Re: drive names and UUIDs, was Re: Intresting dd fsck grub uuid fstab action

2017-06-03 Thread Joel Rees
On Sun, Jun 4, 2017 at 12:59 AM, Pascal Hambourg wrote: > Le 03/06/2017 à 17:48, Gene Heskett a écrit : >> >> >> I don't believe that will work. dd runs on the raw device, not to an >> artificially created "partition". > > > dd runs on any type of device, including partitions. > But it copies th

Re: drive names and UUIDs, was Re: Intresting dd fsck grub uuid fstab action

2017-06-03 Thread Joel Rees
(Google or something is screwing up the threading. My apologies if I mess it up further.) On Sun, Jun 4, 2017 at 7:30 AM, Fungi4All wrote: > >> From: deb...@lionunicorn.co.uk >> >>> Ι was waiting to see if anyone else found something like this significant >> and willing to contribute some wisdom

Re: drive names and UUIDs, was Re: Intresting dd fsck grub uuid fstab action

2017-06-03 Thread Fungi4All
From: deb...@lionunicorn.co.uk > Ι was waiting to see if anyone else found something like this significant and > willing to contribute some wisdom No wisdom here, I'm afraid. just evolution of the unix-dna > I suspect the experiment would be simple. > Let's say we make a new partition on a disk

Re: drive names and UUIDs, was Re: Intresting dd fsck grub uuid fstab action

2017-06-03 Thread tomas
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Sat, Jun 03, 2017 at 05:59:06PM +0200, Pascal Hambourg wrote: > Le 03/06/2017 à 17:48, Gene Heskett a écrit : > > > >I don't believe that will work. dd runs on the raw device, not to an > >artificially created "partition". > > dd runs on any type

Re: drive names and UUIDs, was Re: Intresting dd fsck grub uuid fstab action

2017-06-03 Thread Pascal Hambourg
Le 03/06/2017 à 18:04, David Wright a écrit : AIUI there's a race condition here, perhaps even several. The correct MBR should be read as normal by the BIOS, but grub then searches by UUID for the kernel/ramdisk, and the kernel searches by UUID for the root filesystem, and we don't know how it

Re: drive names and UUIDs, was Re: Intresting dd fsck grub uuid fstab action

2017-06-03 Thread David Wright
On Sat 03 Jun 2017 at 11:02:54 (-0400), Fungi4All wrote: > Ι was waiting to see if anyone else found something like this significant and > willing to contribute some wisdom No wisdom here, I'm afraid. > I suspect the experiment would be simple. > Let's say we make a new partition on a disk with

Re: drive names and UUIDs, was Re: Intresting dd fsck grub uuid fstab action

2017-06-03 Thread Pascal Hambourg
Le 03/06/2017 à 17:48, Gene Heskett a écrit : I don't believe that will work. dd runs on the raw device, not to an artificially created "partition". dd runs on any type of device, including partitions.

Re: drive names and UUIDs, was Re: Intresting dd fsck grub uuid fstab action

2017-06-03 Thread Gene Heskett
On Saturday 03 June 2017 11:02:54 Fungi4All wrote: > Original Message > From: deb...@lionunicorn.co.uk > To: debian-user@lists.debian.org > > On Thu 01 Jun 2017 at 12:24:28 (-0400), Fungi4All wrote: > > Why don't just skip all this that we are in perfect agreement with > > and go

Re: drive names and UUIDs, was Re: Intresting dd fsck grub uuid fstab action

2017-06-03 Thread Fungi4All
Original Message From: deb...@lionunicorn.co.uk To: debian-user@lists.debian.org On Thu 01 Jun 2017 at 12:24:28 (-0400), Fungi4All wrote: > Why don't just skip all this that we are in perfect agreement with and go to > the juicy part. > After all uuids are unique and fstab are

Re: drive names and UUIDs, was Re: Intresting dd fsck grub uuid fstab action

2017-06-02 Thread David Wright
On Thu 01 Jun 2017 at 12:24:28 (-0400), Fungi4All wrote: > Why don't just skip all this that we are in perfect agreement with and go to > the juicy part. > After all uuids are unique and fstab are all correct, updating-grub would mix > match uuids in writing > its grub.cfg > Two uuids on the sam

Re: drive names and UUIDs, was Re: Intresting dd fsck grub uuid fstab action

2017-06-01 Thread Fungi4All
Original Message Subject: drive names and UUIDs, was Re: Intresting dd fsck grub uuid fstab action From: joel.r...@gmail.com To: Fungi4All Fungi4All-san, I'll try explaining what we don't know whether you understand or not. I understand everything you have written

drive names and UUIDs, was Re: Intresting dd fsck grub uuid fstab action

2017-05-31 Thread Joel Rees
Fungi4All-san, I'll try explaining what we don't know whether you understand or not. First, about /dev/sda /dev/sdb ... When you turn the machine on, these "names" do not exist. Well, at least, the computer does not know which physical device is /dev/sda and which is /dev/sdb, etc. Whe

Re: Intresting dd fsck grub uuid fstab action

2017-05-30 Thread Fungi4All
From: deb...@lionunicorn.co.uk I'm not going to wade through all these imaginings again; sorry. Just some points. Your use of the term imaginings emphasizes clearly how you do not reas but "assume" that this all mighty perfect system can't be at fault and it all lies in my mistakes, without ever

Re: Intresting dd fsck grub uuid fstab action

2017-05-29 Thread David Wright
I'm not going to wade through all these imaginings again; sorry. Just some points. On Mon 29 May 2017 at 15:56:52 (-0400), Fungi4All wrote: >> How would I know which fstab you edited? […] >> IOW how did you decide which disk the kernel had decided to call sda? >> How did you tell which was the ori

Re: Intresting dd fsck grub uuid fstab action

2017-05-29 Thread Fungi4All
From: deb...@lionunicorn.co.uk On Fri 26 May 2017 at 17:52:33 (-0400), Fungi4All wrote: > From: deb...@lionunicorn.co.uk >> On Thu 25 May 2017 at 16:41:37 (-0400), Fungi4All wrote: >> > Le 25/05/2017 à 05:11, Fungi4All a écrit : >> > > I experimented in switching a clone of my sid installation to

Re: Intresting dd fsck grub uuid fstab action

2017-05-27 Thread David Wright
On Fri 26 May 2017 at 17:52:33 (-0400), Fungi4All wrote: > From: deb...@lionunicorn.co.uk >> On Thu 25 May 2017 at 16:41:37 (-0400), Fungi4All wrote: >> > Le 25/05/2017 à 05:11, Fungi4All a écrit : >> > > I experimented in switching a clone of my sid installation to an >> > > experimental, that wa

Re: Intresting dd fsck grub uuid fstab action

2017-05-26 Thread Fungi4All
Original Message Subject: Re: Intresting dd fsck grub uuid fstab action UTC Time: May 26, 2017 5:35 AM From: deb...@lionunicorn.co.uk On Thu 25 May 2017 at 16:41:37 (-0400), Fungi4All wrote: > Le 25/05/2017 à 05:11, Fungi4All a écrit : > > I experimented in switching a

Re: Intresting dd fsck grub uuid fstab action

2017-05-25 Thread David Wright
On Thu 25 May 2017 at 16:41:37 (-0400), Fungi4All wrote: > Le 25/05/2017 à 05:11, Fungi4All a écrit : > > I experimented in switching a clone of my sid installation to an > > experimental, that was the plan. > > Since I was doing other things I thought I'll let the cloning take place > > unattend

Re: Intresting dd fsck grub uuid fstab action

2017-05-25 Thread Fungi4All
Original Message Subject: Re: Intresting dd fsck grub uuid fstab action UTC Time: May 25, 2017 8:57 AM From: pas...@plouf.fr.eu.org Your lines are too long. I didn't know that was a problem, I've learned to write and only hit return on --> a paragraph. Le 25/05

Re: Intresting dd fsck grub uuid fstab action

2017-05-25 Thread Pascal Hambourg
Your lines are too long. Le 25/05/2017 à 05:11, Fungi4All a écrit : I experimented in switching a clone of my sid installation to an experimental, that was the plan. Since I was doing other things I thought I'll let the cloning take place unattended. Let's say sda5/6/7/8/9 were to be cloned to

Intresting dd fsck grub uuid fstab action

2017-05-24 Thread Fungi4All
I experimented in switching a clone of my sid installation to an experimental, that was the plan. Since I was doing other things I thought I'll let the cloning take place unattended. Let's say sda5/6/7/8/9 were to be cloned to sdb5-9 (5 / 6 var 7 sw 8 tmp 9 home) all b partitions were slightly l