Re: [gentoo-user] booting into single mode
On Wed, 31 Aug 2005 16:07:28 +0200 Renat Golubchyk [EMAIL PROTECTED] wrote: Yes. Append softlevel=single to kernel boot parameters. Do you know what the difference is, if any, between that and bootlevel? -- Ian. EOM -- gentoo-user@gentoo.org mailing list
[gentoo-user] booting into single mode
Is it still possible to boot into 'single' mode, ie directly into a no-login root system (for emergencies) ? The kernel dox suggest this should work in Lilo image = /boot/kernel-2.6.9-gentoo-r1 label = Single root = /dev/hda3 append=S read-only but it boots to a login prompt as usual. Replacing 'S' with 'single' doesn't work either. Does anyone have single mode set up satisfactorily ? -- ,, SUPPORT ___//___, Philip Webb : [EMAIL PROTECTED] ELECTRIC /] [] [] [] [] []| Centre for Urban Community Studies TRANSIT`-O--O---' University of Toronto -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] booting into single mode
On 2005-08-31 09:25:48 -0400 (Wed, Aug), Philip Webb wrote: Is it still possible to boot into 'single' mode, ie directly into a no-login root system (for emergencies) ? The kernel dox suggest this should work in Lilo image = /boot/kernel-2.6.9-gentoo-r1 label = Single root = /dev/hda3 append=S read-only but it boots to a login prompt as usual. Replacing 'S' with 'single' doesn't work either. Does anyone have single mode set up satisfactorily ? Not tested but found in 'man init', section 'BOOTFLAGS': -b, emergency Boot directly into a single user shell without running any other startup scripts. ..so, try with append=emergency The difference lies in that 'single' tells the init process to read and execute entries in /etc/inittab, while 'emergency' tells to not do it. You may also try with append=init=/bin/bash or that nice rescue-shell which name just slipped out of my memory.. /bin/sash maybe. -- No virus found in this outgoing message. Checked by 'grep -i virus $MESSAGE' Trust me. pgpUgs0J9GGVL.pgp Description: PGP signature
Re: [gentoo-user] booting into single mode
On Wed 31.08 09:25, Philip Webb wrote: Is it still possible to boot into 'single' mode, ie directly into a no-login root system (for emergencies) ? You can always do that by appending init=/bin/sh (for example) to the kernel line when booting, so when lilo comes up, you append this text to the kernel name. You don't need to change lilo.conf unless you need this very often, then it might be convenient to do so. In lilo.conf you would also just put append=init=/bin/sh to the kernel entry. Bert -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] booting into single mode
On Wed, 31 Aug 2005 09:25:48 -0400 Philip Webb [EMAIL PROTECTED] wrote: Is it still possible to boot into 'single' mode, ie directly into a no-login root system (for emergencies) ? Yes. Append softlevel=single to kernel boot parameters. Cheers, Renat -- Probleme kann man niemals mit derselben Denkweise loesen, durch die sie entstanden sind. (Einstein) -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] booting into single mode
050831 Mariusz P?kala wrote: On 2005-08-31 09:25:48 -0400 (Wed, Aug), Philip Webb wrote: Is it still possible to boot into 'single' mode, ie directly into a no-login root system (for emergencies) ? The kernel dox suggest this should work in Lilo image = /boot/kernel-2.6.9-gentoo-r1 label = Single root = /dev/hda3 append=S read-only but it boots to a login prompt as usual. Replacing 'S' with 'single' doesn't work either. Does anyone have single mode set up satisfactorily ? Not tested but found in 'man init', section 'BOOTFLAGS': -b, emergency Boot directly into a single user shell without running any other startup scripts. so try with append=emergency Yes, that does make progress: the start-up process suspends, while you have a chance to enter the root password for maintenance; after that, you have to exit with 'exit', when the process resumes (or you can enter ^d it skips maintenance mode). maintenance mode seems to be equivalent to booting as root, but ... The difference lies in that 'single' tells the init process to read and execute entries in /etc/inittab, while 'emergency' tells to not do it. ... presumably it stops just before looking at inittab . You may also try with append=init=/bin/bash or that nice rescue-shell which name just slipped out of my memory. Do you mean Busybox ? /bin/sash maybe. That got superseded IIRC. Thanx for the advice. Does anyone else have further light to throw ? -- ,, SUPPORT ___//___, Philip Webb : [EMAIL PROTECTED] ELECTRIC /] [] [] [] [] []| Centre for Urban Community Studies TRANSIT`-O--O---' University of Toronto -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] booting into single mode
050831 Bert Buchholz wrote: On Wed 31.08 09:25, Philip Webb wrote: Is it still possible to boot into 'single' mode, ie directly into a no-login root system (for emergencies) ? You can always do that by appending init=/bin/sh to the kernel line This gets the same result as 'append=emergency', ie it stops before inittab asks for the root password; afterwards, it exits into the regular start-up process (thanx to the other user who also suggested this). The other suggestion -- 'append=softlevel=single' -- doesn't work (no do 'S' or '1'): it says it can't find such a runlevel. It looks as if this is a typically elegant Gentoo solution, but unfortunately one which has not been documented properly anywhere. Anyway, the conclusion is that for emergencies have an entry which contains 'append=emergency'; also, have a rescue diskette (smile). -- ,, SUPPORT ___//___, Philip Webb : [EMAIL PROTECTED] ELECTRIC /] [] [] [] [] []| Centre for Urban Community Studies TRANSIT`-O--O---' University of Toronto -- gentoo-user@gentoo.org mailing list
