Sponsored Content
Top Forums UNIX for Beginners Questions & Answers Why bind to LiveCD /proc before building initramfs ? Post 303001552 by hicksd8 on Monday 7th of August 2017 08:50:19 AM
Old 08-07-2017
Quote:
1 Are we binding the /proc and /dev of the Live CD to the broken system ? Or are we binding the /proc and /dev of the broken system to the live cd ?
Neither. The Live CD booted from has no writable media so is useless for doing any real work. So a 'proc' filesystem is created in memory, and system directories on the booted Live CD are mapped (bind) into memory.

Last edited by hicksd8; 08-07-2017 at 10:24 AM..
 

6 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Cannot log on to FreeBSD LiveCD

Hi, I just download FreeBSD LiveCD and burn it to the CDROM (Because I want to learn UNIX). But when I boot the computer from the CDROM, it display the username and password. I type "root" and the password blank. But it does not allow me to login. I try many user name and password that I guest but... (3 Replies)
Discussion started by: 012633023
3 Replies

2. Debian

change initramfs by hand?

What's the correct way to change the initramfs file that's used during boot? I know that it's a gzipped cpio archive, but when I gunzip, extract, re-archive (without changing any files), and gzip, then the result is that the system does not boot any more. And I even set the cpio archive type. ... (18 Replies)
Discussion started by: frankie06
18 Replies

3. Linux

initramfs on 2.4 kernel

Is there a patch available to support initramfs on the 2.4 kernel? We can't upgrade to 2.6 for legacy purposes. All I found on google were early references to how initramfs is better than the 2.4 initrd. Thanks much! (0 Replies)
Discussion started by: amoeba
0 Replies

4. UNIX for Dummies Questions & Answers

_/proc/stat vs /proc/uptime

Hi, I am trying to calculate the CPU Usage by getting the difference between the idle time reported by /proc/stat at 2 different intervals. Now the 4th entry in the first line of /proc/stat will give me the 'idle time'. But I also came across /proc/uptime that gives me 2 entries : 1st one as the... (0 Replies)
Discussion started by: coderd
0 Replies

5. UNIX for Dummies Questions & Answers

LiveCD help

hey, I am build an operating system but i cant seem to get it to boot. I am using GRUB as the boot loader, but I'm not sure if I have all the files need, on the CD, to load the operating system. So can anyone tell me what files I need in order for GRUB to load my OS. P.S. The OS is neither... (1 Reply)
Discussion started by: neur0n
1 Replies

6. Debian

Only have initramfs now...

Long story short, I had a ps3 with both Lenny and Sid repositories. Knowing this is a bad idea and that Lenny is being deprecated I decided I wanted to move everything to Sid. I changed my repos and ran apt-get-update, upgrade, dist-upgrade. Had one warning during the apt-get upgrade that... (0 Replies)
Discussion started by: Azrael
0 Replies
lustatus(1M)						  System Administration Commands					      lustatus(1M)

NAME
lustatus - display status of boot environments SYNOPSIS
/usr/sbin/lustatus [-l error_log] [-o outfile] [BE_name] [-X] DESCRIPTION
The lustatus command is part of a suite of commands that make up the Live Upgrade feature of the Solaris operating environment. See live_upgrade(5) for a description of the Live Upgrade feature. The lustatus command displays the status information of the boot environment (BE) BE_name. If no BE is specified, the status information for all BEs on the system is displayed. The headings in the lustatus information display are described as follows: Boot Environment Name Name of the BE. Is Complete Indicates whether a BE is able to be booted. Any current activity or failure in an lucreate(1M) or luupgrade(1M) operation causes a BE to be incomplete. For example, if there is a copy operation proceeding on or scheduled for a BE, that BE is considered incomplete. Active Now Indicates whether the BE is currently active. The "active" BE is the one currently booted. Active On Reboot Indicates whether the BE becomes active upon next reboot of the system. Can Delete Indicates that no copy, compare, or upgrade operations are being performed on a BE. Also, none of that BE's file systems are currently mounted. With all of these conditions in place, the BE can be deleted. Copy Status Indicates whether the creation or repopulation of a BE is scheduled or active (that is, in progress). A status of ACTIVE, COMPARING (from lucompare(1M)), UPGRADING, or SCHEDULED prevents you performing Live Upgrade copy, rename, or upgrade operations. The following is an example lustatus display: Boot Environment Is Active Active Can Copy Name Complete Now On Reboot Delete Status -------------------- -------- ------ --------- ------ ---------- disk_a_S7 yes yes yes no - disk_b_S7db yes no no no UPGRADING disk_b_S8 no no no no - S9testbed yes no no yes - Note that you could not perform copy, rename, or upgrade operations on disk_b_S8, because it is not complete, nor on disk_b_S7db, because a Live Upgrade operation is pending. The lustatus command requires root privileges. OPTIONS
The lustatus command has the following options: -l error_log Error and status messages are sent to error_log, in addition to where they are sent in your current environment. -o outfile All command output is sent to outfile, in addition to where it is sent in your current environment. -X Enable XML output. Characteristics of XML are defined in DTD, in /usr/share/lib/xml/dtd/lu_cli.dtd.<num>, where <num> is the version number of the DTD file. OPERANDS
BE_name Name of the BE for which to obtain status. If BE_name is omitted, lustatus displays status for all BEs in the system. EXIT STATUS
The following exit values are returned: 0 Successful completion. >0 An error occurred. FILES
/etc/lutab list of BEs on the system /usr/share/lib/xml/dtd/lu_cli.dtd.<num> Live Upgrade DTD (see -X option) ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWluu | +-----------------------------+-----------------------------+ SEE ALSO
lu(1M), luactivate(1M), lucancel(1M), lucompare(1M), lucreate(1M), lucurr(1M), ludesc(1M), ludelete(1M), lufslist(1M), lumake(1M), lumount(1M), lurename(1M), luupgrade(1M), lutab(4), attributes(5), live_upgrade(5) SunOS 5.10 23 Apr 2003 lustatus(1M)
All times are GMT -4. The time now is 08:52 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy