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Groups > comp.sys.raspberry-pi > #37800 > unrolled thread
| Started by | Chris Green <cl@isbd.net> |
|---|---|
| First post | 2026-03-09 16:51 +0000 |
| Last post | 2026-03-26 22:00 +0000 |
| Articles | 10 — 8 participants |
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Can I dd copy an sdcard image to a USB stick for a Pi 4B? Chris Green <cl@isbd.net> - 2026-03-09 16:51 +0000
Re: Can I dd copy an sdcard image to a USB stick for a Pi 4B? JJenssen <joemajen@arcor.de> - 2026-03-09 18:54 +0100
Re: Can I dd copy an sdcard image to a USB stick for a Pi 4B? Chris Green <cl@isbd.net> - 2026-03-09 18:28 +0000
Re: Can I dd copy an sdcard image to a USB stick for a Pi 4B? paul lee <usenet@vk3heg.net> - 2026-03-10 14:00 -0700
Re: Can I dd copy an sdcard image to a USB stick for a Pi 4B? druck <news@druck.org.uk> - 2026-03-10 19:52 +0000
Re: Can I dd copy an sdcard image to a USB stick for a Pi 4B? Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-03-11 00:48 +0000
Re: Can I dd copy an sdcard image to a USB stick for a Pi 4B? John R Walliker <jrwalliker@gmail.com> - 2026-03-11 09:08 +0000
Re: Can I dd copy an sdcard image to a USB stick for a Pi 4B? Michael J. Mahon <mjmahon@aol.com> - 2026-03-25 18:37 +0000
Re: Can I dd copy an sdcard image to a USB stick for a Pi 4B? druck <news@druck.org.uk> - 2026-03-25 20:58 +0000
Re: Can I dd copy an sdcard image to a USB stick for a Pi 4B? rbowman <bowman@montana.com> - 2026-03-26 22:00 +0000
| From | Chris Green <cl@isbd.net> |
|---|---|
| Date | 2026-03-09 16:51 +0000 |
| Subject | Can I dd copy an sdcard image to a USB stick for a Pi 4B? |
| Message-ID | <kca38m-4nod2.ln1@q957.zbmc.eu> |
Does a bootable USB stick for a Pi 4B have the same format as a bootable SD card? I.e. can I just use dd to copy one to the other (not on the Pi itself) and expect it to work? -- Chris Green ·
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| From | JJenssen <joemajen@arcor.de> |
|---|---|
| Date | 2026-03-09 18:54 +0100 |
| Message-ID | <10on1hc$3h9ls$1@dont-email.me> |
| In reply to | #37800 |
Am 09.03.26 um 17:51 schrieb Chris Green: > Does a bootable USB stick for a Pi 4B have the same format as a > bootable SD card? I.e. can I just use dd to copy one to the other > (not on the Pi itself) and expect it to work? > My experience is that you can.
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| From | Chris Green <cl@isbd.net> |
|---|---|
| Date | 2026-03-09 18:28 +0000 |
| Message-ID | <n2g38m-d54e2.ln1@q957.zbmc.eu> |
| In reply to | #37801 |
JJenssen <joemajen@arcor.de> wrote: > Am 09.03.26 um 17:51 schrieb Chris Green: > > Does a bootable USB stick for a Pi 4B have the same format as a > > bootable SD card? I.e. can I just use dd to copy one to the other > > (not on the Pi itself) and expect it to work? > > > > My experience is that you can. OK, thanks. -- Chris Green ·
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| From | paul lee <usenet@vk3heg.net> |
|---|---|
| Date | 2026-03-10 14:00 -0700 |
| Message-ID | <11b1c21a.1.105.420@vk3heg.net> |
| In reply to | #37800 |
CG> Does a bootable USB stick for a Pi 4B have the same format as a CG> bootable SD card? I.e. can I just use dd to copy one to the other CG> (not on the Pi itself) and expect it to work? While I don't understand the 'format' bit, yes you can absolutely dd a USB to and SD for a Pi image... dd if=/dev/xxx of=/dev/xxx (There are other options you can use that I prefer;) dd if=/dev/xxx of=/dev/xxx bs=4M status=progress conv=fsync Find USB/SD devices: lsblk Verify write after dd: sync |07p|15AULIE|1142|07o |08.........
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| From | druck <news@druck.org.uk> |
|---|---|
| Date | 2026-03-10 19:52 +0000 |
| Message-ID | <10opsqg$h7mi$1@druck.eternal-september.org> |
| In reply to | #37803 |
On 10/03/2026 21:00, paul lee wrote: > CG> Does a bootable USB stick for a Pi 4B have the same format as a > CG> bootable SD card? I.e. can I just use dd to copy one to the other > CG> (not on the Pi itself) and expect it to work? > > While I don't understand the 'format' bit, yes you can absolutely dd a USB to and SD for a Pi image... > > dd if=/dev/xxx of=/dev/xxx Just make sure you put the source device name in for xxx on the left, and the correct destination device name for xxx on the right. If you do get it wrong the disc will be corrupted instantly and pressing Ctrl+C wont be quick enough. Use lsblk to list the available drives and make sure you don't write to anything that is mounted. If your destination drive is temporarily mounted under /media/username do a sudo unmount /dev/xxx before using the dd command. ---druck
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| From | Lawrence D’Oliveiro <ldo@nz.invalid> |
|---|---|
| Date | 2026-03-11 00:48 +0000 |
| Message-ID | <10oqe5a$mufh$3@dont-email.me> |
| In reply to | #37805 |
On Tue, 10 Mar 2026 19:52:49 +0000, druck wrote: > Use lsblk to list the available drives and make sure you don't write > to anything that is mounted. It is useful add output of the SIZE, VENDOR and MODEL fields in lsblk, as additional verification that you’re destroying the right volume. ;) > sudo unmount /dev/xxx s/unmount/umount/
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| From | John R Walliker <jrwalliker@gmail.com> |
|---|---|
| Date | 2026-03-11 09:08 +0000 |
| Message-ID | <10orbeq$urv0$1@dont-email.me> |
| In reply to | #37806 |
On 11/03/2026 00:48, Lawrence D’Oliveiro wrote: > On Tue, 10 Mar 2026 19:52:49 +0000, druck wrote: > >> Use lsblk to list the available drives and make sure you don't write >> to anything that is mounted. > > It is useful add output of the SIZE, VENDOR and MODEL fields in lsblk, > as additional verification that you’re destroying the right volume. ;) > >> sudo unmount /dev/xxx > > s/unmount/umount/ Then check it again. Then one more time to be sure. John
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| From | Michael J. Mahon <mjmahon@aol.com> |
|---|---|
| Date | 2026-03-25 18:37 +0000 |
| Message-ID | <BcmcnVDb_IvQtln0nZ2dnZfqn_adnZ2d@giganews.com> |
| In reply to | #37805 |
druck <news@druck.org.uk> wrote: > > Just make sure you put the source device name in for xxx on the left, > and the correct destination device name for xxx on the right. If you do > get it wrong the disc will be corrupted instantly and pressing Ctrl+C > wont be quick enough. …sounds like the voice of experience. ;-) -- -michael - NadaNet 3.1 and AppleCrate II: http://michaeljmahon.com
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| From | druck <news@druck.org.uk> |
|---|---|
| Date | 2026-03-25 20:58 +0000 |
| Message-ID | <10q1i9c$29hb6$1@druck.eternal-september.org> |
| In reply to | #37893 |
On 25/03/2026 18:37, Michael J. Mahon wrote: > druck <news@druck.org.uk> wrote: >> >> Just make sure you put the source device name in for xxx on the left, >> and the correct destination device name for xxx on the right. If you do >> get it wrong the disc will be corrupted instantly and pressing Ctrl+C >> wont be quick enough. > > …sounds like the voice of experience. ;-) Yes, anyone that's used dd more than a couple of times has lost at least one disc that way. It does teach the importance of attention to detail and BACKUPS! ---druck
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| From | rbowman <bowman@montana.com> |
|---|---|
| Date | 2026-03-26 22:00 +0000 |
| Message-ID | <n2lok9FgtkrU2@mid.individual.net> |
| In reply to | #37895 |
On Wed, 25 Mar 2026 20:58:20 +0000, druck wrote: > On 25/03/2026 18:37, Michael J. Mahon wrote: >> druck <news@druck.org.uk> wrote: >>> >>> Just make sure you put the source device name in for xxx on the left, >>> and the correct destination device name for xxx on the right. If you >>> do get it wrong the disc will be corrupted instantly and pressing >>> Ctrl+C wont be quick enough. >> >> …sounds like the voice of experience. ;-) > > Yes, anyone that's used dd more than a couple of times has lost at least > one disc that way. It does teach the importance of attention to detail > and BACKUPS! > > ---druck They don't call it 'data destroyer' for nothing.
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