that I use zswap: GRUB_CMDLINE_LINUX_DEFAULT="quiet zswap.enabled=1 zswap.zpool=z3fold zswap.compressor=lzo-rle" Em [2021-12-16 qui 14:13:05-0300], Jorge P. de Morais Neto escreveu: > Hi! I own a Dell Inspiron 5570 laptop with 1 TB SATA HDD, a new

Btrfs best practices

2021-12-16 Thread Jorge P. de Morais Neto
Hi! I own a Dell Inspiron 5570 laptop with 1 TB SATA HDD, a new 250 GB NVMe SSD¹ and 16 GiB RAM. I seek reliability, durability, performance and power efficiency. I do weekly duplicity backups to external 1.5 TB USB3 HDD. I'll start also daily rsyncing some of the SSD data to the SATA HDD.

Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD

2021-12-15 Thread Jorge P . de Morais Neto
Hello, Em [2021-12-09 qui 15:00:43+0100], hdv@gmail escreveu: > Regarding the swap space: I wouldn't make it so big. That really isn't > necessary. I have a 64GB RAM system here, on which I have 2GB of swap. I > doubt I have ever seen conky show me more than 35% use. And I am quite a >

Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD

2021-12-15 Thread Jorge P . de Morais Neto
Hello, Em [2021-12-09 qui 01:02:17+], Andy Smith escreveu: > If you are still worried you could partition just half of it and use > it as a physical volume for LVM, which you might want to do anyway to > encrypt it (LUKS), Then over time you can see how much you have > written, how much life

Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD

2021-12-15 Thread Jorge P . de Morais Neto
Hi. Em [2021-12-09 qui 05:14:09+0500], Alexander V. Makartsev escreveu: > So, if you plan to use NVMe SSD as a system drive, I suggest you also > keep /swap partition I am considering swapping to the SSD, yes. > Also, I suggest you to make backups of /home on daily schedule to HDD, > because

Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD

2021-12-14 Thread Jorge P . de Morais Neto
Hello! Em [2021-12-08 qua 22:05:50-0800], David Christensen escreveu: > I would remove the 1 TB HDD, install the 250 GB NVMe SSD, and do a fresh > install of Debian 11 with MBR partitioning, 1E+9 byte boot partition > (ext4) Why MBR partitioning and why a separate boot partition? > I would

Re: Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD

2021-12-08 Thread Jorge P . de Morais Neto
Hi. Thank you for your response. Em [2021-12-08 qua 14:49:50+], piorunz escreveu: > I understand you have one SATA 2.5" slot in your laptop and one NVMe > slot, and you want to utilize them both. That is correct. >> On the SSD I intend to leave 35 GB unpartitioned for extra over >>

Reasonably simple setup for 1TB HDD and 250GB M.2 NVMe SSD

2021-12-08 Thread Jorge P. de Morais Neto
Hi everyone! I have a Dell Inspiron 5570 laptop with 1TB HDD and 16 GiB RAM (it supports 32 GiB). I am about to buy an M.2 NVMe 250GB SSD---a Western Digital WD Blue SN550. I would like to set the system for reliability, SSD durability¹ and performance. I have looked at [Multi HDD/SSD